منابع مشابه
Chiral Quark Model
Abstract. In this talk I review studies of hadron properties in bosonized chiral quark models for the quark flavor dynamics. Mesons are constructed from Bethe–Salpeter equations and baryons emerge as chiral solitons. Such models require regularization and I show that the two–fold Pauli–Villars regularization scheme not only fully regularizes the effective action but also leads the scaling laws ...
متن کاملTetraquarks in a chiral constituent quark model
We analyze the possibility of heavy-light tetraquark bound states by means of a chiral constituent quark model. The study is done in a variational approach. Special attention is paid to the contribution given by the different terms of the interacting potential and also to the role played by the different color channels. We find a stable state for both qqc̄c̄ and qqb̄b̄ configurations. Possible deca...
متن کاملBaryons in a Chiral Constituent Quark Model
In the low-energy regime light and strange baryons should be considered as systems of constituent quarks with confining interaction and a chiral interaction that is mediated by Goldstone bosons as well as by vector and scalar mesons. The flavorspin structure and sign of the short-range part of the spin-spin force reduces the SU(6)FS symmetry down to SU(3)F × SU(2)S , induces hyperfine splitting...
متن کاملChiral Quark Model of Mesons
We study SU(3)L×SU(3)R chiral quark model of mesons up to next leading order of 1/Nc expansion. Composite vector and axial-vector mesons resonances are introduced via non-linear realization of chiral SU(3) and vector meson dominant. Effects of one-loop graphs of pseudoscalar, vector and axial-vector mesons is calculated systematically and the significant results are obtained. Correction of effe...
متن کاملThe Dilated Chiral Quark Model
It is argued that constituent quarks live in an effective theory that possesses an approximate conformal invariance. An effective lagrangian is constructed which in the large-Nc approximation incorporates Regge asymptotic constraints. The resulting picture explains why linear-sigma models provide successful constituent quark descriptions, both at zero and finite temperature. Our analysis sugges...
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ژورنال
عنوان ژورنال: Physical Review C
سال: 2006
ISSN: 0556-2813,1089-490X
DOI: 10.1103/physrevc.73.025207