TITLE - ABSTRACT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

      A/Prof   Iraj  Afnan:

    Address:   Flinders University
                       School of Chemistry, Physics & Earth Sciences
                       Flinders University
                       GPO Box 2100
                       Adelaide, SA 5001
                       AUSTRALIA

      Email iraj.afnan@flinders.edu.au
      Phone:  + (61) 8 8201 2322

    

      Prof Reinhard Alkofer:

       Address:   Institute of Theoretical Physics, Tuebingen University
                          Auf der Morgenstelle 14
                          D-72076 Tuebingen
                          GERMANY
       Email :  Reinhard.Alkofer@uni-tuebingen.de
       Phone:  + (49) 7071 297 5850

       Title: Analytic structure of the gluon and quark propagators in Landau gauge QCD
       Abstract : In Landau gauge QCD the infrared behavior of the
                        propagator of transverse gluons can be determined analytically from
                        Dyson-Schwinger equations to be a power law. This propagator clearly
                        shows positivity violation indicating the absence of the transverse
                        gluons from the physical spectrum, i.e. gluon confinement. A simple
                        analytic structure for the gluon propagator is proposed capturing all
                        of its features. We provide arguments that the Landau gauge quark
                        propagator possesses a singularity on the real timelike axis. For this
                        propagator we find a positive definite Schwinger function.

 

       Dr Chris Allton

      Adress:  University of Wales Swansea
                     Department of Physics
                     Swansea SA2 8PP
                     U.K.
      Email :  c.allton@swan.ac.uk
      Phone:  (+ 44) 1792 295 738

      Title: QCD at non-zero temperature and density
      Abstract: We discuss the equation of state for 2 flavor QCD at non-zero
                      temperature and density. Derivatives of the partition function with
                      respect to quark chemical potential are calculated, enabling estimates
                     of the pressure, quark number density and associated susceptibilities.
                     The phase transition line for 2 and 3-flavor QCD and the critical
                      endpoint in the temperature, chemical potential plane are investigated
                      in the low density regime.

 

      Prof Rajeev BHALERAO

      Address: Department of Theoretical Physics,
                      Tata Inst. of Fundamental Research,
                      Homi Bhabha Road, Colaba,
                      Mumbai 400 005
                      INDIA

      Email :  bhalerao@tifr.res.in
      Phone:  ( +91) 22  2280 4545 ext. 2219

 

     Prof Wolfgang BENTZ

      Address: Dept. of Physics, School of Science, Tokai University
                     1117 Kitakaname, Hiratsuka-shi
                     Kanagawa 259-1292,
                     JAPAN

      Email: bentz@keyaki.cc.u-tokai.ac.jp
      Phone:  ( +
81 )463-58-1211 (ext. 3703)

      Title: Matter at normal and high densities in an effective chiral quark theory
     Abstract:
We use a chiral effective quark theory to
                    describe the nucleon as a quark-diquark state, the equation of state
                    of normal nuclear matter, the properties of nucleons bound in the
                    medium, and the phase transition to color superconducting quark
                    matter at high densities.
 

      Dr Francois BISSEY

     Address: Massey University
                     Institute of Fundamental Sciences
                     Private Bag 11 222
                     Palmerston North
                     New Zealand

     Email: F.R.Bissey@massey.ac.nz
     Phone:

     Title: Preliminary results on the flux tube of the 3 quark potential
     Abstract: We present our first results on the formation and shape of the gluon
                      flux tube linking a three quark system on the lattice. We investigate
                      several kinds of paths on the lattice to connect the quarks together
                      and study the possible dependence of the flux tube shape on those paths.

   

     Prof David BLASCHKE

     Address:  Rostock University
                      Department of Physics
                      University of Rostock
                      Universitaetsplatz 3
                      D-18051 Rostock
                      Germany

     Email: david.blaschke@physik.uni-rostock.de
     Phone: ( +
49) 381-498 6960

     Title: Exploring the QCD phase diagram
     Abstract:
A nonlocal chiral quark model is introduced which reproduces meson
                    masses and decay constants as well as lattice results for the quark propagator
                    in the vacuum. The extension to nonzero temperatures and chemical potentials is
                    performed within the Matsubara formalism in order to obtain the critical lines
                    for chiral symmetry restoration, deconfinement and color superconductivity in
                    the phase diagram. Implications for observables in heavy-ion collisions and
                    compact stars are presented.
 

     Mrs Sharada BOINEPALLI

     Address: The University of Adelaide
                    CSSM-Department of Physics and Mathematical Physics
                    5005, Adelaide
                    AUSTRALIA
     Email Address: sboinepa@physics.adelaide.edu.au
     Phone: ( +
61) 8 83033424

 

      Prof Stanley BRODSKY

      Address: SLAC Stanford University
                     5725 Sand Hill Road
                     Menlo Park, CA 94025
                     USA
      Email : sjbth@slac.stanford.edu
      Phone:
(+ 1 ) 650 926 2644 01

       Title: Introduction and Applications of Light-Front QCD

       Abstarct: The concept of a wave function of a hadron as a composite of relativistic
                      quarks and gluons is naturally formulated in terms of the light-front Fock
                      expansion at fixed light-front time. The freedom to choose the
                      light-like quantization four-vector provides an explicitly covariant
                      formulation of light-front quantization and can be used to determine the
                      analytic structure of light-front wave functions. LFWFs with definite
                      total angular momentum are eigenstates of a kinematic angular momentum
                      operator and satisfy all Lorentz symmetries. The analytic dependence of
                      LFWFs on invariant mass implies that hadron form factors are analytic
                      functions of the momentum transfer squared in agreement with dispersion
                      theory and perturbative QCD. A model incorporating leading-twist
                      perturbative QCD constraints is consistent with recent data for the
                      ratio of proton Pauli and Dirac form factors.

                     A remarkable consequence of AdS/CFT correspondence is the
                     nonperturbative derivation of dimensional counting rules for hard
                     scattering processes. String/gauge duality also predicts the QCD
                     power-law behavior of light-front Fock-state hadronic wavefunctions
                     with arbitrary orbital angular momentum at high momentum transfer.
                     The form of these wavefunctions can be used as an initial ansatz for a
                     variational treatment of the light-front QCD Hamiltonian.

