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We investigate vector meson spectral functions at finite temperature and density through the soft wall model, a bottom-up holographic approach to QCD. We find narrow resonances at small values of the parameters, becoming broader as…

High Energy Physics - Phenomenology · Physics 2015-06-11 Floriana Giannuzzi

We extend the predictive soft-wall AdS/QCD model to a thermodynamic model by considering the black hole metric. A modified bulk vacuum expectation value and a modified coefficient for the quartic term in the bulk scalar potential are…

High Energy Physics - Phenomenology · Physics 2015-06-03 Ling-Xiao Cui , Shingo Takeuchi , Yue-Liang Wu

Based on the IR-improved bulk holographic AdS/QCD model which provides a consistent prediction for the mass spectra of resonance scalar, pseudoscalar, vector and axial vector mesons, we investigate its finite temperature behavior. By…

High Energy Physics - Phenomenology · Physics 2016-06-22 Ling-Xiao Cui , Zhen Fang , Yue-Liang Wu

We use the soft-wall AdS/QCD model to investigate the finite-temperature effects on the spectral function in the vector channel. The dissociation of the vector meson tower onto the AdS black hole leads to the in-medium mass shift and the…

High Energy Physics - Phenomenology · Physics 2014-11-18 Mitsutoshi Fujita , Kenji Fukushima , Tatsuhiro Misumi , Masaki Murata

We study the spectrum of vector mesons in a finite temperature plasma. The plasma is holographically described by a black hole AdS/QCD model. We compute the boundary retarded Green's function using AdS/CFT prescriptions. The corresponding…

High Energy Physics - Theory · Physics 2015-06-18 Luis A. H. Mamani , Alex S. Miranda , Henrique Boschi-Filho , Nelson R. F. Braga

We investigate hadron spectra in 2-color QCD using lattice simulation with $N_{f}=2$ at low temperature and finite density in which there appears not only the hadronic phase but also the superfluid phase. We first calculate the pion and rho…

High Energy Physics - Lattice · Physics 2022-11-28 Kotaro Murakami , Daiki Suenaga , Kei Iida , Etsuko Itou

The thermal mass spectra of scalar and pseudo scalar mesons are studied in an IR-improved soft-wall AdS/QCD model. The Reissner-Nordstrom AdS black hole metric is introduced to describe both the finite temperature and density effects. The…

High Energy Physics - Phenomenology · Physics 2013-10-08 Ling-Xiao Cui , Yue-Liang Wu

Meson properties at finite temperature and density are studied in lattice QCD simulations with two-flavor Wilson fermions. For this purpose, we investigate screening masses of mesons in pseudo-scalar (PS) and vector (V) channels. The…

High Energy Physics - Lattice · Physics 2010-12-10 Hideaki Iida , Yu Maezawa , Koichi Yazaki

The pion superfluid and the corresponding Goldstone and soft modes are investigated in two-flavor quark-meson model with functional renormalization group. By solving the flow equations for the effective potential and the meson two-point…

High Energy Physics - Phenomenology · Physics 2017-07-19 Ziyue Wang , Pengfei Zhuang

The plasma phase at high temperatures of a strongly coupled gauge theory can be holographically modelled by an AdS black hole. Matter in the fundamental representation and in the quenched approximation is introduced through embedding…

High Energy Physics - Theory · Physics 2010-10-27 Carlos Hoyos , Karl Landsteiner , Sergio Montero

The spectrum of radially excited unflavored vector mesons is relatively well measured, especially in the heavy-quark sector. This provides a unique opportunity to observe the behavior of the hadron spectrum at fixed quantum numbers as a…

High Energy Physics - Phenomenology · Physics 2013-08-30 S. S. Afonin , I. V. Pusenkov

By using gauge/gravity duality, we calculate the spectral function of the heavy vector mesons with the presence of an intense magnetic field in a hot and dense medium. The results show that, a general conclusion, as the increases of…

High Energy Physics - Phenomenology · Physics 2023-02-07 Yan-Qing Zhao , Defu Hou

We present the results of a holographic model for heavy vector mesons inside a plasma at finite temperature and density. The spectral function shows a nice description of the dissociation of the mesons in the medium, corresponding to the…

High Energy Physics - Phenomenology · Physics 2017-10-20 Nelson R. F. Braga , Luiz F. Ferreira

In this work, we investigate the melting of charmonium states within a holographic QCD model in the context of Einstein-Maxwell-Dilaton (EMD) theory. In the dual field theory, the model describes the heavy mesons inside a finite temperature…

High Energy Physics - Phenomenology · Physics 2022-07-13 Luis A. H. Mamani , Defu Hou , Nelson R. F. Braga

The holographic dual of a finite-temperature gauge theory with a small number of flavours typically contains D-brane probes in a black hole background. We have recently shown that these systems undergo a first order phase transition…

High Energy Physics - Theory · Physics 2010-04-06 David Mateos , Robert C. Myers , Rowan M. Thomson

We present a holographic bottom up model for the thermal behavior of $ c \bar c$ vector mesons in a finite temperature and density plasma. There is a clear physical interpretation for the three imput energy parameters of the model. Two of…

High Energy Physics - Phenomenology · Physics 2017-11-22 Nelson R. F. Braga , Luiz F. Ferreira , Alfredo Vega

Within the relativistic mean-field framework with hadron masses and coupling constants dependent on the mean scalar field we study properties of nuclear matter at finite temperatures, baryon densities and isospin asymmetries relevant for…

Nuclear Theory · Physics 2022-10-12 K. A. Maslov , D. N. Voskresensky

We present a self-consistent dynamical holographic QCD model to investigate the mass spectra and melting behavior of heavy and exotic mesons at finite temperature and finite density. Our approach is based on the Einstein-Maxwell-Dilaton…

High Energy Physics - Theory · Physics 2025-03-21 Bruno Toniato , David Dudal , Subhash Mahapatra , Roldao da Rocha , Siddhi Swarupa Jena

The holographic dual of a finite-temperature gauge theory with a small number of flavours typically contains D-brane probes in a black hole background. At low temperature the branes sit outside the black hole and the meson spectrum is…

High Energy Physics - Theory · Physics 2008-11-26 David Mateos , Robert C. Myers , Rowan M. Thomson

We present a holographic description of the thermal behavior of $ b \bar b$ heavy vector mesons inside a plasma at finite temperature and density. The meson dissociation in the medium is represented by the decrease in the height of the…

High Energy Physics - Phenomenology · Physics 2017-10-10 Nelson R. F. Braga , Luiz F. Ferreira
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