nLab quark-meson coupling model

Contents

matter field fermions (spinors, Dirac fields)

flavors of fundamental fermions in the standard model of particle physics:
generation of fermions	1st generation	2nd generation	3d generation
quarks ( $q$ )
up-type	up quark ( $u$ )	charm quark ( $c$ )	top quark ( $t$ )
down-type	down quark ( $d$ )	strange quark ( $s$ )	bottom quark ( $b$ )
leptons
charged	electron	muon	tauon
neutral	electron neutrino	muon neutrino	tau neutrino

bound states:
mesons	light mesons: pion ( $u d$ ) ρ-meson ( $u d$ ) ω-meson ( $u d$ ) f1-meson a1-meson	strange-mesons: ϕ-meson ( $s \bar s$ ), kaon, K-meson ( $u s$ , $d s$ ) eta-meson ( $u u + d d + s s$ ) charmed heavy mesons*: D-meson ( $u c$ , $d c$ , $s c$ ) J/ψ-meson ( $c \bar c$ )	bottom heavy mesons: B-meson ( $q b$ ) ϒ-meson ( $b \bar b$ )
baryons	nucleons: proton $(u u d)$ neutron $(u d d)$

hadrons (bound states of the above quarks)

bosinos:

dark matter candidates

Exotica

auxiliary fields

Idea

In nuclear physics, the quark-meson coupling model is an effective field theory of nuclei where effective meson-fields are coupled to quark fields.

This is on contrast to quantum hadrodynamics of the form of baryon chiral perturbation theory, such as the Walecka model, where the effective fermion fields are instead the baryons (i.e. the confined bound states of three constituent quarks) with no isolated quarks appearing explicitly.

D. Ebert, T. Feldmann, R. Friedrich, H. Reinhardt, Effective Meson Lagrangian with Chiral and Heavy Quark Symmetries from Quark Flavor Dynamics, Nucl.Phys. B434 (1995) 619-646 (arXiv:hep-ph/9406220)
P. A. M. Guichon, K. Saito, E. Rodionov, A. W. Thomas, The role of nucleon structure in finite nuclei, Nucl. Phys. A601:349-379, 1996 (arXiv:nucl-th/9509034)
K. Saito, K. Tsushima, A. W. Thomas, Variation of hadron masses in finite nuclei, Phys. Rev. C 55, 2637 (1997) (doi:10.1103/PhysRevC.55.2637)

Koichi Saito, Relationship between Quark-Meson Coupling Model and Quantum Hadrodynamics, Prog. Theor. Phys. 108 (2002) 609-614 (arXiv:nucl-th/0207053)

Last revised on May 12, 2020 at 15:39:23. See the history of this page for a list of all contributions to it.