BaBar results on e+e- --> ppbar by means of initial state radiation

Details BaBar results on e+e- --> ppbar by means of initial state radiation BaBar results on e+e- --> ppbar by means of initial state radiation

2005-12-14

arxiv.org/abs/hep-ph/0512183v1

PoS HEP2005:285,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at EPS International Europhysics Conference on High Energy Physics (HEPP-EPS 2005), Lisbon, Portugal, 21-27 Jul 200

Scientific paper

BaBar has measured with unprecedented accuracy the e+e- --> ppbar cross
section from the threshold up to Q^2 ~ 20 GeV^2/c^4, finding out an unexpected
cross section, with plateaux and negative steps. Evidence for a ratio
|G_E/G_M|>1 has also been found as well as a sudden variation in |G_M| just
above the threshold.

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