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相关论文: Meson-Nucleon Vertex Form Factors at Finite Temper…

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In this paper the dependence of meson-nucleon-nucleon vertex form factors is studied as a function of termperature. The results are obtained starting from a zero temperature Bonn potential. The temperature dependence of the vertex form…

核理论 · 物理学 2009-10-31 F. C. Khanna , A. M. Rakhimov , U. T. Yakhshiev

The axial-vector form factor of the nucleons is studied at a finite temperature using the holographic soft-wall model with the thermal dilaton field. We use the bulk interaction action known from the zero temperature case and apply the…

高能物理 - 唯象学 · 物理学 2023-11-27 Shahin Mamedov , Narmin Nasibova

We investigate meson's spectrum, decay constant and form factor in a nuclear medium through holographic two- and three-point correlation functions. To describe a nuclear medium composed of protons and neutrons, we consider a hard wall model…

高能物理 - 理论 · 物理学 2016-08-03 Chanyong Park

Modifications of baryon properties due to the restoration of the chiral symmetry in an external hot and dense baryon medium are investigated in an effective chiral quark-meson theory. The nucleon arises as a soliton of the Gell-Mann -…

高能物理 - 唯象学 · 物理学 2009-10-22 Chr. V. Christov , E. Ruiz Arriola , K. Goeke

Pion-meson-exchange nucleon-nucleon potentials are derived for two nucleons in the intermediate states. The mesons we include are (i) pseudoscalar mesons: $\pi, \eta, \eta'$; (ii) vector mesons: $\rho, \omega, \phi$; (iii) scalar mesons:…

核理论 · 物理学 2008-11-26 Th. A. Rijken , V. G. J. Stoks

We study the temperature dependence of the $a_1$ meson-nucleon coupling constant in the framework of the soft-wall AdS/QCD model with thermal dilaton field. Profile functions for the axial-vector and fermion fields in the AdS-Schwarzschild…

高能物理 - 唯象学 · 物理学 2022-01-31 Shahin Mamedov , Shahnaz Taghiyeva

We compute continuum and infinite volume limit extrapolations of the structure factors of neutron matter at finite temperature and density. Using a lattice formulation of leading-order pionless effective field theory, we compute the…

核理论 · 物理学 2021-04-07 Andrei Alexandru , Paulo Bedaque , Evan Berkowitz , Neill C. Warrington

Two-meson-exchange nucleon-nucleon potentials are derived where either one or both nucleons contains a pair vertex. Physically, the meson-pair vertices are meant to describe in an effective way (part of) the effects of heavy-meson exchange…

核理论 · 物理学 2008-11-26 Th. A. Rijken , V. G. J. Stoks

The understanding of the interaction of nucleons in nuclear and neutron-rich matter at non-zero temperature is important for a variety of applications ranging from heavy-ion collisions to nuclear astrophysics. In this paper we apply the…

核理论 · 物理学 2009-08-14 Francesca Sammarruca

We investigate the dependence of the $\rho$ meson-nucleon coupling constant on the temperature of the medium using the soft-wall model of AdS/QCD. The finite temperature profile functions for the vector and fermion fields are applied to the…

高能物理 - 唯象学 · 物理学 2021-09-14 Shahin Mamedov , Narmin Nasibova

By using the AdS/CFT correspondence, we investigate various form factors between nucleons and mesons in a nuclear medium. In order to describe a nuclear medium holographically, we take into account the thermal charged AdS geometry with an…

高能物理 - 理论 · 物理学 2018-02-14 Chanyong Park , Jung Hun Lee

We present new parameterizations of vector and axial nucleon form factors. We maintain an excellent descriptions of the form factors at low momentum transfers, where the spatial structure of the nucleon is important, and use the Nachtman…

高能物理 - 实验 · 物理学 2008-11-26 A. Bodek , S. Avvakumov , R. Bradford , H. Budd

The shell evolution of neutron-rich nuclei with temperature is studied in a beyond-mean-field framework rooted in the meson-nucleon Lagrangian. The temperature-dependent Dyson equation with the dynamical kernel taking into account the…

核理论 · 物理学 2022-10-19 Herlik Wibowo , Elena Litvinova

We present new parameterizations of vector and axial nucleon form factors. We maintain an excellent descriptions of the form factors at low momentum transfers, where the spatial structure of the nucleon is important, and use the Nachtman…

高能物理 - 实验 · 物理学 2009-09-29 A. Bodek , S. Avvakumov , R. Bradford , H. Budd

The meson-cloud model of the nucleon consisting of a system of three valence quarks surrounded by a meson cloud is applied to study the electroweak structure of the proton and neutron. The electroweak nucleon form factors are calculated…

高能物理 - 唯象学 · 物理学 2015-05-13 B. Pasquini , S. Boffi

Changes in the meson-nucleon coupling constant and the vertex form factor in nuclear matter are studied in a modified Skyrme Lagrangian including the sigma-meson field that satisfies the scale invariance. Renormalization of the axial-vector…

核理论 · 物理学 2009-10-31 A. M. Rakhimov , F. C. Khanna , U. T. Yakhshiev , M. M. Musakhanov

The understanding of the interaction of nucleons in nuclear and neutron-rich matter at non-zero temperature is important for a variety of applications ranging from heavy-ion collisions to nuclear astrophysics. In this papre we apply the…

核理论 · 物理学 2014-11-21 Francesca Sammarruca

The density and temperature dependence of nucleonic single particle spectral function in symmetric nuclear matter at finite temperatures and densities beyond normal nuclear matter density is investigated in a model emphasizing short-range…

核理论 · 物理学 2009-11-10 Frank Froemel , Horst Lenske , Ulrich Mosel

In this work we study in a formal way the density dependent hadron field theory at finite temperature for nuclear matter. The thermodynamical potential and related quantities, as energy density and pressure are derived in two different…

核理论 · 物理学 2008-11-26 S. S. Avancini , M. E. Bracco , M. Chiapparini , D. P. Menezes

We investigate the vector meson's gravitational form factors (GFFs) and generalized parton distributions (GPDs) at finite temperatures within the soft-wall AdS/ QCD model. The plotted soft-wall GFFs graphs at zero temperature are close to…

高能物理 - 唯象学 · 物理学 2023-07-04 Minaya Allahverdiyeva , Shahin Mamedov
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