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Related papers: Heavy meson dissociation in a plasma with magnetic…

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Heavy vector mesons detected after a heavy ion collision are important sources of information about the quark gluon plasma. The fraction of such particles that survive the plasma phase and reach the detectors is related to the dissociation…

High Energy Physics - Phenomenology · Physics 2019-07-24 Nelson R. F. Braga , Luiz F. Ferreira

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

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

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

Recent investigations show that the thermal spectral function of heavy $ {b \bar b } $ and $ {c \bar c} $ vector mesons can be described using holography. These studies consider a bottom up model that captures the heavy flavour spectroscopy…

High Energy Physics - Phenomenology · Physics 2019-01-30 Nelson R. F. Braga , Luiz F. Ferreira

Heavy vector mesons provide important information about the quark gluon plasma (QGP) formed in heavy ion collisions. This happens because the fraction of quarkonium states that are produced depends on the properties of the medium. The…

High Energy Physics - Phenomenology · Physics 2023-09-22 Nelson R. F. Braga , Yan F. Ferreira

The fraction of heavy vector mesons produced in a heavy ion collision, as compared to a proton proton collision, serves as an important indication of the formation of a thermal medium, the quark gluon plasma. This sort of analysis strongly…

High Energy Physics - Phenomenology · Physics 2016-11-23 Nelson R. F. Braga , M. A. Martin Contreras , Saulo Diles

We extend our analysis of holographic meson dissociation in the presence of an intense magnetic field. In addition to the previously known critical temperature above which the mesons melt, we found that for certain magnetic field…

High Energy Physics - Theory · Physics 2020-06-09 Daniel Ávila , Leonardo Patiño

We study the dissociation of heavy vector mesons in a thermal medium from the point of view of the configurational entropy. Bottomonium and charmonium vector mesons in a plasma are represented using a holographic AdS/QCD model. The…

High Energy Physics - Phenomenology · Physics 2018-11-02 Nelson R. F. Braga , Luiz F. Ferreira , Roldao da Rocha

There are strong indications that ultra-relativistic heavy ion collisions, produced in accelarators, lead to the formation of a new state of matter: the quark gluon plasma (QGP). This deconfined QCD matter is expected to exist just for very…

High Energy Physics - Phenomenology · Physics 2020-03-24 Nelson R. F. Braga , Rodrigo da Mata

Heavy vector mesons produced in a heavy ion collision are important sources of information about the quark gluon plasma (QGP). For instance, the fraction of bottomonium states observed in such a collision is altered by the dissociation…

High Energy Physics - Theory · Physics 2022-08-03 Nelson R. F. Braga , Yan F. Ferreira , Luiz F. Ferreira

In the present letter we use holographic methods to show that a very intense magnetic field lowers the temperature at which the mesons melt and decreases the mass gap of the spectrum along with their masses. Consequently, there is a range…

High Energy Physics - Theory · Physics 2019-07-10 Daniel Ávila , Leonardo Patiño

We study hydrogen plasmas at magnetic fields B ~ 10^{12}-10^{13} Gauss, densities ~ 10^{-3}-10^3 g/cc and temperatures T ~ 10^{5.5}-10^{6.5} K, typical of photospheres of middle-aged cooling neutron stars. We construct an analytical free…

Plasma Physics · Physics 2009-10-31 A. Y. Potekhin , G. Chabrier , Yu. A. Shibanov , J. Ventura

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

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

Heavy ion collisions, produced in particle accelerators, lead to the formation of a new state of matter, known as the quark gluon plasma. It is not possible to observe directly the plasma, where quarks and gluons are not confined into…

High Energy Physics - Theory · Physics 2020-11-18 Nelson R. F. Braga , Rodrigo da Mata

We study the energy dispersions of holographic light mesons and their decay constants on dense nuclear medium. As the spatial momenta of mesons along the boundary direction increase, both observables of the mesons not only increase but also…

High Energy Physics - Phenomenology · Physics 2015-06-11 Bum-Hoon Lee , Chanyong Park , Siyoung Nam

We study the properties of charmonium in a strongly coupled QCD-like plasma at finite momentum. As a basis for this study, a "bottom-up" holographic model is used which has been previously shown to reproduce charmonium phenomenology in…

Nuclear Theory · Physics 2013-10-29 Paul M. Hohler , Yi Yin

In this work I explore theoretical and phenomenological implications of chemical potentials and charge densities inside a strongly coupled thermal plasma, using the gauge/gravity correspondence. Strong coupling effects discovered in this…

High Energy Physics - Theory · Physics 2009-07-22 Matthias Kaminski

A new analysis technique for the inference of degree of dissociation of weakly collisional hydrogen plasmas was developed and tested with an experiment. Neutrals in low temperature plasmas are critical to a wide range of plasma-based…

Plasma Physics · Physics 2025-05-05 Bin Ahn
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