                     It is usually assumed that the structure functions measured in deep
                     inelastic lepton-proton scattering are simply the probability
                    distributions for finding quarks and gluons in the target nucleon defined
                    from light-front wavefunctions. In fact, gluon exchange between the
                    fast outgoing quark and the target spectator effects leading-twist
                    structure functions in a profound way, leading to diffractive
                    leptoproduction processes, shadowing of nuclear structure functions, and
                    target spin asymmetries. In particular, the final-state interactions
                    from gluon exchange lead to single-spin asymmetries in semi-inclusive
                   deep inelastic lepton-proton scattering which are not power-law
                    suppressed in the Bjorken limit.

 

       A. Prof Matthias BURKHARDT

       Address: New Mexico State University
                       Department of Physics
                       Box 30001, MSC 3D
                       New Mexico State University
                       Las Cruces, NM 88003
                       USA
       Email : burkardt@nmsu.edu
       Phone:
1 505 646 1928

      Title: Quark Correlations and Single Spin Asymmetries
      Abstract:
A simple physical mechanism to explain the Sivers effect is proposed.
                      The average transverse momentum of the quarks in gauge invariant Sivers
                      distributions is related to correlations work the gauge field at
                      $x^-=\infty$. Using finiteness conditions for light-cone Hamiltonians we
                      are thus able to relate the average transverse momentum of the quarks to
                      quark correlations in the transverse plane. This result has a nice
                      semi-classical interpretation where the average transverse momentum of the
                      outgoing quark arises from the Lorentz force due to the chromo electric
                      field of the spectators. As a byproduct, we develop a simple rule to
                      relate the sign of the generalized parton distribution E with the sign of
                      the Sivers effect.
 

       

       Mr Ian Cloet

       Address: The University of Adelaide
                     CSSM-Department of Physics and Mathematical Physics
                     5005, Adelaide
       Email : icloet@physics.adelaide.edu.au
       Phone:
(+ 61) 8 8303 3427
      

      Dr Rodney Crewther
     
        Address: Department of Physics,
                      University of Adelaide,
                      Adelaide, SA 5005
                      AUSTRALIA

         Email : rcrewthe@physics.adelaide.edu.au
         Phone:
( +61 )  8 8303 4576/3993

         Title: Heavy quarks decoupled simultaneously
         Abstract:
If there is more than one large mass scale, large scale-invariant
                         logarithms occur, so conventional methods
                         for evolving through thresholds are not applicable. The problem can be
                         circumvented by introducing several
                        running couplings, one for each heavy quark, and requiring that
                        scale-invariant expressions for simultaneous
                        decoupling agree with known results for quarks decoupled one at a time. The
                        classic case of heavy quarks
                        decoupling from the weak neutral current is solved explicitly to NLO accuracy.

 

       Mr Benjamin CROUCH

       Address: The University of Adelaide
                       CSSM-Department of Physics and Mathematical Physics
                       5005, Adelaide

       Email:  bcrouch@physics.adelaide.edu.au
       Phone: 
( + 61) 8 8303 3428

 

        Prof. Robert DELBOURGO

        Address:  School of Mathematics and Physics
                         University of Tasmania
                         GPO Box 252-21, Hobart
                         Tasmania, 7001
                         AUSTRALIA
        Email: Bob.Delbourgo@utas.edu.au
        Phone: ( +
61) 3 6226 2403

        Title: Nonperturbative characteristics of Green functions
        Abstract:
I will describe a method of deriving a "nonperturbative" Green function
                        in a manner whichcaptures the topology of the corresponding Feynman
                       diagram, via the skeleton expansion. This allows one to determine the
                       anomalous dimensions of the field theory as a function of the coupling constants.

 

      Dr Will DETMOLD

      Address: University of Washington
                      Department of Physics, Box 351560
                      University of Washington
                      Seattle, WA 98195
                      USA
      Email: wdetmold@phys.washington.edu
      Phone: ( +
1) 2065437482

      Title: Electroweak properties of two-nucleon systems in lattice QCD
      Abstract:
We discuss how to determine the short-distance contributions to
                     electroweak matrix elements in the two-nucleon sector from lattice
                     QCD. Such contributions result from meson-exchange currents in
                     potential models, and from local four-nucleon operators in nuclear
                     effective field theory.

                    We make use of the energy shifts that two nucleons undergo when
                    restricted to a finite (periodic) volume. By analyzing these shifts in
                    the presence of a background electroweak field, we can determine the
                    short-distance contribution to the deuteron magnetic moment, the near
                    threshold cross-section of $n p \rightarrow d \gamma$, and neutrino
                    induced deuteron breakup. The last of these is only poorly known
                    experimentally and will be the leading source of uncertainty in the
                    SNO determination of neutrino mass and mixing matrices and a direct
                    calculation in lattice QCD would be invaluable.
 

       Dr Christian FISCHER

       Address: University of Tuebingen
                       Institut fuer Theoretische Physik
                      Auf der Morgenstelle 14
                      72076 Tuebingen
                      Germany

       Email: chfi@tphys.physik.uni-tuebingen.de
       Phone:
( + 49) 7071 2978641

       Title: Dynamical Chiral Symmetry Breaking in Landau Gauge QCD
       Abstract:
We present approximate, non-perturbative solutions for the
                    gluon, ghost and quark propagators as well as the running coupling
                    from a coupled system of Dyson--Schwinger equations (DSE) in Landau
                    gauge QCD. In the infrared we find a weakly vanishing gluon
                    propagator and a singular ghost propagator in accordance with the
                   Kugo-Ojima confinement criterion. In the quark mass function we
                   obtain a sizeable amount of dynamical chiral symmetry breaking. The
                   generated quark masses agree well with phenomenological values. In
                   the infrared momentum regime the propagators are determined
                   analytically from the DSEs. This allows us to continue our results
                   into the time-like momentum regime. We obtain a cut on the real
                   time-like momentum axis corresponding to negative norm contributions
                   in the gluon spectral function. On the other hand the quark
                   propagator satisfies positivity and possesses a singularity on the
                   real time-like momentum axis.

