Results 11 to 20 of about 21,261,020 (311)
Zeitschrift für Physik C Particles and Fields, 1995 41 pages, 11 figures, preprint ROM2F 93 ...
Elisabetta Pallante, Roberto Petronzio
core +11 more sources
Pramana, 2003 Talk presented at the workshop QCD 2002, IIT Kanpur, Nov.
A Ali +30 more
openaire +6 more sources
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 +4 more sources
Masses of fully heavy tetraquarks $$QQ {\bar{Q}} {\bar{Q}}$$ in an extended relativized quark model [PDF]
, 2020 Inspired by recent measurement of possible fully charmed tetraquarks in LHCb Collaboration, we investigate the mass spectra of fully heavy tetraquarks $QQ \bar Q \bar Q$ in an extended relativized quark model.
Qi-Fang Lü, D. Chen, Yubing Dong
semanticscholar +1 more source
Masses of doubly heavy tetraquarks TQQ′ in a relativized quark model [PDF]
, 2020 In the present work, the mass spectra of doubly heavy tetraquarks $T_{QQ^\prime}$ are systematically investigated in a relativized quark model. The four-body systems including the Coulomb potential, confining potential, spin-spin interactions, and ...
Qi-Fang Lü, D. Chen, Yubing Dong
semanticscholar +1 more source
Investigating Fully Strange Tetraquark System with Positive Parity in a Chiral Quark Model
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 +1 more source
The Genuine Resonance of Full-Charm Tetraquarks
Universe, 2021 In this work, the genuine resonance states of full-charm tetraquark systems with quantum numbers JPC=0++,1+−,2++ are searched in a nonrelativistic chiral quark model with the help of the Gaussian Expansion Method.
Xiaoyun Chen
doaj +1 more source
Quark confinement in a constituent quark model [PDF]
Nuclear Physics A, 1995 40 pages, 14 figures, complete uu-file avaiable on ...
Langfeld, K., Rho, M.
openaire +6 more sources
Modelling the quark propagator [PDF]
Nuclear Physics B - Proceedings Supplements, 2003 The quark propagator is at the core of lattice hadron spectrum calculations as well as studies in other nonperturbative schemes. We investigate the quark propagator with an improved staggered action (Asqtad) and an improved gluon action, which provides good quality data down to small quark masses.
Bowman, P. +3 more
openaire +5 more sources
Transverse momentum and transverse momentum distributions in the MIT bag model
Physics Letters B, 2022 The typical transverse momentum of a quark in the proton is a basic property of any QCD based model of nucleon structure. However, calculations in phenomenological models typically give rather small values of transverse momenta, which are difficult to ...
A.I. Signal, F.G. Cao
doaj +1 more source