Generalized parton distributions of pion for non-zero skewness in AdS/QCD

Kaur, Navdeep; Kumar, Narinder; Mondal, Chandan; Dahiya, Harleen

doi:10.1016/j.nuclphysb.2018.07.003

Cited by 25 publications

(20 citation statements)

References 100 publications

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“…This is because of the presence of strange quark having larger mass, while with increasing −t, the peaks along x get shifted to larger values of x same as pion unpolarized GPD. This is a model-independent behavior of GPDs which has been observed in other phenomenological models for the pion [110] as well as for the nucleon [158][159][160][161]. We also observe that, similar to the unpolarized quark GPD H, the transversely polarized quark GPD E T is broader in pion than that in kaon.…”

Section: Generalized Parton Distributionssupporting

confidence: 85%

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Tomography of light mesons in the light-cone quark model

et al. 2020

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We investigate the tomographical structure of the pion and kaon in the light-cone quark model. In particular, we study the parton distribution amplitude (PDA) of the pion and kaon. We obtain the parton distribution function (PDF) and the generalized parton distributions of the pion and kaon. The valence quark PDA and PDF of the pion, after QCD evolution, are found to be consistent with the data from the E791 and the E615 experiments at Fermilab, respectively. Further, we investigate the transverse momentum distributions (TMDs) of the pion and kaon. We also discuss the unpolarized TMD evolution for the pion and kaon in this model.

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Section: Generalized Parton Distributionssupporting

confidence: 85%

“…[109]. Recently, the GPDs of the pion for zero skewedness [87] and for nonzero skewedness [110] have been studied with the AdS/QCD approach. Furthermore, the studies on pion and kaon GPDs are explained in the Poincaré covariant Bethe-Salpeter constituent quark model by considering the support parameter of pseudoscalar mesons [111].…”

Section: Introductionmentioning

confidence: 99%

Tomography of light mesons in the light-cone quark model

et al. 2020

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“…Meanwhile, the peaks along x get shifted to larger values of x with increasing −t similar to that observed in the pion GPD. This seems to be a model independent behavior of the GPDs which has been noticed in other phenomenological models for the pion [12] as well as for the nucleon [115][116][117][118]. We also notice that the GPD E T for the up quark in the kaon exhibits a behavior similar to that observed in the pion, however, the magnitude of E T u in the kaon is larger than that in the pion.…”

Section: A Gpds and Generalised Form Factorssupporting

confidence: 82%

Generalized parton distributions and spin structures of light mesons from a light-front Hamiltonian approach

Adhikari,

Mondal,

Nair

et al. 2021

Preprint

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We present the generalized parton distributions (GPDs) for the valence quarks of the pion and the kaon in both momentum space and position space within the basis light-front quantization framework. These GPDs are obtained from the eigenvectors of a light-front effective Hamiltonian consisting of the holographic quantum chromodynamics (QCD) confinement potential, a complementary longitudinal confinement potential, and the color-singlet Nambu-Jona-Lasinio interactions for the valence quarks of mesons. We then calculate the generalized form factors of the pion and the kaon from the moments of these GPDs. Combining the tensor form factors with the electromagnetic form factors, we subsequently evaluate the impact parameter dependent probability density of transversely polarized quarks inside the pion and the kaon. The numerical results for the generalized form factors, tensor charges, as well as those for the probability densities and the transverse shift of the polarized densities are consistent with lattice QCD simulations and with chiral quark models.

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“…The pion GPDs have been attempted using covariant and light-front constituent quark models [104], two chiral quark models-NJL model and spectral quark model [89]. Recently, the GPDs of pion for zero skewedness [85] and for non-zero skewedness [105] have been studied with AdS/QCD approach. Furthermore, the studies on pion and kaon GPDs are explained in Poincaré covariant Bethe-Salpeter constituent quark model by considering the support parameter of pseudoscalar mesons [106].…”

Section: Introductionmentioning

confidence: 99%

Tomography of light mesons in light-cone quark model

Kaur,

Kumar,

Lan

et al. 2020

Preprint

Self Cite

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We investigate the tomographical structure of pion and kaon in light cone quark model (LCQM).In particular, we study the parton distribution amplitude (PDA) of pion and kaon. We obtain the parton distribution function (PDF) and the generalized parton distributions (GPDs) of the pion and kaon. The valence quark PDA and PDF of pion, after QCD evolution, are found to be consistent with the data from the E791 and the E615 experiments at Fermilab, respectively. Further, we investigate the transverse momentum distributions (TMDs) of pion and kaon. We also discuss the unpolarized TMD evolution for pion and kaon in this model.

show abstract

Generalized parton distributions of pion for non-zero skewness in AdS/QCD

Cited by 25 publications

References 100 publications

Tomography of light mesons in the light-cone quark model

Tomography of light mesons in the light-cone quark model

Generalized parton distributions and spin structures of light mesons from a light-front Hamiltonian approach

Tomography of light mesons in light-cone quark model

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