 

       Mr Marco GHIOTTI


       Address:
The University of Adelaide
                      CSSM-Department of Physics and Mathematical Physics
                      5005, Adelaide
                      AUSTRALIA

       Email: mghiotti@physics.adelaide.edu.au
       Phone:
(+61) 8 8303 3427

 

        Prof  Jeff  GREENSITE

        Address: Physics and Astronomy Dept.
                       San Francisco State University
                       1600 Holloway Ave
                       San Francisco CA 94132
                       USA
        Email : greensit@stars.sfsu.edu
        Phone: ( +
1) 415 338 1600


        Title: Coulomb Energy and the Phase Structure of Non-Abelian Gauge Theories
        Abstract:
The confining property of the gluon propagator in Coulomb
                       gauge is related to the unbroken realization of a certain global
                       remnant gauge symmetry. We introduce an order parameter for this
                       symmetry, and investigate its behavior in various gauge theories, with
                       and without matter, at zero and high temperatures.

 

        Assist. Prof. Chris HAMER

        Address: UNSW
                        School of Physics
                       University of NSW
                       Sydney NSW 2052
                       AUSTRALIA

        Email : C.Hamer@unsw.edu.au
        Phone:
( +61) 2  9385 4590

        Title: The Hamiltonian Limit of (3+1)D SU(3) lattice gauge theory on anisotropic lattices
        Abstract:
The extreme anisotropic limit of Euclidean SU(3) Yang-Mills
                        theory is examined to extract the Hamiltonian limit, using standard
                        path integral Monte Carlo (PIMC) methods. We examine the mean
                        plaquette and string tension and compare them to results obtained
                       within the Hamiltonian framework of Kogut and Susskind. The results
                       are a significant improvement upon previous Hamiltonian estimates,
                       despite the extrapolation procedure necessary to extract
                       observables. We conclude that the PIMC method is a reliable method of
                       obtaining results for the Hamiltonian version of the theory. Our
                       results also clearly demonstrate the universality between the
                       Hamiltonian and Euclidean formulations of lattice gauge theory. It is
                       particularly important to take into account the renormalization of
                       both the anisotropy and the Euclidean coupling in obtaining these results.

 

       Mr John HEDDITCH

       Address: The University of Adelaide
                     CSSM-Department of Physics and Mathematical Physics
                     5005, Adelaide
                     AUSTRALIA
       Email Address: jhedditc@physics.adelaide.edu.au
       Phone: ( +
61) 8 8303 3428

       Title: FLIC Mesons: Hybrids and Exotics
       Abstract:
We investigate a variety of interpolating fields for mesons, including a
                      number that include contributions from excited glue, using the FLIC fermion
                      action and an improved gluonic action. We show that these
                      operators do generate mesons whose masses are equivalent to the standard
                      operators within errors. We also find a signal for the $J^{PC} = 1^{-+}$
                      exotic meson.
 

       Mr Hideaki IIDA

       Address: Tokyo Institute of Technology
                      Ohkayama 2-12-1, Meguro, Tokyo 152-8551
                      JAPAN
      Email: iida@th.phys.titech.ac.jp
      Phone: (+
81) 3-5734-3546

       Title: Lattice-QCD based Schwinger-Dyson approach for Chiral Phase Transition
       Abstract:
We propose the Schwinger-Dyson(SD) formalism based on
                      lattice QCD, i.e., LQCD-based SD formalism, for the study of dynamical
                      chiral-symmetry breaking in QCD. We extract the kernel function
                      $K(p^2)$ in the SD equation from the lattice data of the quark
                      propagator in the Landau gauge. As remarkable features, we find
                      infrared vanishing and intermediate enhancement of the kernel function
                      $K(p^2)$ in the SD equation. We apply the LQCD-based SD equation to
                      thermal QCD, and calculate the quark mass function and quark
                      condensate at the finite temperature. We find chiral symmetry
                      restoration at the critical temperature $T_c \sim 100MeV$.

 

       Dr Alexander KALLONIATIS

       Address: The University of Adelaide
                      CSSM-Department of Physics and Mathematical Physics
                      5005, Adelaide
        Email: akalloni@physics.adelaide.edu.au
        Phone:
(+ 61 ) 8 8303 3426

        Title: Axial U(1) symmetry in the domain model
        Abstract:
The domain model is briefly reviewed including the mechanism
                      of confinement and the properties of quark fluctuations in the
                      model. The logarithm of the quark determinant displays the abelian
                      anomaly. This in turn allows for spontaneous breaking of
                      SU(3,L)xSU(3,R) without an axial U(1) degeneracy in the ground
                      state. The manifestation of these properties in pseudoscalar
                      correlation functions is discussed.
 

       Dr Waseem KAMLEH

       Address: The University of Adelaide
                      CSSM-Department of Physics and Mathematical Physics
                      5005, Adelaide
                      AUSTRALIA
       Email: wkamleh@physics.adelaide.edu.au
       Phone:
(+ 61) 8 8303 3425

       Title: FLIC Overlap Quark Propagator
       Abstract:
Chiral symmetry on the lattice has been realised with overlap
                       fermions. The use of the FLIC fermion action as the overlap kernel has
                       been shown to have computational benefits. The FLIC overlap propagator in
                       quenched QCD is studied to gain insight into its physical properties. The
                       recently developed means of moving to full QCD is also discussed.
 

      Dr Ayse KIZILERSU

      Address: The University of Adelaide
                     CSSM-Department of Physics and Mathematical Physics
                     5005, Adelaide
                     AUSTRALIA
       Email: akiziler@physics.adelaide.edu.au
       Phone:
(+ 61) 8303 3549

       Title: Unquenched Fermion -Gauge Boson Vertex in the Covariant Gauge
       Abstract:
 I will be discussing unquenched fermion-gauge boson vertex in the
                        general covariant gauge.  I will also discuss the  the importance of the vertex.

