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<font color="#000099"><b><font color="#3333ff">Physics Seminar <br>
Friday, Oct. 2, 2009<br>
11:00AM<br>
CEBAF Center AUD.<br>
Cookies & Coffee at 10:45 AM<br>
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<font face="Times New Roman, Times, serif"><b><font color="#cc0000">Anthony
Thomas
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Jefferson Lab
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"The Weinberg Angle and Possible New Physics Beyond the Standard Model"</font></b></font>
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The Standard Model provides remarkably precise predictions for the
dependence of the strength of parity violating weak interactions on the
energy-momentum scale. Any significant deviation from these predictions
therefore gives us a glimpse into the world of new physics, long
believed to exist beyond the Standard Model. We discuss the current
status of the tests of the Standard Model predictions. This includes an
outline of what has been achieved at JLab. However, the focus is on
recent developments concerning the measurements of neutrino deep
inelastic scattering at Fermilab, which have provided the major
evidence of possible new physics in this area in the past decade. We
shall see that fundamental discoveries concerning charge symmetry
violation in parton distributions as well as a novel feature of nuclear
structure functions resolve this long-standing anomaly.
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Upcoming Physics Seminars:
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Nov. 12 - Jenny Thomas (University College London)
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Nov. 20 - Jacques Soffer (Temple University)<br>
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