English

Double Counting Ambiguities in the Linear Sigma Model

High Energy Physics - Phenomenology 2008-11-26 v1

Abstract

We study the dynamical consequences imposed on effective chiral field theories such as the quark-level SU(2) linear σ\sigma model (Lσ\sigmaM) due to the fundamental constraints of massless Goldstone pions, the normalization of the pion decay constant and form factor, and the pion charge radius. We discuss quark-level double counting Lσ\sigmaM ambiguities in the context of the Salam-Weinberg Z=0Z = 0 compositeness condition. Then SU(3) extensions to the kaon are briefly considered.

Keywords

Cite

@article{arxiv.hep-ph/9709274,
  title  = {Double Counting Ambiguities in the Linear Sigma Model},
  author = {A. Bramon and Riazuddin and M. D. Scadron},
  journal= {arXiv preprint arXiv:hep-ph/9709274},
  year   = {2008}
}

Comments

23 pages To be published in Journal of Physics G

R2 v1 2026-07-22T14:39:19.880Z