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The drag and diffusion coefficients of charm and bottom quarks propagating through quark gluon plasma (QGP) have been evaluated for conditions relevant to nuclear collisions at Large Hadron Collider (LHC). The dead cone and…

Nuclear Theory · Physics 2014-11-20 Santosh K Das , Jan-e Alam , Payal Mohanty

In this work, we investigate the momentum-dependent drag and diffusion coefficient of heavy quarks (HQs) moving in the quark-gluon plasma (QGP) background. The leading order scattering amplitudes required for this purpose have been obtained…

High Energy Physics - Phenomenology · Physics 2024-12-05 Sumit , Arghya Mukherjee , Najmul Haque , Binoy Krishna Patra

The drag and diffusion coefficients of heavy quarks propagating through quark gluon plasma (QGP) have been evaluated using Hard Thermal Loop (HTL) approximations. The HTL corrections to the relevant propagators and vertices have been…

High Energy Physics - Phenomenology · Physics 2013-07-10 Surasree Mazumder , Trambak Bhattacharyya , Jan-e Alam

We evaluate the heavy quark momentum diffusion coefficients in a hot magnetized medium for the most general scenario of any arbitrary values of the external magnetic field. We choose to work with the systematic way of incorporating the…

High Energy Physics - Phenomenology · Physics 2024-01-31 Aritra Bandyopadhyay

Heavy Quarks (HQs) serve as excellent probes to understand various characteristics of deconfined hot QCD medium, comprising light quarks and gluons, created in the Heavy Ion Collisions (HICs). Strong magnetic fields in non-central HICs may…

High Energy Physics - Phenomenology · Physics 2023-10-18 Surasree Mazumder , Vinod Chandra , Santosh K Das

The heavy quark drag and momentum diffusion coefficients in the presence of both the collisional and radiative processes have been studied in a hot viscous QCD medium. The thermal medium effects are incorporated by employing the effective…

High Energy Physics - Phenomenology · Physics 2021-08-18 Adiba Shaikh , Manu Kurian , Santosh K. Das , Vinod Chandra , Sadhana Dash , Basanta K. Nandi

The momentum diffusion coefficient for heavy quarks is studied in a deconfined gluon plasma in the static approximation by investigating a correlation function of the color electric field using Monte Carlo techniques. The diffusion…

High Energy Physics - Lattice · Physics 2013-05-30 Debasish Banerjee , Saumen Datta , Rajiv Gavai , Pushan Majumdar

Kinetic and chemical equilibrations play important roles in the formation of the quark-gluon plasma (QGP) in relativistic heavy-ion collisions (HICs). These processes further influence the production of hard and electromagnetic probes in…

High Energy Physics - Phenomenology · Physics 2023-12-08 Xiaojian Du

We study the influence of a background magnetic field on the $J/\psi$ vector meson in a DBI-extension of the soft wall model, building upon our earlier work Phys. Rev. D91, 086002 (2015). In this specific holographic QCD model, we discuss…

High Energy Physics - Theory · Physics 2018-04-04 David Dudal , Thomas G. Mertens

We report on recent research on the properties of elementary particle matter governed by the strong force at high temperatures, where QCD predicts hadrons to dissolve into the Quark-Gluon Plasma (QGP). After a short introduction to the…

High Energy Physics - Phenomenology · Physics 2008-05-04 R. Rapp , H. van Hees

We discuss heavy-quark dynamics in the quark-gluon plasma under a strong magnetic field induced by colliding nuclei. By the use of the diagrammatic resummation techniques for Hard Thermal Loop and the external magnetic field, we show…

High Energy Physics - Phenomenology · Physics 2016-11-03 Koichi Hattori , Kenji Fukushima , Ho-Ung Yee , Yi Yin

The drag and diffusion coefficients of heavy quarks (HQs) have been evaluated in the pre-equilibrium phase of the evolving fireball produced in heavy ion collisions at RHIC and LHC energies. The KLN and classical Yang-Mills spectra have…

Nuclear Theory · Physics 2015-08-05 Santosh K. Das , Marco Ruggieri , Surasree Mazumder , Vincenzo Greco , Jan-e Alam

We consider propagation of heavy quarks in QCD matter. Because of large quark mass, the radiative quark energy loss appears to be qualitatively different from that of light quarks at all energies of practical importance. Finite quark mass…

High Energy Physics - Phenomenology · Physics 2016-09-06 Yu. L. Dokshitzer , D. E. Kharzeev

The momentum dependence of the drag coefficient of heavy quarks propagating through quark gluon plasma (QGP) has been evaluated. The results have been used to estimate the nuclear suppression factor of charm and bottom quarks in QGP. We…

Nuclear Theory · Physics 2011-10-10 Surasree Mazumder , Trambak Bhattacharyya , Jan-e Alam , Santosh K Das

The effects of gluon radiation by charm quarks on the transport coefficients {\it e.g.} drag, longitudinal and transverse diffusion and shear viscosity have been studied within the ambit of perturbative quantum chromodynamics (pQCD) and…

Nuclear Theory · Physics 2014-01-08 Surasree Mazumder , Trambak Bhattacharyya , Jan-e Alam

Heavy quark (HQ) momentum ($\kappa$) and spatial diffusion ($D_s$) coefficients are computed in a non-perturbative thermal QCD medium in the presence of a background magnetic field of arbitrary strength. Both perturbative and…

High Energy Physics - Phenomenology · Physics 2026-04-28 Debarshi Dey , Aritra Bandyopadhyay , Yifeng Sun , Santosh K. Das

We present some recent results obtained in the study of the color magnetic and electric screening masses in the QCD plasma. In particular, we discuss how the masses get modified by strong external fields which are expected to be created in…

High Energy Physics - Lattice · Physics 2018-04-18 Claudio Bonati , Massimo D'Elia , Michele Mesiti , Francesco Negro , Andrea Rucci , Francesco Sanfilippo

We calculate the momentum diffusion coefficient for heavy quarks in SU(3) gluon plasma at temperatures 1-2 times the deconfinement temperature. The momentum diffusion coefficient is extracted from a Monte Carlo calculation of the…

High Energy Physics - Lattice · Physics 2012-11-13 Debasish Banerjee , Saumen Datta , Rajiv V. Gavai , Pushan Majumdar

The drag and diffusion coefficients of charm and bottom quarks propagating through quark gluon plasma (QGP) have been evaluated within the framework of perturbative Quantum Chromodynamics (pQCD). Both radiative and collisional processes of…

Nuclear Theory · Physics 2012-02-08 Santosh K Das , Jan-e Alam

This paper investigates the influence of heavy-quark momentum on their interaction rate and the resulting drag coefficient in a quark-gluon plasma. To go beyond simplified treatments, we introduce a phenomenological extension of the drag…

High Energy Physics - Phenomenology · Physics 2026-04-30 Marjan Rahimi Nezhad , Fatemeh Taghavi-Shahri , Kurosh Javidan
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