Results 11 to 20 of about 17,152 (246)

THE HYPERCENTRAL CONSTITUENT QUARK MODEL [PDF]

open access: yesHadrons, Nuclei and Applications, 2001
The hypercentral Constituent Quark Model is presented and its application to the description of the electromagnetic properties of baryons is reviewed. The results concerning the elastic nucleon form factors and the electromagnetic excitation of baryon resonances are compared with the recent experimental ...
GIANNINI, MAURO, Santopinto, E.
openaire   +8 more sources

Valence quark distributions of light mesons in light-cone quark model

open access: yesSciPost Physics Proceedings, 2022
In order to investigate the tomographical structure of light pseudoscalar mesons, particularly, pion and kaon, we study the valence quark distribution function (PDF) and the generalized parton distributions (GPDs) using light-cone quark model (LCQM).
Satvir Kaur, Narinder Kumar, Jiangshan Lan, Chandan Mondal, Harleen Dahiya
doaj   +1 more source

T-odd quark-gluon-quark correlation function in the light-front quark-diquark model

open access: yesSciPost Physics Proceedings, 2022
We have scrutinized the transverse momentum dependent quark-gluon-quark correlation function. We have utilized the light-front quark-diquark model to study the time-reversal-odd interaction-dependent twist-3 gluon distributions which we have obtained ...
Shubham Sharma, Narinder Kumar, Harleen Dahiya
doaj   +1 more source

The Quantum Nature of Lorentz Invariance

open access: yesUniverse, 2018
If the reality underlying classical physics is quantum in nature, then it is reasonable to assume that the transformations of fields, currents, energy, and momentum observed macroscopically are the result of averaging of symmetry groups acting in the ...
Richard Kerner
doaj   +1 more source

Strong Effective Coupling, Meson Ground States, and Glueball within Analytic Confinement

open access: yesParticles, 2019
The phenomena of strong running coupling and hadron mass generating have been studied in the framework of a QCD-inspired relativistic model of quark-gluon interaction with infrared-confined propagators.
Gurjav Ganbold
doaj   +1 more source

Recent results on top quark mass and properties and rare/anomalous top quarks interactions in CMS

open access: yesSciPost Physics Proceedings, 2022
The amount of data collected by the CMS experiment at the CERN LHC in the second data taking period provides the possibility to study absolute and differential cross sections of top quark interaction processes with high precision.
Sebastian Wuchterl
doaj   +1 more source

UNQUENCHING THE QUARK MODEL [PDF]

open access: yesTheoretical Nuclear Physics in Italy, 2007
We present the formalism for a new generation of unquenched quark models in which quark-antiquark pair effects are taken into account in an explicit form via a microscopic QCD-inspired quark-antiquark creation mechanism. No truncation in the sum over all the big tower of states is necessary since these states are automatically generated by means of ...
Santopinto, E., Bijker, R.
openaire   +2 more sources

Sub-leading twist transverse momentum dependent parton distributions in the light-front quark-diquark model

open access: yesNuclear Physics B, 2023
In this study, the T-even sub-leading twist transverse momentum dependent distributions (TMDs) of proton in the light-front quark-diquark model (LFQDM) have been investigated. We have derived the overlap form of the light-front wave functions (LFWFs) for
Shubham Sharma   +2 more
doaj   +1 more source

Quark-Meson Coupling Model with Short-Range Quark-Quark Interactions [PDF]

open access: yesProgress of Theoretical Physics, 2001
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. With the addition of correlations, the saturation curve for symmetric nuclear matter is much improved at high density.
Saito, K., Tsushima, K.
openaire   +3 more sources

Quark matter and quark stars at finite temperature in Nambu–Jona-Lasinio model

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We extend the SU(3) Nambu–Jona-Lasinio (NJL) model to include two types of vector interaction. Using these two types of vector interaction in NJL model, we study the quark symmetry free energy in asymmetric quark matter, the constituent quark mass, the ...
Peng-Cheng Chu   +6 more
doaj   +1 more source

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