English

A New Mass Formula for NG Bosons in QCD

High Energy Physics - Phenomenology 2009-10-28 v3 Nuclear Theory

Abstract

An often used mass formula for Nambu-Goldstone (NG) bosons in QCD, such as the pions, involves the condensate <qq><\overline{q}q>, fπf_{\pi} and the quark current masses. We argue, within the context of the Global Colour Model to QCD, that this expression is wrong. Analysis of the interplay between the Dyson-Schwinger equation for the constituent quark effect and the Bethe-Salpeter equation for the NG boson results in a new mass formula.

Keywords

Cite

@article{arxiv.hep-ph/9507268,
  title  = {A New Mass Formula for NG Bosons in QCD},
  author = {Reginald T. Cahill and Susan M. Gunner},
  journal= {arXiv preprint arXiv:hep-ph/9507268},
  year   = {2009}
}

Comments

Minor correction. Extended text incl. appendix