Results 1 to 10 of about 10,075 (182)

Extended Nambu–Jona-Lasinio model for quark and nuclear matters

open access: diamondPhysics Letters B
In this work, we extend the two-flavor Nambu–Jona-Lasinio model to one capable of exploring quark and nuclear matter consistently. With an extra term standing for quark-nucleon interactions, nucleons could automatically emerge as color-singlet three ...
Gaoqing Cao
doaj   +2 more sources

Pion generalized parton distributions and light-front wave functions in the Nambu–Jona-Lasinio model

open access: yesNuclear Physics B, 2021
Pion generalized parton distributions and light-front wave functions are investigated in the framework of Nambu–Jona-Lasinio model. The properties of pion generalized parton distributions and light-front wave functions are examined separately. Proceeding
Jin-Li Zhang   +3 more
doaj   +1 more source

Saturation properties of nuclear matter in a relativistic mean field model constrained by quark dynamics [PDF]

open access: yes, 2006
We have built an effective Walecka-type hadronic Lagrangian in which the hadron masses and the density dependence of the coupling constants are deduced from the quark dynamics using a Nambu-Jona-Lasinio model.
Caillon, J. C.   +2 more
core   +8 more sources

Two-current correlations in the pion in the Nambu and Jona-Lasinio model

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We present an analysis of two-current correlations for the pion in the Nambu–Jona-Lasinio model, with Pauli–Villars regularization. We provide explicit expressions in momentum space for two-current correlations corresponding to the zeroth component of ...
Aurore Courtoy   +2 more
doaj   +1 more source

QCD critical end point and baryon number fluctuation

open access: yesHe jishu, 2023
One of the main goals of relativistic heavy-ion collision (HIC) is to search for the critical end point (CEP) of quantum chromodynamics (QCD), and distribution of the net-proton number from experimental measurements shows non-monotonic behavior, which ...
XU Kun, HUANG Mei
doaj   +1 more source

Meson production in e+e- annihilation and tau lepton decays within extended NJL model [PDF]

open access: yesEPJ Web of Conferences, 2019
The Nambu–Jona-Lasinio model is applied to describe processes of electron-positron annihilation into mesons at center-of-mass energies below 2GeV and hadronic decays of tau leptons. Contributions of intermediate scalar, vector, and axial-vector mesons in
Arbuzov Andrej   +3 more
doaj   +1 more source

Search of QCD phase transition points in the canonical approach of the NJL model

open access: yesPhysics Letters B, 2019
We study the Lee-Yang zeros in the canonical approach to search phase transition points at finite temperature and density in the Nambu-Jona-Lasinio (NJL) model as an effective model of QCD.
Masayuki Wakayama, Atsushi Hosaka
doaj   +1 more source

Two regularizations - two different models of Nambu-Jona-Lasinio [PDF]

open access: yes, 2004
Two variants of the Nambu--Jona-Lasinio model -- the model with 4-dimensional cutoff and the model with dimensionally-analytical regularization -- are systematically compared.
E. N. Nikolov   +11 more
core   +3 more sources

Nonperturbative partonic quasidistributions of the pion from chiral quark models

open access: yesPhysics 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   +1 more source

Chiral symmetry restoration with three chiral partners

open access: yesSciPost Physics Proceedings, 2022
I discuss the masses of chiral partners in the context of chiral symmetry restoration at finite temperature. Using the Nambu–Jona-Lasinio model I first remind the usual situation where two mesons of opposed parity become degenerate above the chiral ...
Juan M. Torres-Rincon
doaj   +1 more source

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