Optimized-Variational Quark Mass Expansion and Dynamical Chiral Symmetry Breakdown

J. -L. Kneur

Optimized-Variational Quark Mass Expansion and Dynamical Chiral Symmetry Breakdown

High Energy Physics - Phenomenology 2007-05-23 v1

Authors: J. -L. Kneur

Abstract

A recently proposed variational mass expansion approach to dynamical chiral symmetry breakdown is reviewed. We briefly explain how a specific integral ansatz over the analytically continued, arbitrary Lagrangian mass parameter, resums the usual variational mass expansion (``delta-expansion".) The construction is then generalized to obtain non-perturbative expressions for the order parameters of the $SU(n_f)_L \times SU(n_f)_R$ breakdown ( $n_f =$ 2 or 3), in QCD. Emphasis is put on some general aspects as well as possible limitations of this approach.

Keywords

chiral symmetry breaking variational methods quark condensate QCD non-perturbative

Cite

@article{arxiv.hep-ph/9610351,
  title  = {Optimized-Variational Quark Mass Expansion and Dynamical Chiral Symmetry Breakdown},
  author = {J. -L. Kneur},
  journal= {arXiv preprint arXiv:hep-ph/9610351},
  year   = {2007}
}

Comments

5 pages, LaTex, using stwol.sty, no figures. Talk given at the 28th ICHEP, 25-31 July 1996, Warsaw, Poland, to appear in the proceedings

Optimized-Variational Quark Mass Expansion and Dynamical Chiral Symmetry Breakdown

Abstract

Keywords

Cite

Comments

Related papers