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

R. Baldini Ferroli
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Abstract

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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R. Baldini Ferroli. 2005-12-14. BaBar results on e+e- --> ppbar by means of initial state radiation. https://arxiv.org/abs/hep-ph/0512183

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