[Theory-seminars] Seminar on Friday Jan 4, 1 p.m.

[Alexei Prokudin]

Dear all,

we have a Theory Center Seminar on Friday 4th of January
CEBAF Center, Room L104
1 p.m.

Speaker: Jeremy Green (MIT)

Title: Nucleon structure near the physical pion mass

Abstract: Lattice QCD calculations of nucleon structure using pion 
masses as low as 149 MeV will be presented. Because of work done to 
reduce excited-state contaminations, the results agree with experiment 
for four key isovector observables: the Dirac and Pauli radii, the 
magnetic moment, and the quark momentum fraction; however, a discrepancy 
remains for the axial charge, and evidence suggesting a likely cause 
will be shown. Understanding these sources of error helps to increase 
confidence in predictions of the tensor and scalar charge, which will 
also be presented.


A complete list of upcoming theory seminars and talks from previous
seminars is available from:
http://www.jlab.org/div_dept/theory/seminars/

Alexei, Alvaro and Carlos
JLab Theory Seminar Organizers