Pseudo Nambu–Goldstone modes in neutron stars by Toru Kojo

“…We study NG modes within a schematic quark model whose parameters at high density are constrained by the two-solar mass constraint. …”
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Instanton effects in twist-3 generalized parton distributions by June-Young Kim, Christian Weiss

“…The spin-orbit correlations are qualitatively different from naive quark model expectations.…”
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Weak decays of triply heavy baryons by Zhen-Xing Zhao, Fu-Wei Zhang, Qi Yang

“…We first obtain the form factors using the light-front quark model in the three-quark picture, and then apply them to arrive at some phenomenological predictions, including the decay widths of semileptonic decays and nonleptonic decays. …”
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Leading neutron production at HERA in the color dipole approach by Carvalho F., Gonçalves V.P., Spiering D., Navarra F.S.

“…We describe this process using the color dipole formalism and, assuming the validity of the additive quark model, we relate the dipole-pion with the well determined dipoleproton cross section. …”
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Semileptonic transition of $$\varLambda _{b}$$ Λ b baryon by Kaushal Thakkar

“…Abstract The semileptonic transition of $$\varLambda _b$$ Λ b baryon is studied using the Hypercentral constituent quark model. The six-dimensional hyperradial $$Schr\ddot{o}dinger$$ S c h r o ¨ d i n g e r equation is solved in the variational approach to get masses and wavefunctions of heavy baryons. …”
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Universal behavior of mass gaps existing in the single heavy baryon family by Bing Chen, Si-Qiang Luo, Xiang Liu

“…Under the framework of a constituent quark model, we quantitatively explain why such interesting phenomenon happens, when these established excited heavy baryons are regarded as the $$\lambda $$ λ -mode excitations. …”
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Spectrum of the $$uudc \bar{c}$$ uudcc¯ hidden charm pentaquark with an SU(4) flavor-spin hyperfine interaction by Fl. Stancu

“…Abstract We study a few of the lowest states of the pentaquark $$uudc\overline{c}$$ uudcc¯ , of positive and negative parity, in a constituent quark model with an SU(4) flavor-spin hyperfine interaction. …”
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Investigation of multi-quark systems by F Abdi, G. R Boroun

“…These calculations are calculated using the approach of diquark - antidiquark within the framework of the non-relativistic quark model. In the following, we calculate the mass of Pentaquark systems in the same way.…”
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Bridging the two order parameters for the QCD deconfiment phase transition by Carlomagno Juan Pablo, Loewe Marcelo

“…We study the relation between two order parameters for deconfinement, normally employed in the literature: the continuum threshold s0, in the context of QCD Sum Rules, and the trace of the Polyakov loop ϕ in the framework of a nonlocal SU(2) chiral quark model. We establish a bridge between both order parameters at finite temperature T and baryonic chemical potential μ. …”
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Dynamically generated magnetic moment in the Wigner-function formalism by Shijun Mao, Dirk H. Rischke

“…We derive the equal-time transport and constraint equations for the quark Wigner function in a magnetized quark model and solve them in the semi-classical expansion. …”
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Linking infrared and ultraviolet parameters of pion-like states in strongly coupled gauge theories by S. V. Troitsky, V. E. Troitsky

“…Abstract It has been shown previously that in a relativistic constituent-quark model, predictions for the electromagnetic form factor of the $$\pi $$ π meson match not only experimental data but also, in the limit of large momentum transfers, the asymptotics derived from Quantum Chromodynamics (QCD). …”
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Mass and decay properties of double heavy baryons with a phenomenological potential model by S. Rahmani, H. Hassanabadi, H. Sobhani

“…Abstract We consider baryons in a nonrelativistic quark model, find the wave function and masses of the baryons with two heavy quarks including $$\Xi _{bc}(bcu)$$ Ξbc(bcu) , $$\Xi _{cc}(ccu)$$ Ξcc(ccu) , $$\Xi _{bb}(bbu)$$ Ξbb(bbu) , $$\Omega _{bb}(bbs)$$ Ωbb(bbs) , $$\Omega _{bc}(bcs)$$ Ωbc(bcs) and $${\Omega _{cc}}(ccs)$$ Ωcc(ccs) . …”
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πe3 Form Factor f- Near the Mass Shell by M. I. Krivoruchenko

“…A numerical estimate of the form factor yields a value two times higher than the previous estimate from the quark model. Off-shell form factors are known to be ambiguous because of the gauge dependence and the freedom in the parameterization of the fields. …”
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Double parton scattering and the proton transverse structure at the LHC by Matteo Rinaldi, Federico Alberto Ceccopieri

“…We develop the formalism to extract this information from dPDFs and present results by using constituent quark model calculations within the Light-Front approach, focusing on radiatively generated gluon dPDFs. …”
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In-medium pion valence distributions in a light-front model by J.P.B.C. de Melo, K. Tsushima, I. Ahmed

“…Pion valence distributions in nuclear medium and vacuum are studied in a light-front constituent quark model. The in-medium input for studying the pion properties is calculated by the quark-meson coupling model. …”
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NON-STRANGE VECTOR-MESON PRODUCTION IN K-P INTERACTIONS AT 4.2 GEV-C by Losty, M, Holmgren, S, Aguilarbenitez, M, Barreiro, F, Hemingway, R, Worden, R, Massaro, G, Blokzijl, R, Kluyver, J, Wolters, G, Timmermans, J, Vergeest, J, Vandewalle, R, Wells, J, Foster, B, Grossmann, P, Lyons, L

“…The results are compared with duality and quark model predictions, as well as used to test current ideas in two-body phenomenology. © 1978.…”

Baryon magnetic moments in a simultaneous expansion in 1/N and ms. by Luty, M, March-Russell, J, White, M

“…At leading order in this expansion, the magnetic moments obey the non-relativistic quark-model relations. We compute corrections to these relations using an effective lagrangian formalism which respects chiral symmetry to all orders in the $1/N$ expansion. …”

Exploring the internal structure of exotic resonances with ALICE by Padhan Sonali

“…In the last decade, several resonances in the mass range 1000-2000 MeV/c2 have emerged that cannot be explained by the quark model. The internal structure of exotic resonances such as f0, f1, and f2 is currently unknown. …”
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Comparisons of magnetic charge and axial charge meson cloud distributions in the PCQM by X. Y. Liu, Z. J. Liu, K. Khosonthongkee, A. Limphirat, Y. Yan

“…Abstract The meson cloud distributions in r-space are extracted from the nucleon electromagnetic and axial form factors which are derived in the perturbative chiral quark model. The theoretical results indicate that the magnetic charge and axial charge distributions of the three-quark core have the similar distributions in r-space, the magnetic charge distributions of the meson cloud and three-quark core are more or less in the same region and peak at distances of around 0.4 fm, which is in good agreement with the finding of works in the framework of chiral perturbation theory, but the axial charge meson cloud distributes mainly inside the three-quark core.…”
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Ωcγ→Ωc⁎ transition in lattice QCD by H. Bahtiyar, K.U. Can, G. Erkol, M. Oka

“…The magnetic dipole form factor is found to be mainly determined by the strange quark and the electric quadrupole form factor to be negligibly small, in consistency with the quark model. We also evaluate the helicity amplitudes and the decay rate.…”
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