Ross Young
(Jefferson Lab., USA)
Thursday, July 5th
Seminar Room, First Floor, Physics, University of Adelaide
Testing the Standard Model by precision measurement of the weak charges of quarks
The Standard Model has been enormously successful at predicting the outcomes of experiments in nuclear and particle physics. The search for new physical phenomena and a fundamental description of nature which goes beyond the Standard Model is driven by two complementary experimental strategies. The first is to build increasingly energetic colliders, such as the Large Hadron Collider (LHC) at CERN, which aim to excite matter into a new form. The second, more subtle approach, is to do precision measurements at moderate energies, where an observed discrepancy with the Standard Model will reveal the signature of these new forms of matter. Here we demonstrate that the latest measurements of the electroweak force severely constrain the possibility of physics beyond the Standard Model to above the TeV energy scale.