<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>η</mml:mi></mml:math>
 mesons in hot and dense asymmetric nuclear matter

Kumar, Rajesh; Kumar, Arvind

doi:10.1103/physrevc.102.065207

Cited by 9 publications

(32 citation statements)

References 82 publications

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“…In this work, we extended our previous study in the nuclear medium at zero magnetic field [38]. First, we evaluated the in-medium dispersion relation of η-meson using the ηN Lagrangian by the magnetically induced scalar densities from the chiral SU(3) model [38]. In the second approach, we used the scalar density of nucleons calculates using chiral SU(3) model in the dispersion relation of η-mesons which is derived from the chiral effective ηN Lagrangian of chiral perturbation theory [37].…”

Section: Introductionmentioning

confidence: 59%

“…In this article, we investigated the magnetic field effect on the in-medium mass and optical potential of the η-meson in the hot asymmetric nuclear matter. In this work, we extended our previous study in the nuclear medium at zero magnetic field [38]. First, we evaluated the in-medium dispersion relation of η-meson using the ηN Lagrangian by the magnetically induced scalar densities from the chiral SU(3) model [38].…”

Section: Introductionmentioning

confidence: 98%

“…Polyakov quark meson (PQM) model [28,29], coupled channel approach [30][31][32][33], chiral SU (3) model [9,10,20,34,35], chiral perturbation theory (ChPT) [36][37][38], QCD sum rules [39][40][41][42][43][44], Nambu-Jona-Lasinio (NJL) model [45], and the Polyakov loop extended NJL (PNJL) model [46][47][48]. In the present work, we have used two of the above theoretical approaches i.e.…”

Section: Introductionmentioning

confidence: 99%

“…The K/π/η − B interactions are much studied in literature using various theoretical and experimental approaches [36,38,[49][50][51][52][53][54]. Among these mesons, the η-meson is of special interest due to the possibility of η-nucleon bound state formation [36,37,55].…”

Section: Introductionmentioning

confidence: 99%

“…[52], also the effect of ηN interactions were studied using intranuclear cascade model under the effect of distinct medium attributes [53]. Recently, using the combined (chiral SU(3) model + ChPT) and solo (chiral SU(3) model) approach, we derived ηN equation of motion in the non-magnetized nuclear matter and observed (-54.61) -116.83 MeV mass-shift at ρ 0 with a ηN =1.02 fm [38]. Evidently, the mass and optical potential of η-mesons have the model dependencies and therefore still need more exploration.…”

Section: Introductionmentioning

confidence: 99%

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$η$ mesons in hot magnetized nuclear matter

Kumar¹,

Kumar²

2021

Preprint

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The ηN interactions are investigated in the hot magnetized asymmetric nuclear matter using chiral SU(3) model and chiral perturbation theory (ChPT). In the chiral model, the in-medium properties of η-meson are calculated by the medium modified scalar densities under the influence of an external magnetic field. Further, in the combined approach of chiral model and ChPT, off-shell contributions of ηN interactions are evaluated from the ChPT effective ηN Lagrangian, and the in-medium effect of scalar densities are incorporated from the chiral SU(3) model. We observe a significant effect of magnetic field on the in-medium mass and optical potential of η meson. We observe a deeper mass-shift in the combined approach of ChPT and chiral model compared to the effect of solo chiral SU(3) model. In both approaches, no additional mass-shift is observed due to the uncharged nature of η mesons in the presence of magnetic field.

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Section: Introductionmentioning

confidence: 59%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

$η$ mesons in hot magnetized nuclear matter

Kumar¹,

Kumar²

2021

Preprint

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η mesons in hot magnetized nuclear matter

Kumar¹,

Kumar²

2022

Chinese Phys. C

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The $\eta N$ interactions are investigated in the hot magnetized asymmetric nuclear matter using chiral SU(3) model and chiral perturbation theory (ChPT). In the chiral model, the in-medium properties of $\eta$-meson are calculated by the medium modified scalar densities under the influence of an external magnetic field. Further, in the combined approach of chiral model and ChPT, off-shell contributions of $\eta N$ interactions are evaluated from the ChPT effective $\eta N$ Lagrangian, and the in-medium effect of scalar densities are incorporated from the chiral SU(3) model. We observe a significant effect of magnetic field on the in-medium mass and optical potential of $\eta$ meson. We observe a deeper mass-shift in the combined approach of ChPT and chiral model compared to the effect of solo chiral SU(3) model. In both approaches, no additional mass-shift is observed due to the uncharged nature of $\eta$ mesons in the presence of magnetic field.

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Effective masses and magnetic moments of charmed baryons in asymmetric hot strange hadronic matter

Dutt,

Kumar,

Dahiya

2024

Phys. Rev. D

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In the present work, we have studied the masses and magnetic moments of spin−12+ and spin−32+ singly and doubly charmed baryons in the strange hadronic medium at finite temperature using the chiral SU(3) quark mean field model. The properties of baryons within the framework of the chiral SU(3) mean field model are defined in terms of constituent quark masses and energies, which are modified through the exchange of scalar fields σ, ζ, and δ and the vector fields ω, ρ, and ϕ. The scalar-isovector field, δ, and the vector-isovector field, ρ, contribute when the medium has finite isospin asymmetry. We have calculated the effective masses of constituent quarks and charmed baryons in the nuclear and strange matter within the chiral SU(3) quark mean field model and have used these as the input in SU(4) constituent chiral quark model to compute the effective magnetic moments of these baryons. Considering the configuration mixing, the contributions of valence quarks, quark sea, and orbital angular momentum of quark sea have been considered explicitly to calculate the in-medium magnetic moments. Published by the American Physical Society 2024

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η mesons in hot and dense asymmetric nuclear matter

Cited by 9 publications

References 82 publications

$η$ mesons in hot magnetized nuclear matter

$η$ mesons in hot magnetized nuclear matter

η mesons in hot magnetized nuclear matter

Effective masses and magnetic moments of charmed baryons in asymmetric hot strange hadronic matter

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