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The effect of finite-coupling corrections to the drag force on a moving heavy quark in the Super Yang-Mills plasma is investigated. These corrections are related to curvature-squared corrections in the corresponding gravity dual. The…

High Energy Physics - Theory · Physics 2009-02-09 Kazem Bitaghsir Fadafan

We study the holographic Langevin diffusion coefficients of a heavy quark, when traveling through a strongly coupled anisotropic plasma in the presence of magnetic field~$\mathcal{B}$. In particular, we clarified how motion velocities shape…

High Energy Physics - Phenomenology · Physics 2025-10-21 Qi Zhou , Ben-Wei Zhang

We employ methods of gauge/string duality to analyze the Brownian motion and the concomitant Langevin equation of a heavy quark in a strongly coupled, thermal, anisotropic Yang-Mills plasma. We consider fluctuations both along and…

High Energy Physics - Theory · Physics 2014-04-23 Shankhadeep Chakrabortty , Somdeb Chakraborty , Najmul Haque

We express the heavy quark diffusion coefficient as the temporal variation of a Wilson line along the Schwinger-Keldysh contour. This generalizes the classical formula for diffusion as a force-force correlator to a non-abelian theory. We…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jorge Casalderrey-Solana , Derek Teaney

We compute the momentum broadening of a heavy fundamental charge propagating through a $\mathcal{N}=4$ Yang Mills plasma at large t' Hooft coupling. We do this by expressing the medium modification of the probe's density matrix in terms of…

High Energy Physics - Theory · Physics 2010-10-27 Jorge Casalderrey-Solana , Derek Teaney

We compute finite 't Hooft coupling corrections to observables related to charged quantities in a strongly coupled $\mathcal{N}=4$ supersymmetric Yang-Mills plasma. The coupling corrected equations of motion of gauge fields are explicitly…

High Energy Physics - Theory · Physics 2018-08-01 Sebastian Waeber , Andreas Schäfer

Using the Janik-Peschanski dual to a Bjorken flow, a Langevin equation is derived for a heavy quark in an expanding N = 4 supersymmetric Yang-Mills plasma. Such a plasma is characterized by a proper-time dependence of the temperature and…

High Energy Physics - Theory · Physics 2009-06-19 G. C. Giecold

We use perturbation theory to compute the diffusion coefficient of a heavy quark or scalar moving in N=4 SU(N_c) Super Yang-Mills plasma to leading order in the coupling and the ratio T/M<<1. The result is compared both to recent strong…

High Energy Physics - Phenomenology · Physics 2009-11-11 P. M. Chesler , A. Vuorinen

The subdiffusion phenomena are studied for heavy quarks dynamics in the hot QCD matter. My approach aims to provide a more realistic description of heavy quark dynamics through detailed theoretical analyses and numerical simulations,…

High Energy Physics - Phenomenology · Physics 2024-10-10 Jai Prakash

The dynamics of heavy quarks within the hot QCD medium have been revisited, considering the influence of anomalous diffusion. This study has been conducted using the framework of the fractional Langevin equation involving the Caputo…

High Energy Physics - Phenomenology · Physics 2024-06-11 Jai Prakash

Quark Gluon Plasma transport coefficients for heavy quarks and quark-antiquark pairs are computed through an extension of the results obtained for a hot QED plasma by describing the heavy-quark propagation in the eikonal approximation and…

High Energy Physics - Phenomenology · Physics 2009-11-09 A. Beraudo , A. De Pace , W. M. Alberico , A. Molinari

In this note we consider a relativistic heavy quark which moves in the quark-gluon plasmas. By using the holographic methods, we analyze the Langevin diffusion process of this relativistic heavy quark. This heavy quark is described by a…

High Energy Physics - Theory · Physics 2014-03-11 Jafar Sadeghi , Fatemeh Pourasadollah

We study the Langevin diffusion of a relativistic heavy quark in anisotropic strongly coupled theories in the local limit. Firstly, we use the axion space-dependent deformed anisotropic N=4 sYM, where the geometry anisotropy is always…

High Energy Physics - Theory · Physics 2015-03-25 Dimitrios Giataganas , Hesam Soltanpanahi

The relativistic diffusion process of heavy quarks is formulated on the basis of the relativistic Langevin equation in It\^{o} discretization scheme. The drag force inside the quark-gluon plasma (QGP) is parametrized according to the…

High Energy Physics - Phenomenology · Physics 2009-08-03 Yukinao Akamatsu , Tetsuo Hatsuda , Tetsufumi Hirano

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

Anisotropic momentum diffusion coefficients of heavy quarks have been computed in a strongly magnetized quark-gluon plasma beyond the static limit within the framework of Langevin dynamics. Depending on the orientation of the motion of the…

High Energy Physics - Phenomenology · Physics 2020-12-08 Balbeer Singh , Manu Kurian , Surasree Mazumder , Hiranmaya Mishra , Vinod Chandra , Santosh K. Das

The drag of a heavy quark and the jet quenching parameter are studied in the strongly coupled N=2* plasma using the AdS/CFT correspondence. Both increase in units of the spatial string tension as the theory departs from conformal…

High Energy Physics - Theory · Physics 2009-10-16 Carlos Hoyos-Badajoz

We investigate the thermalization of charm quarks in high energy heavy ion collisions. To this end, we calculate the diffusion coefficient in the perturbative Quark Gluon Plasma and relate it to collisional energy loss and momentum…

High Energy Physics - Phenomenology · Physics 2009-11-10 Guy D. Moore , Derek Teaney

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 explore various aspects of the motion of heavy quarks in strongly-coupled gauge theories, employing the AdS/CFT correspondence. Building on earlier work by Mikhailov, we study the dispersion relation and energy loss of an accelerating…

High Energy Physics - Theory · Physics 2010-02-10 Mariano Chernicoff , Alberto Guijosa
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