Article ID Journal Published Year Pages File Type
1845546 Nuclear Physics B - Proceedings Supplements 2012 5 Pages PDF
Abstract

An extensive study of the BaBar cross section data is presented. Two unexpected outcomes have been found: the modulus of the proton form factor is normalized to one at threshold, i.e.: , as a pointlike fermion, and the resummation factor in the Sommerfeld formula is not needed. Other e+e− → baryon-antibaryon cross sections show a similar behavior near threshold.

Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics