학술논문
Baryon Form Factors at Threshold
Document Type
Article
Source
Subject
*BARYONS
*NUCLEAR counters
*NUCLEAR cross sections
*DATA analysis
*FERMIONS
*PROTONS
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*
*
*
*
Language
ISSN
0920-5632
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. [ABSTRACT FROM AUTHOR]