     

        Mr Ben LASSCOCK

        Address:
The University of Adelaide
                        CSSM-Department of Physics and Mathematical Physics
                        5005, Adelaide
                       
AUSTRALIA
       Email: blasscoc@physics.adelaide.edu.au
       Phone:
(+ 61) 8 8388 2193
 

        Ms Sarah LAWLEY

        Address:
The University of Adelaide
                       CSSM-Department of Physics and Mathematical Physics
                       5005, Adelaide
                      
AUSTRALIA
        Email: slawley@physics.adelaide.edu.au
        Phone: (+
61) 8  8303 3543
 

         Assoc Prof Derek LEINWEBER

         Address:
The University of Adelaide
                         CSSM-Department of Physics and Mathematical Physics
                         5005, Adelaide
                        
AUSTRALIA
         Email: dleinweb@physics.adelaide.edu.au
         Phone: (+
61) 8 8303 3423

         Title:  Precise Determination of the Strangeness Magnetic Moment of the Nucleon
         Abstarct:
By combining the constraints of charge symmetry with modern chiral
                          extrapolation techniques and recent low-mass FLIC-fermion
                          lattice-QCD simulations of the individual quark contributions to
                          the magnetic moments of the nucleon octet, a precise determination
                          of the strange magnetic moment of the proton is obtained. The
                          result is consistent with the latest experimental measurements but
                          is an order of magnitude more precise. This poses a tremendous
                          challenge for future experiments.

 

        Dr Max LOHE

         Address:
The University of Adelaide
                         Department of Physics and Mathematical Physics
                         SA 5005
                         AUSTRALIA
         Email: Max.Lohe@adelaide.edu.au
         Phone:
(+ 61) 8 8303 5315
 

         Prof  Tim LONDERGAN

         Address:
Indiana University
                        Wells Scholars Program
                        1331 E 10th St
                        Bloomington, IN, 47408-3964
                        USA
        Email : tlonderg@indiana.edu
        Phone:
(+ 1) 812-855-9491

        Title:  The NuTeV Anomaly: Something Old? Something New?
        Abstract:
The NuTeV collaboration has measured both charged-
                        and neutral-current cross sections for neutrinos on iron. They
                        have extracted a value of the Weinberg angle that differs by 3
                        standard deviations from the best value obtained in EW reactions.
                       We will review possible explanations for this result, both within
                       and outside the Standard Model.
 

        Prof. Bruce MCKELLAR

       Address:
University of Melbourne
                       School of Physics
                       Vic 3010
                       AUSTRALIA

       Email: b.mckellar@ph.unimelb.edu.au
       Phone:
(+ 61 ) 3 - 8344 5122
 

       Title:  Harmonic Oscillator spectrum for glueball states in 2+1 D in large N limit
       Abstract:
Hamiltonian lattice gauge theory and analytic variational techniques are used
                           to calculate glueball masses for finite values of N < 26, in the SU(N) theory in 2 + 1
                           dimensions. The results are then extrapolated to infinite N, and a simple oscillator
                           spectrum is found in that limit.

 

        Dr Wally MELNITCHOUK

        Address:
Jefferson Lab
                        12000 Jefferson Avenue,
                        MS12H2,
                        Newport News, VA 23606,
                        USA
        Email: wmelnitc@jlab.org
        Phone: (+
1) 757 269 5854

        Title: Jefferson Lab Phenomenology: an overview
        Abstract:
I review some recent highlights from the experimental program at
                          Jefferson Lab, and their impact on our understanding of the structure
                          of hadrons. One of the most exciting developments of recent years
                          in hadronic physics has been the discovery of the Theta+ pentaquark.
                          I discuss the current status of pentaquark searches, as well as other
                          results from excited nucleon spectroscopy. The study of exclusive
                          reactions has provided some unexpected results for electromagnetic form
                          factors of the nucleon. As a byproduct, it has led to a re-evaluation of
                          the validity of the one-photon exchange approximation in electron-hadron
                          scattering. In inclusive scattering, I review the surprising findings
                          of a quark-hadron duality in both spin-averaged and spin-dependent
                          structure functions measured in the nucleon resonance and deep-inelastic
                          regions. Finally, I preview future plans for CEBAF at 12 GeV, and the
                          prospects of a high-luminosity polarised electron-ion collider.

 

        Dr Hirobumi MINEO

        Address:
National Taiwan University
                        1 Roosevelt road, Section 4, Taipei, Dept. of Physics,
                        Taiwan
        Email : mineo@phys.ntu.edu.tw
        Phone:
886 2-3366-5154

        Title: Generalized parton distributions of the nucleon based on the Faddeev approach to the NJL model
        Abstract:
Recently, there have been much theoretical studies on the generalized
                         parton distributions (GPDs). They contain
                         Information on the parton correlations and the internal spin structure of the
                         nucleon.. Some of the important properties of the GPDs are that that first
                         moments give the form factors and, in the forward limit they give back to
                         forward parton distributions. There are two approaches to model the nucleon
                        GPDs. One is using the Radyushkin^ %G $,3u= (B %@ ansatz to construct the nucleon GPDs
                         phenomenologically in terms of the forward parton distributions and meson
                        distribution amplitudes. Another approach is a direct calculation of nucleon
                        GPDs using quark models . For example, GPDs have been calculated with MIT bag
                        model, which does not respect chiral symmetry, and show a quite weak
                        xi-dependence. Calculation has also been performed with chiral quark soliton
                        model in large N_c limit. It should be noted that the resulting GPDs in the
                        latter model preserves the sum rules and !
                        positivity, while it is not the case in the bag model calculation. In this work
                        we calculate the nucleon GPDs in the NJL model based on the quark-diquark
                        Faddeev approach. The NJL model is an effective quark theory of low energy QCD,
                        and exhibits the spontaneous breaking of chiral symmetry. Since NJL model is a
                        field-theoretic one, the obtained GPDs will satisfy the sum rules. Previously
                        we have calculated forward parton distributions in the same approach, and
                        reproduced the qualitative features of forward parton distributions. In this
                        talk we will present our results for the nucleon GPDs and discuss their
                        xi-dependence.

 

          Prof. Hideo NAKAJIMA

          Address:
Utsunomiya University
                          Department of Information Science
                          Fac. of Engineering
                          7-1-2 Yoto, Utsunomiya
                         Tochigi Pref. 321-8585
                         
JAPAN
          Email: nakajima@is.utsunomiya-u.ac.jp
          Phone: (+
81)- 28-689-6245

          Title: Numerical Study of Lattice Landau Gauge QCD and the Gribov Copy Problem
          Abstract:
The infrared properties of lattice Landau gauge QCD of SU(3)
                           are studied by measuring gluon propagator, ghost propagator, QCD
                           running coupling and Kugo-Ojima parameter of $\beta=6.0,
                          16^4,24^4,32^4$ and $\beta=6.4, 32^4, 48^4, 56^4$
                           lattices. $\beta=6.4, 48^4$ and $56^4$ lattices allow measuring the
                           ghost propagator in the momentum range 0.48 GeV/c $\leq q\leq$ 14.6
                          GeV/c, and 0.41 GeV/c $\leq q\leq$ 14.6 GeV/c, respectively. By the
                          larger lattice measurements, it becomes clearer that (1) the infrared
                          singularity of gluon is weaker than the tree level, and it looks
                          approaching constant, and that of ghost is stronger than the tree
                          level, but weaker than $q^{-3}$, (2) the runnning coupling measured by
                          the product of the gluon dressing function and the ghost dressing
                          function squared has the maximum of about 1.2 at around $q=0.5$ GeV/c,
                          and behaves either approaching constant or even decreasing as $q$
                          approaches zero, and (3) magnitude of the Kugo-Ojima parameter is
                          getting larger but staying around $-0.8$ in contrast to the expected
                          value $-1$ in the continuum theory.

                         Gribov noise problem was studied by performing the fundamental modular
                         gauge (FMG) fixing with use of the parallel tempering method of
                         $\beta=2.2, 16^4$ SU(2) configurations. Findings are that the gluon
                         propagator almost does not suffer noises, but the Kugo-Ojima parameter
                         and the ghost propagator in the FMG becomes about 6 \% less in the
                         infrared region than those suffering noises. It is expected that these
                        qualitative aspects seen in SU(2) will reflect in the infrared
                        properties of SU(3) QCD as well.

 

        Mrs Maria PARAPPILLY

        Address:
The University of Adelaide
                        CSSM-Department of Physics and Mathematical Physics
                        5005, Adelaide
                       
AUSTRALIA
        Email: mparappi@physics.adelaide.edu.au
        Phone:
61 8 -83033424

 

        Prof Byung-Yoon  PARK
        Address: 
Chungnam National University
                         Department of Physics
                         Taejeon 305-764
                        
KOREA

         Email: bypark@cnu.ac.kr
         Phone:
82 42-821-6557

         Title: A unified approach to dense matter
         Abstract:
We present a summary of work done on dense hadronic matter, based on
                         the Skyrme model, which provides a unified approach to high density, valid in
                         the large N_c limit. In our picture, dense hadronic matter is described by the classical soliton
                         configuration with minimum energy for the given
                         baryon number density. By incorporating the meson fluctuations on
                         such ground state we obtain an effective Lagrangian for meson
                         dynamics in a dense medium. Our starting point has been the Skyrme
                         model defined in terms of pions, thereafter we have extended and
                         improved the model by incorporating other degrees of freedom such
                         as dilaton, kaons and vector mesons.
 

           Prof. Michael PENNINGTON

           Address:
University of Durham
                           Institute for Particle Physics Phenomenology,
                           Physics Department,
                           Durham DH1 3LE
                           UK
          Email: m.r.pennington@durham.ac.uk
          Phone: (+
44) 191 334 3668

          Title: Building bridges in strong physics
          Abstract:
The strong physics regime of QCD is responsible for confinement,
                          the hadron spectrum, dynamical symmetry breaking and the structure of
                          the QCD vacuum. The solution of these problems requires bridges to be built
                          connecting models to QCD,
                          connecting the lattice to the continuum,
                          connecting the unphysical to physics, and
                          connecting theory with experiment.

                         A sketch of these connections using the Schwinger-Dyson/
                         Bethe-Salpeter Equations will be given in an attempt to provide
                         insight into the strong physics regime of QCD.

           

          Dr  Michele PEPE

          Address: University of Bern
                          Institute of Theoretical Physics Sidlerstrasse 5
                          CH-3012 Bern
                           Switzerland
          Email:  pepe@itp.unibe.ch
          Phone: 
(+ 41) 31 631 86 21

          Title: The deconfinement phase transition in Yang-Mills theory with general gauge group G
          Abstract: We consider Yang-Mills theories with main sequence Lie groups G = SU(N),
                         SO(N), Sp(N) or with exceptional Lie groups G = G(2),
                         F(4), E(6), E(7), and E(8). The groups G(2), F(4), and E(8) have a trivial
                         center and need not have a deconfinement phase transition at all. As
                         conjectured by Svetistky and Yaffe, the deconfinement phase transition of
                         a (d+1)-dimensional Yang-Mills theory with gauge symmetry G is in the
                         universality class of a center(G)-symmetric d-dimensional spin model,
                         provided the transition is second order.
                         For  rank 1, i.e. for SU(2)=SO(3)=Sp(1), this is well established.
                         We have investigated the symplectic groups Sp(2)=SO(5) and Sp(3) finding
                         a first order phase transition in d=3. Hence, for rank 2, i.e. for SU(3),
                        Sp(2), and G(2), the Svetitsky-Yaffe conjecture does not apply. The same
                        is true for the rank 3 groups SU(4)=SO(6) and Sp(3), as well as for SU(6)
                       and SU(8) in d=3. We expect that in d=3 the Svetitsky-Yaffe conjecture
                       only applies to SU(2). Interestingly, for d=2 several groups lead to
                       second order phase transitions. Indeed, using a finite-size scaling
                       analysis, we confirm the Svetitsky-Yaffe conjecture beyond SU(N) groups,
                       namely for Sp(2). However, for Sp(3) Yang-Mills theory, we find again a
                       first order phase transition.
                       Based on these results, we conjecture that the size of the group - and
                       not the center symmetry - determines the order of the phase transition.

