侧向色散关系与核子顶点的结构
核理论
2011-08-17 v1
摘要
我们重访侧向色散关系,将其作为把核子离壳形状因子与可观测量即介子-核子散射相移相联系的方法。表明对于介子-核子散射,中间场的重新定义使散射振幅不变,但改变通过色散关系表达的离壳形状因子的行为,从而显示表示相关性。我们还采用耦合道幺正模型,检验关于非弹性道在侧向色散关系方法中影响的近似的有效性。
引用
@article{arxiv.nucl-th/9603031,
title = {Sidewise dispersion relations and the structure of the nucleon vertex},
author = {R. M. Davidson and G. I. Poulis},
journal= {arXiv preprint arXiv:nucl-th/9603031},
year = {2011}
}
备注
29 pages. Uuencoded gz-compressed tar file; includes RevTeX source plus 3 postscript figures incorporated with epsfig.sty plus 3 LaTeX figures using eepic.sty (included). Complete postscript file available via WWW at http://www.nikhefk.nikhef.nl/projects/Theory/preprints/preprints.html