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<div>Theory Center Seminar<br>
Mon., May 19, 2014<br>
1:00 p.m. (coffee at 12:45 p.m.)<br>
CEBAF Center, Room F224/225<br>
<br>
Vladimir Braun<br>
University of Regensburg<br>
<br>
<b>Nucleon Electromagnetic Form Factors and Wave Functions: A
Theory Reappraisal</b></div>
<br>
I review the progress in the understanding of the nucleon structure
on a wave function level from the studies of electromagnetic form
factors<br>
at large momentum transfers in the light-cone sum rule method and
first-principles calculations in the lattice version of quantum <br>
chromodynamics. A consistent picture emerges, for the first time,
with one valence quark carrying about 40% of the total momentum and<br>
the rest shared equally by the remaining two quarks. Exploratory
studies of the wave functions of negative parity resonances are also
presented.
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