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A model of cut-off momentum distribution functions in a Quark Gluon Plasma with finite baryon chemical potential is discussed. This produces a quark gluon plasma signature in Ultra Relativistic Nuclear Collisions with a specific structure…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. S. Singh , Agam K. Jha

The thermal QCD dilepton production rate is calculated at next-to-leading order in the strong coupling and at finite baryon chemical potential. The two-loop virtual photon self-energy is evaluated using finite temperature field theory and…

Nuclear Theory · Physics 2024-05-08 Jessica Churchill , Lipei Du , Charles Gale , Greg Jackson , Sangyong Jeon

We calculate the dilepton emissions as the decay product of the charm and bottom quarks produced in heavy-ion collisions at RHIC energy. We take into account the next-to-leading-order radiative corrections in perturbative QCD to the heavy…

High Energy Physics - Phenomenology · Physics 2008-11-26 David Fein , Zheng Huang , Peter Valerio , Ina Sarcevic

We have computed the hard dilepton production rate from a weakly magnetized deconfined QCD medium within one-loop photon self-energy by considering one hard and one thermomagnetic resummed quark propagator in the loop. In the presence of…

High Energy Physics - Phenomenology · Physics 2019-05-21 Aritra Das , Najmul Haque , Munshi G. Mustafa , Pradip K. Roy

Thermal electromagnetic radiation is emitted by the quark-gluon plasma (QGP) throughout its space-time evolution, with production rates that depend characteristically on the temperature. We study this temperature using thermal photons and…

Nuclear Theory · Physics 2024-12-16 Olaf Massen , Govert Nijs , Mike Sas , Wilke van der Schee , Raimond Snellings

There is an apparent contradiction in the current literature about the effect of rotation in the quark gluon plasma (QGP). While results from lattice QCD predict an increase in the confinement/deconfinement critical temperature,…

High Energy Physics - Theory · Physics 2025-12-01 Nelson R. F. Braga , Alexsandre L. Ferreira

The production of low mass dileptons and soft photons from thermalized Quark Gluon Plasma (QGP) and hadronic matter in relativistic heavy ion collisions is evaluated. A boost invariant longitudinal and cylindrically symmetric transverse…

Nuclear Theory · Physics 2016-09-08 Dipali Pal , Pradip Kumar Roy , Sourav Sarkar , Dinesh Kumar Srivastava , Bikash Sinha

In this article, we analyze the effects of stochastic magnetic fluctuations with respect to an intense magnetic field background over the yields for photon and dilepton emission processes in a thermalized quark-gluon plasma phase. Such…

High Energy Physics - Theory · Physics 2024-12-31 Jorge David Castaño-Yepes , Enrique Muñoz

The resummation technique of Braaten and Pisarski is used for a complete calculation of the $\alpha^2 \alpha_s$-contribution to the production rate of dileptons with energy E >> T and invariant mass M <~ T from a quark-gluon plasma. In…

High Energy Physics - Phenomenology · Physics 2016-08-24 M. H. Thoma , C. T. Traxler

The production of the intermediate mass dileptons originating from the annihilation and Compton scattering of the jets and high energy photons (resolved photons) passing through the quark-gluon plasma is calculated. The contribution of the…

High Energy Physics - Phenomenology · Physics 2011-11-29 Fu Yong-Ping , Li Yun-De

Considering the propagation of off-shell particles in the framework of thermal field theory, we present the general formalism for the calculation of the production rate of soft photons and dileptons from a hot plasma. This approach is…

High Energy Physics - Phenomenology · Physics 2009-10-28 P. A. Henning , E. Quack

Medium-induced modifications of the pion and quark-antiquark annihilation mechanisms of dilepton production during relativistic heavy ion collisions are considered. Due to the dense hadron environment, the pions produced during a collision…

Nuclear Theory · Physics 2007-05-23 D. Anchishkin , V. Khryapa , R. Naryshkin , V. Ruuskanen

We investigate the shear viscosity of leptons in a strongly coupled quark gluon plasma (QGP). We find that the shear viscosity due to the lepton-quark scattering is inversely proportional to the ratio of electric conductivity of the QGP to…

High Energy Physics - Theory · Physics 2015-06-17 Berndt Müller , Di-Lun Yang

We study the azimuthal angle and transverse momentum dependence of dilepton production from hot and magnetized hadronic matter using $\rho^0$-meson dominance. The thermomagnetic spectral function of the $\rho^0$ is evaluated using the real…

High Energy Physics - Phenomenology · Physics 2023-12-12 Rajkumar Mondal , Nilanjan Chaudhuri , Snigdha Ghosh , Sourav Sarkar , Pradip Roy

We use QCD kinetic theory to compute dilepton production coming from the pre-equilibrium phase of the Quark-Gluon Plasma created in high-energy heavy-ion collisions. We demonstrate that the dilepton spectrum exhibits a simple scaling in…

High Energy Physics - Phenomenology · Physics 2025-02-19 Oscar Garcia-Montero , Philip Plaschke , Sören Schlichting

We study the net dielectron production rates from an ensemble of thermal mesons, using an effective Lagrangian to model their interaction. The coupling between the electromagnetic and the hadronic sectors is done through the vector meson…

High Energy Physics - Phenomenology · Physics 2009-10-22 Charles Gale , Peter Lichard

A new channel of direct photon production from a quark gluon plasma (QGP) is explored in the framework of high-temperature QCD. This process appears at next-to-leading order, in the presence of a charge asymmetry in the excited matter. The…

High Energy Physics - Phenomenology · Physics 2010-11-26 Guang-You Qin , Abhijit Majumder , Charles Gale

We study the \textit{non-ideal} effects arising due to viscosity (both bulk and shear), equation of state ($\epsilon\neq 3P$) and cavitation on thermal dilepton production from QGP at RHIC energies. We calculate the first order corrections…

High Energy Physics - Phenomenology · Physics 2015-05-27 Jitesh R. Bhatt , Hiranmaya Mishra , V. Sreekanth

Starting from IP-Glasma initial conditions, we investigate the effects of bulk pressure on thermal dilepton production at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) energies. Though results of the thermal…

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
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