Masses of the lowest spin-0 and spin-1 meson nonets: explicit symmetry breaking effects

Abstract

We extend a known multi-quark three-flavor Lagrangian of the Nambu-Jona-Lasinio type, which includes a set of effective interactions proportional to the current quark masses, to include the multi-quark interactions of vector and axial-vector types. It is shown that the mass spectrum of the four low-lying meson nonets are in agreement with current phenomenological expectations. The role of the new interactions is analyzed in detail.

41 pages, 4 tables; typos have been corrected and a new section has been added

References in corpus (10)

• Critical endpoint in the Polyakov-loop extended NJL model
• Effects of eight-quark interactions on the hadronic vacuum and mass spectra of light mesons
• Chiral phase transition in an extended NJL model with higher-order multi-quark interactions
• Two-solar-mass hybrid stars: a two model description with the Nambu-Jona-Lasinio quark model
• Low-lying even parity meson resonances and spin-flavor symmetry
• Lowering the critical temperature with eight-quark interactions
• On different lagrangian formalisms for vector resonances within chiral perturbation theory
• OZI violating eight-quark interactions as a thermometer for chiral transitions
• Strange quark matter in the presence of explicit symmetry breaking interactions
• SU(2) higher-order effective quark interactions from polarization

Cited by in corpus (4)

• Quark matter in light neutron stars
• Hybrid stars with large strange quark cores constrained by GW170817
• A general framework to diagonalize vector--scalar and axial-vector--pseudoscalar transitions in the effective meson Lagrangian
• Quark-antiquark states of the lightest scalar mesons within the Nambu-Jona-Lasinio model with flavor-dependent coupling constants