Results 41 to 50 of about 38,607,398 (267)
Two-solar-mass hybrid stars: A two model description using the Nambu-Jona-Lasinio quark model [PDF]
, 2016 Hybrid stars with a quark phase described by the Nambu-Jona-Lasinio model are studied. The hadron-quark model used to determine the stellar matter equation of state favors the appearance of quark matter: the coincidence of the deconfinement and chiral ...
R. Pereira, P. Costa, C. Providencia
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Nuclear 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
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HEAVY BARYONS IN A QUARK MODEL [PDF]
International Journal of Modern Physics A, 2008 A quark model is applied to the spectrum of baryons containing heavy quarks. The model gives masses for the known heavy baryons that are in agreement with experiment, but for the doubly-charmed baryon Ξcc, the model prediction is too heavy. Mixing between the ΞQ and Ξ′Q states is examined and is found to be small for the lowest lying states.
Roberts, W., Pervin, Muslema
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Spectrum of heavy baryons in the quark model [PDF]
, 2015 Single- and double- heavy baryons are studied in the constituent quark model. The model Hamiltonian is chosen as a standard one with two exceptions : (1) The color-Coulomb term depend on quark masses, and (2) an antisymmetric $LS$ force is introduced ...
T. Yoshida +4 more
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A Monte Carlo global analysis of the Standard Model Effective Field Theory: the top quark sector [PDF]
Journal of High Energy Physics, 2019 A bstractWe present a novel framework for carrying out global analyses of the Standard Model Effective Field Theory (SMEFT) at dimension-six: SMEFiT.
N. Hartland +6 more
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Models of the quark mixing matrix [PDF]
Physical Review D, 1992 Presented by Mihir P. Worah at DPF 92 Meeting, Fermilab, November, 1992.
Rosner, Jonathan L., Worah, Mihir P.
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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
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Strange baryon spectroscopy in the relativistic quark model [PDF]
, 2015 Mass spectra of strange baryons are calculated in the framework of the relativistic quark model based on the quasipotential approach. Baryons are treated as the relativistic quark-diquark bound systems.
R. Faustov, V. Galkin
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Quark matter and quark stars at finite temperature in Nambu–Jona-Lasinio model
European 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
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Physics Essays, 2018 Current-quark masses are compared to the rest masses allowed by the Helmholtz equation in a polar model. Within the uncertainty of the current u quark mass determination, the current quark mass coincides with the rest mass allowed by the Helmholtz equation in the polar model in accordance with the second root of the zero Neumann function.
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