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大N_C共振理论中的手征耦合消失

高能物理 - 唯象学 2008-11-26 v2

作者: Jorge Portoles , Ignasi Rosell , Pedro Ruiz-Femenia

在 arXiv 上查看 ↗ PDF ↗ DOI ↗

摘要

构建涉及强子的共振理论需要将更高能标的信息纳入有效拉格朗日量的耦合常数中。我们考虑包含标量和赝标量的大Nc手征共振理论,并发现,通过对该理论中构建的QCD流形状因子施加领头阶短距离约束,手征低能常数在1/Nc展开的次领头阶满足共振饱和。

关键词

large-Nc resonance theory chiral couplings short-distance constraints form factors resonance saturation 1/Nc expansion

引用

@article{arxiv.hep-ph/0611375,
  title  = {Vanishing chiral couplings in the large-N_C resonance theory},
  author = {Jorge Portoles and Ignasi Rosell and Pedro Ruiz-Femenia},
  journal= {arXiv preprint arXiv:hep-ph/0611375},
  year   = {2008}
}

备注

5 pages, 2 figures. Version published in Physical Review D. Some equations to facilitate the discussion have been added