publication . Preprint . 2013

Role of current quark mass dependent multi-quark interactions in low lying meson mass spectra

Osipov, A. A.; Hiller, B.; Blin, A. H.;
Open Access English
  • Published: 16 Apr 2013
Abstract
We call attention to a class of current-quark mass dependent multi-quark interaction terms which break explicitly the chiral $SU(3)_L\times SU(3)_R$ and $U_A(1)$ symmetries. They complete the set of effective quark interactions that contribute at the same order in $N_c$ as the 't Hooft flavor determinant interaction and the eight quark interactions in the phase of spontaneously broken chiral symmetry. The $N_c$ classification scheme matches the counting rules based on arguments set by the scale of spontaneous chiral symmetry breaking. Together with the leading in $N_c$ four quark Nambu-Jona-Lasinio Lagrangian and current quark mass matrix, the model is apt to ac...
Subjects
arXiv: High Energy Physics::PhenomenologyHigh Energy Physics::LatticeHigh Energy Physics::ExperimentNuclear Theory
free text keywords: High Energy Physics - Phenomenology
Funded by
FCT| CERN/FP/116334/2010
Project
CERN/FP/116334/2010
Effective field theory with many-fermion interactions.
  • Funder: Fundação para a Ciência e a Tecnologia, I.P. (FCT)
  • Project Code: 116334
  • Funding stream: 5876-PPCDTI
,
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
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