[Theory-seminars] Theory seminar today

[vguzey at jlab.org]

Dear all,

This is a reminder that we have a seminar today:

  Monday, Nov 29th
  1pm (coffee at 12:45)
  Room L104

 Hadronic Parity Violation

 Barry Holstein (University of Massachusetts Amherst)

 The subject of parity violation in strong and electromagnetic interactions
 due to the presence of the weak force has been studied now for more than
 fifty years. However, despite a great deal of experimental and theoretical
 effort in this regard, our understanding of such effects remains cloudy.
 There are a number of reasons for this. One is that in contrast to the
 parity-conserving situation, where there are only two fundamental
 constants (scattering lengths) which describe the NN interaction, in the
 parity-violating case there are five. Also, for the past thirty years
 nearly all such processes have been described within the model-dependent
 DDH meson-exchange model. Recently effective field theoretic techniques
 have been developed in order to ameliorate the latter problem and a series
 of high precision experiments has been undertaken in order to address the
 former. A review of both the experimental and theoretical situations will
 be presented.


                         Vadim, Christopher, and Hiroyuki
                         JLab Theory Seminar Organizers
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