 

         Dr Alfredo RAYA

         Address: Universidad de Colima
                    
     Bernal Diaz del Castillo #340, Colonia Villa San Sebastian.
                    
     Colima, Colima, C. P. 28045
                     
    MEXICO
         Email
: raya@ucol.mx
         Phone:
( + 52) 312-316-1000 ext 48005

         Title: Fermion Propagator in quenched QED3 in the light of its Landau-Khalatnikov-Fradkin transformation
         Abstract:
We study the gauge dependence of the fermion propagator in
                       quenched QED3 with and without dynamical symmetry breaking in the
                       light of its Landau-Khalatnikov-Fradkin Transformation (LKFT). In the
                       former case, starting with the massive bare propagator in the Landau
                       gauge, we obtain non perturbative propagator in an arbitrary covariant
                       gauge. At the one-loop level it yields exact wavefunction
                       renormalization and correct $(\alpha \xi)$ terms for the mass
                       fu
nction. Also, we obtain valuable information for the higher order
                       perturbative expansion of the propagator. As for the case of
                       dynamical chiral symmetry breaking, we start by approximating the
                       numerical solution to the Schwinger-Dyson equation in Landau gauge in
                       the rainbow approximation in terms of analytic functions. We then LKF
                       transform this result to obtain the dynamically generated fermion
                       propagator in an arbitrary covariant gauge. We find that the results
                       obtained have nice qualitative features. We also extend this exercise
                       to the cases involving more reliable ansatze for the vertex and
                       encounter similar (and improved) qualitative features

 

        Prof. Hugo Reinhardt

        Address: Tuebungen University
                        Institut fuer Theoretische Physik
                        Auf der Morgenstelle 14
                        D-72076 Tuebingen
                        GERMANY
         Email: h.reinhardt@uni-tuebingen.de
         Phone:
( + 49) 70712978632

         Title: Quark and gluon confinement in Coulomb gauge
         Abstract:
The Yang-Mills Schrdinger equation is variationally solved
                        in Coulomb gauge for the vacuum sector using a trial wave functional,
                        which is strongly peaked at the Gribov horizon. We find the absence of
                        gluons in the infrared and also a confining quark potential.
 

        
        Dr Craig Roberts

        Address: Physics Division
                      Argonne National Laboratory
                      9700 South Cass Avenue
                     Argonne, IL 60439 - 4843
                     USA
         Email: cdroberts@anl.gov
         Phone:
(+ 1) 630 252 4095

         Title: Confinement, Dynamical Chiral Symmetry Breaking, Bound States, and the Quark-Gluon Vertex.
      
  Abstract: Dyson-Schwinger equations furnish a Poincare' covariant approach to
                       hadron physics. They reveal that dynamical chiral symmetry breaking
                       is tied to the long-range behaviour of the strong interaction and
                       make predictions corroborated by modern lattice-QCD simulations. A
                       hallmark in the contemporary use of DSEs is the existence of a
                       nonperturbative, symmetry preserving truncation that enables the
                       proof of exact results; e.g., the leptonic decay constant of every
                       pseudoscalar meson except the pion vanishes in the chiral limit.
                       Moreover, this scheme allows features of the dressed-quark-gluon
                       vertex and their role in the gap and Bethe-Salpeter equations to be
                       explored. It may be argued that quenched lattice data indicate the
                       existence of net attraction in the colour-octet projection of the
                       quark-antiquark scattering kernel. The presence of such attraction
                       impacts upon the uniformity with which solutions of truncated
                       equations converge pointwise to solutions of the complete gap a nd
                       vertex equations. For current-quark masses less than the scale set
                       by dynamical chiral symmetry breaking in the chiral limit, the
                      dependence of the dressed-quark-gluon vertex on the current-quark
                      mass is weak. A vertex model whose diagrammatic content is
                      explicitly enumerable enables the systematic construction of a
                      vertex-consistent Bethe-Salpeter kernel and thereby an exploration of
                      the consequences of net attraction in the colour-octet channel for
                      the strong interaction spectrum. With rising current-quark mass the
                      rainbow-ladder truncation provides an increasingly accurate estimate
                     of a bound state's mass. Furthermore, the splitting between vector
                     and pseudoscalar meson masses vanishes as the current-quark mass
                     increases. The absence of colour-antitriplet diquarks from the
                     strong interaction spectrum is contingent upon the net amount of
                     attraction in the colour-octet projected quark-antiquark scattering
                     kernel. There is a window within which diquarks appear. The am ount
                     of attraction suggested by lattice results is outside this domain.

 

          Prof. Gerrit Schierholz

          Address: DESY
                        Platanenallee 6
                       15738 Zeuthen
                       Germany
         Email: Gerrit.Schierholz@desy.de
         Phone:
(+ 49) 33762 77238

         Title: Lattice QCD: From Basics to Quark Masses
         Abstract:
After a brief introduction to lattice QCD, and a review of
                       recent developments in the field, I will present a truely unquenched
                       and nonperturbative determination of the light quark masses.

 

         Dr Edward Shuryak

         Address: State University of New York at Stony Brook
                         Department of Physics and Astronomy,
                         Stony Brook, NY, 11790
                         USA
         Email: shuryak@tonic.physics.sunysb.edu
         Phone:
631-6328127

         Title: The QCD Vacuum
         Abstract:
 In this introductory lecture we review the tools and results obtained
                    
      by non-perturbative methods about properties of the ground state of QCD.
                      
    It is a very complicated medium, made of virtual quarks and gluons, and
                      
     including complicated topological objects -- instantons, monopoles and
                       
    vortices. Since hadrons can be viewed as its collective excitations,
                      
     a lot of information -- in form of the so called vacuum condensates and
                     
     correlations functions -- can be deduced from experiment. We will emphasize
                      
    the phenomenon of chiral symmetry breaking, which is now understood in
                      
    significant details. As theoretical and numerical methods show, the instantons
                       
  play a leading role here. We will briefly review consequences of that
                       
  for hadronic structure.
 

