Results 1 to 10 of about 21,627,885 (312)
Nonperturbative partonic quasidistributions of the pion from chiral quark models
Physics Letters B, 2017 We evaluate nonperturbatively the quark quasidistribution amplitude and the valence quark quasidistribution function of the pion in the framework of chiral quark models, namely the Nambu–Jona-Lasinio model and the Spectral Quark Model.
Wojciech Broniowski +1 more
doaj +5 more sources
Zeitschrift für Physik C Particles and Fields, 1994 We construct an effective Lagrangian for low energy hadronic interactions through an infinite expansion in inverse powers of the low energy cutoff $\Lambda_\chi$ of all possible chiral invariant non-renormalizable interactions between quarks and mesons ...
A. Manohar +19 more
core +8 more sources
Investigating Fully Strange Tetraquark System with Positive Parity in a Chiral Quark Model [PDF]
Universe, 2023 Motivated by the intriguing discovery of X(6900) by the LHCb collaboration, we undertake a comprehensive study of the ss¯ss¯ tetraquark system with positive parity, employing the Gaussian expansion within the chiral quark model method.
Yue Tan +3 more
doaj +2 more sources
Pramana, 2003 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.
A Ali +30 more
core +4 more sources
Nucleon quark distributions in a covariant quark-diquark model [PDF]
, 2005 Spin-dependent and spin-independent quark light-cone momentum distributions and structure functions are calculated for the nucleon. We utilize a modified Nambu-Jona-Lasinio model in which confinement is simulated by eliminating unphysical thresholds for ...
A.W. Thomas +41 more
core +2 more sources
Quark-meson coupling model with short-range quark-quark interactions [PDF]
Progress of Theoretical Physics, 2000 Short-range quark-quark correlations are introduced into the quark-meson coupling (QMC) model phenomenologically. We study the effect of the correlations on the structure of the nucleon in dense nuclear matter.
Saito, Koichi, Tsushima, Kazuo
core +3 more sources
Fully Heavy Tetraquark Spectroscopy in the Relativistic Quark Model [PDF]
Symmetry, 2022 Masses of the ground and excited (1P, 2S, 1D, 2P, 3S) states of the fully heavy tetraquarks, composed of charm (c) and bottom (b) quarks and antiquarks, are calculated in the diquark–antidiquark picture within the relativistic quark model based on the ...
R. Faustov, V. Galkin, E. M. Savchenko
semanticscholar +1 more source
Heavy Tetraquarks in the Relativistic Quark Model [PDF]
Universe, 2021 We give a review of the calculations of the masses of tetraquarks with two and four heavy quarks in the framework of the relativistic quark model based on the quasipotential approach and QCD.
R. Faustov, V. Galkin, E. M. Savchenko
semanticscholar +1 more source
Relativistic corrections to decays of heavy baryons in the quark model [PDF]
Physical Review D, 2021 We investigate relativistic corrections of an order 1 /m 2 , where m is the constituent quark mass, to heavy baryon decays by emitting one pseudoscalar meson in the quark model.
A. Arifi, Daiki Suenaga, A. Hosaka
semanticscholar +1 more source
Tetra- and Penta-Quark Structures in the Constituent Quark Model [PDF]
Symmetry, 2020 With the development of high energy physics experiments, a large amount of exotic states in the hadronic sector have been observed. In order to shed some light on the nature of the tetraquark and pentaquark candidates, a constituent quark model, along ...
Gang Yang, J. Ping, J. Segovia
semanticscholar +1 more source