Final-state interaction correction to the electromagnetic nucleon form factors in the time-like region

被引：0

作者：

Van de Wiele J. ^{[1
]}

Ong S. ^{[1
]}

机构：

[1] Institut de Physique Nucléaire d’Orsay (UMR 8608), IN2P3-CNRS, Université de Paris-Sud, Orsay Cedex

来源：

European Physical Journal A | 2015年 / 51卷 / 10期

关键词：

Covariant - Electromagnetics - Energy dependence - Final-state interactions - Form factors - Free parameters - Interaction corrections - Nucleon form factors - Proton electromagnetic form factors;

D O I：

10.1140/epja/i2015-15125-9

中图分类号：

学科分类号：

摘要：

We study the strong energy dependence of the proton electromagnetic form factors in the time-like region, taking into account the one-pion-exchange final-state interaction in a covariant way. This effect is quantified in terms of the corrected Dirac F1 and Pauli F2 form factors and in the commonly used electric GE and magnetic GM ones. Our results on the ratio |GE/GM depend only on the values of two free parameters and allow significant comparisons with the BaBar data. © 2015, SIF, Springer-Verlag Berlin Heidelberg.

引用

页数：8

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