           Dr Jonivar Skullerud

           Adress:  School of Mathematics
                   
       Trinity College
                     
     Dublin 2
                       
   IRELAND
           Email : jonivar@skullerud.name
           Phone:
353 1 608 3566

           Title: Quark-gluon vertex in arbitrary kinematics
           Abstract:
The vector part of the Landau-gauge quark-gluon vertex is
                           computed on the lattice for arbitrary kinematics, using an
                           O(a)-improved Wilson fermion action.

 

           Prof Josef  Speth

           Address: Institute Fuer Kernphysik
                     
      FZ-Juelich
                      
     D-52425 Juelich
                      
     Germany
           Email : j.speth@fz-juelich.de
           Phone:
(+ 49) 2461 614168
 

            Assoc. Prof. Hideo Suganuma

            Address: Faculty of Science
                        
    Tokyo Institute of Technology
                       
     Ohokayama 2-12-1,Meguro,
                       
     Tokyo 152-8551
                      
      Japan
            Email : suganuma@th.phys.titech.ac.jp
            Phone:
(+ 81) 3-5734-3546

            Title: Study of Quark Confinement in Baryons with Lattice QCD
            Abstract:
We study the ground-state three-quark (3Q) potential and the
                            excited-state 3Q potential using SU(3) lattice QCD. From the accurate
                            and thorough calculation for more than 300 different patterns of 3Q
                            systems, the static ground-state 3Q potential is found to be well
                            described by the Coulomb plus Y-type linear potential, i.e., Y-ansatz,
                            within 1%-level deviation. This fact indicates that quark confinement
                            in baryons is realized through the Y-type flux-tube formation among
                            quarks. With lattice QCD, we calculate also the excited-state
                            potential in the 3Q system, and find the gluonic excitation energy to
                            be about 1 GeV. This large gluonic-excitation energy would play an
                            essential role to the success of the quark model for the low-lying
                            hadrons in terms of the absence of the gluonic mode.
 

          Prof. Adam Szczepaniak

          Address: Department of Physics
                    
     Indiana University
                    
     Bloomington, IN 47405
                       
  USA
          Email : aszczepa@indiana.edu
          Phone:
812-855-3977

         Title: Flux tubes in the Coulomb gauge
         Abstract:
I will discuss aspects of confinement in the Coulomb gauge and patterns
                        of the gauge field distributions near static sources. Comparison with
                        lattice and phenomenological models will made and spectroscopy will be discussed.
 

           Dr Peter Tandy

           Address: Department of Physics
                        
   Kent State University
                        
   Kent, OH 44242
                        
   USA
           Email : tandy@cnr2.kent.edu
           Phone:
(+ 1) 330-672-2246

           Title: Nonperturbative QCD Phenomenology and Light Quark Physics
           Abstract:
We prresent recent results and developments in understanding
                           the extent to which nonperturbative QCD dynamics is reflected in
                           light quark meson physics. In particular, aspects dominated by
                          dynamical chiral symmetry breaking are emphasized.
 

           Prof Anthony Thomas

          Address: The University of Adelaide
                       
   CSSM-Department of Physics and Mathematical Physics
                      
    5005, Adelaide
                      
    AUSTRALIA
           Email : athomas@physics.adelaide.edu.au
           Phone:
(+ 61) 8 8303 3547

           Title: Fundamentals of Nuclear Physics
           Abstract :
The powerful combination of lattice QCD with modern chiral
                          extrapolation techniques is providing us with tremendous insight into
                          hadron structure. One of the fundamental questions for nuclear physics
                          is the extent to which this understanding can shed new light onto the
                          properties of nuclear matter - at high as well as normal densities. We
                          shall outline a recent advance which links the structure of the nucleon
                          with the saturation of nuclear matter. We also review recent
                          contributions to cosmology and physics beyond the Standard Model which
                          follow from the new and deeper understanding of how QCD works.
 

           Prof  E. Terry Tomboulis

           Address:  UCLA- University of California
                       
    Dept. of Physics and Astronomy
                        
   Box 951547
                        
   Los Angeles, CA 90095-1547
                        
   USA
           Email : tombouli@physics.ucla.edu
           Phone:
(+  1) 310 - 825 4674

           Title: RG decimations and confinement in SU(N) LGT
           Abstract:
Confinement in SU(N) LGT is studied via approximate RG
                          decimations that connect the short to long distance regimes. The
                          decimations turn out to provide both upper and lower bounds on the
                          exact partition function. This leads to a representation of the exact
                          partition function in terms of successive decimations whose effective
                          couplings flows are related to those of the computable approximate
                         decimations. The implications for a derivation of confinement from
                         first principles will be discussed.
 

          Dr Ping Wang

           Address: The University of Adelaide
                     
    CSSM-Department of Physics and Mathematical Physics
                    
     5005, Adelaide
                     
    AUSTRALIA
           Email : pwang@physics.adelaide.edu.au
           Phone:
(+ 61) 8 8303 3545

           Title: Hadronic matter at finite temperature and density
           Abstract:
We propose a chiral SU(3) quark mean field model and apply
                          it to the hadronic matter at finite temperature and density. The
                          liquid-gas phase transition of nuclear matter and strange hadronic
                          matter, comloub instability of finite nuclei and chiral symmetry
                          restoration are investigated in this model. The phase transition from
                          hadronic matter to quark matter are also discussed.
 

          Prof. Uwe-Jens Wiese

          Address: Institut fuer Theoretische Physik
                  
        Universitaet Bern
                  
        Sidlerstrasse 5
                   
       3012 Bern
                      
    Switzerland
           Email : wiese@itp.unibe.ch
           Phone:
(+ 41) 31 631 8504

           Title: Pions versus Magnons: From QCD to Antiferromagnets and Quantum Hall Ferromagnets
           Abstract:
The low-energy dynamics of pions and magnons are analogous
                          in many surprising ways. Pions couple to photons through the
                         Goldstone-Wilczek current representing the baryon number of
                         Skyrmions. This gives rise to the decay of the neutral pion into two
                         photons. Magnons in ferro- and antiferromagnets couple to a
                         Goldstone-Wilczek current for Baby-Skyrmions, which again induces
                         their decay into two photons. Photon-magnon conversion in a magnetic
                         field (the condensed matter analog of photon-axion conversion) may
                         shed some light on the mechanism for high-temperature
                         superconductivity. In QCD with more than two flavors the
                         Wess-Zumino-Witten term arises with a quantized prefactor --- the
                         number of colors N_c. In multi-layer quantum Hall ferromagnets an
                         analog of the Wess-Zumino-Witten term arises. Its prefactor is the
                         unquantized anyon statistics angle. Both Skyrmions and Baby-Skyrmions
                         can decay through electromagnetic interactions. For example, the
                         condensed matter an! alog of a monopole catalyzing baryon decay is a
                         charged wire transporting charge out of a magnet.
 

         Prof. Anthony Williams

         Address : The University of Adelaide
                        CSSM-Department of Physics and Mathematical Physics
                        5005, Adelaide
                        AUSTRALIA
         Email : Anthony.Williams@adelaide.edu.au
         Phone:
(+ 61) 8 8303 3546
 

         Title: On defining QCD nonperturbatively: lattice QCD, Dyson-Schwinger equations and BRST invariance
         Abstract:
While there is general agreement on the definition of
                         perturbative QCD, the relevant degrees of freedom,
                        quarks and gluons, have no corresponding aymptotic states.
                        In order to define QCD, one must define it nonperturbatively.
                        Lattice, Dyson-Schwinger equation, and BRST definitions
                        are all fundamentally different definitions of nonperturbative
                       QCD in their standard implementations. This difference has its
                       origins in how gauge-fixing is implemented and in how Gribov
                       copies are treated. An overview of these issues will be
                       presented and the implications discussed.

 

            Dr Stewart Wright

           Address :  Division of Theoretical Physics
                          
   Department of Mathematical Sciences
                         
    The University of Liverpool
                         
    Liverpool, L69 3BX
                         
    U.K.
           Email : svwright@liv.ac.uk
           Phone:
(+ 44) 151 794 3778

           Title : The Pseudoscalar Decay Constant
           Abstract :
Recent results will be presented from the UKQCD collaboration in
                           calculating the pseudoscalar decay constant in Lattice QCD. The
                           discussion will include issues and insights gained from investigating the
                           extrapolation and interpolation to the pion and kaon experimental points.
 

              Dr Ross Young

              Address : The University of Adelaide
                             CSSM-Department of Physics and Mathematical Physics
                             5005, Adelaide
                             AUSTRALIA
              Email : ryoung@physicsl.adelaide.edu.au
              Phone :
(+ 61)  8303 3428
 

              Title : Finite Range Regularisation of Chiral Effective Field Theory
               Abstract : I will review the renormalization procedure connecting the
                                unrenormalized parameters of finite-range regularised (FRR) chiral
                                effective field theory with the low-energy constants of
                                dimensionally-regulated chiral perturbation theory. After
                                highlighting the improved convergence properties of the FRR expansion,
                                focus will be placed on results from recent lattice simulations of
                                quenched QCD where unmistakeable signatures of quenched chiral
                                nonanalytic behaviour has been observed. Here the magnetic moment of
                                the Delta+ baryon is of particular interest. Finally, methods to
                                quantitatively estimate the corrections anticipated upon unquenching
                                the simulations will be presented, with specific applications to the
                                low-lying baryon mass spectrum and octet-baryon magnetic moments.

 

             Dr Valentin Zakharov

             Address : MPI-Max-Planck Institut fuer Physik
                            Werner-Heisenberg Institut
                            Foehringer Ring 6
                            80805 Muenchen
                            Germany
             Email : xxz@mppmu.mpg.de
             Phone:
(+ 49) 89 32 354 238

             Title : Non-perturbative match of ultraviolet renormalon
             Abstract :
The paper is motivated by observation of a kind of branes in
                             the vacuum state of the lattice SU(2) gluodynamics. The branes
                             represent two-dimensional vortices whose total area scales in physical
                             units while the non-Abelian action diverges in the ultraviolet. We
                             consider the question whether effects of the branes can be
                             accommodated into the continuum theory. We demonstrate that at least
                             in case of the gluon condensate (plaquette action) and of the heavy
                             quark potential the contribution of the branes corresponds to the
                             ultraviolet renormalon. Thus, the vortices might represent a
                             non-perturbative match of the ultraviolet renormalon. Such an
                            identification constrains, in turn, properties of the branes.
 

          Dr Jianbo Zhang

          Address : The University of Adelaide
                       
    CSSM-Department of Physics and Mathematical Physics
                        
   5005, Adelaide
                        
  AUSTRALIA
          Email : jzhang@physics.adelaide.edu.au
          Phone:
(+ 61) 8-83033544

          Title: The Scaling behavior of the overlap quark propagator in Landau gauge
          Abstract:
The properties of the momentum space quark propagator in
                         Landau gauge are examined for the overlap quark action in quenched
                         lattice QCD. Numerical calculations are done on three lattices with
                         different lattice spacings and similar physical volumes to explore the
                         approach of the quark propagator towards the continuum limit. We have
                         calculated the nonperturbative momentum-dependent wavefunction
                         renormalization function $Z(p)$ and the nonperturbative mass function
                        $M(p)$ for a variety of bare quarks masses and perform a simple linear
                        extrapolation to the chiral limit. We find the behavior of $Z(p)$ and
                        $M(p)$ are in reasonable agreement between the two finer lattices in
                        the chiral limit, however the data suggest that an even finer lattice
                        is desirable. The large momentum behavior is examined in terms of the
                        quark condensate.
 

          Dr Daniel Zwanziger

          Address: Physics Department
                       
  New York University
                       
  4 Washington Place
                       
  New York, NY 10003
                      
    USA
           Email : daniel.zwanziger@nyu.edu
           Phone:
(+ 1) 212-998-7732

           Title: Gauss's law, boundary conditions, color-confinement
           Abstract:
We discuss discuss Gauss's law and the boundary conditions
                          that hold in the hamiltonian formulation of QCD in the Coulomb
                          gauge. We develop a Schwinger-Dyson type calculation scheme, and
                          present a simple calculation of the color-Coulomb potential.
 

 

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