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DESCRIPTION:Tanja Horn\, JLAB\n\nThe pion charge form factor\, F `
0\; \, is the fundamental interest in the study of the quark-gluon s
tructure of hadrons. The relatively simple < qq > valence structure makes
the pion an ideal test case for all models of hadronic structure. Experi
mentally\, the measurement of the pion form factor poses special challenge
s. The technique utilizes a precision Rosenbluth seperation of the p(e\,e
' π\; + )n reaction at low -t. F π\; is
then extracted from the separated σ L cross sections with
the aid of a model. Over the past several years\, we have carried out tw
o experiments at Jefferson Lab (JLab) to measure F π\; ov
er a kinematic range of Q 2 = 0.6-2.45 GeV 2 . T
hese measurements are planned to be extended to higher Q 2 wi
th the completion of the JLab 12 GeV upgrade. These data would challenge
QCD based calculations in the most rigorous manner. The recent JLab resu
lts will be presented and compared to a variety of model calculations\, an
d the future outlook will be discussed.\n
DTSTART:20070925T193000Z
LOCATION:Physics Building\, Room 204
SUMMARY:The pion form factor
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