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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

We report progress towards computing the heavy quark momentum diffusion coefficient from the lattice correlator of two chromoelectric fields attached to a Polyakov loop in pure SU(3) gauge theory. Using a multilevel algorithm and tree-level…

High Energy Physics - Lattice · Physics 2019-12-06 Nora Brambilla , Viljami Leino , Peter Petreczky , Antonio vairo

In these proceedings, we compute the heavy quark momentum diffusion coefficient using QCD effective kinetic theory for a plasma going through the bottom-up thermalization scenario until approximate hydrodynamization. This transport…

High Energy Physics - Phenomenology · Physics 2025-06-25 Kirill Boguslavski , Aleksi Kurkela , Tuomas Lappi , Florian Lindenbauer , Jarkko Peuron

We report progress towards computing the heavy quark momentum diffusion coefficient from the correlator of two chromo-electric fields attached to a Polyakov loop in pure SU(3) gauge theory. Using a multilevel algorithm and tree-level…

High Energy Physics - Lattice · Physics 2020-11-11 Nora Brambilla , Viljami Leino , Peter Petreczky , Antonio Vairo

Among quantities playing a central role in the theoretical interpretation of heavy ion collision experiments at RHIC and LHC are so-called transport coefficients. Out of those heavy quark diffusion coefficients play an important role e.g.…

High Energy Physics - Lattice · Physics 2014-09-15 Olaf Kaczmarek

We report on a lattice investigation of heavy quark diffusion within pure SU(3) plasma above the deconfinement transition, with the quarks treated to leading order in the heavy mass expansion. Using a multilevel algorithm, several volumes…

High Energy Physics - Lattice · Physics 2015-03-19 A. Francis , O. Kaczmarek , M. Laine , J. Langelage

We study the heavy-quark momentum diffusion coefficient in far from equilibrium gluon plasma in a self-similar regime using real-time lattice techniques. We use 3 methods for the extraction: an unequal time electric field 2-point correlator…

High Energy Physics - Phenomenology · Physics 2021-02-03 K. Boguslavski , A. Kurkela , T. Lappi , J. Peuron

We present the first calculations of the heavy flavor diffusion coefficient using lattice QCD with light dynamical quarks. For temperatures $195\,\mathrm{MeV}<T<352\,\mathrm{MeV}$, the heavy quark spatial diffusion coefficient is found to…

High Energy Physics - Lattice · Physics 2023-07-13 Luis Altenkort , Olaf Kaczmarek , Rasmus Larsen , Swagato Mukherjee , Peter Petreczky , Hai-Tao Shu , Simon Stendebach

Heavy quarks placed within a hot QCD medium undergo Brownian motion, characterized by specific transport coefficients. Their determination can be simplified by expanding them in $T/M$, where $T$ is the temperature and $M$ is a heavy quark…

High Energy Physics - Lattice · Physics 2022-08-15 D. Banerjee , S. Datta , M. Laine

We estimate the momentum diffusion coefficient of a heavy quark within a pure SU(3) plasma at a temperature of about 1.5Tc. Large-scale Monte Carlo simulations on a series of lattices extending up to 192^3*48 permit us to carry out a…

High Energy Physics - Lattice · Physics 2015-12-14 A. Francis , O. Kaczmarek , M. Laine , T. Neuhaus , H. Ohno

The heavy quark diffusion coefficient is encoded in the spectral functions of the chromo-electric and the chromo-magnetic correlators, of which the latter describes the T/M contribution. We study these correlators at two different…

High Energy Physics - Lattice · Physics 2022-12-22 Viljami Leino , Nora Brambilla , Julian Mayer-Steudte , Peter Petreczky

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

We present a lattice determination of the heavy-quark diffusion coefficient in (2+1)-flavor QCD with almost physical quark masses. The momentum and spatial diffusion coefficients are extracted for a wide temperature range, from $T=163$ MeV…

We apply the gradient flow on a color-electric two-point function that encodes the heavy quark momentum diffusion coefficient. The simulations are done on fine isotropic lattices in the quenched approximation at $1.5\,T_c$. The continuum…

High Energy Physics - Lattice · Physics 2021-02-02 Luis Altenkort , Alexander M. Eller , Olaf Kaczmarek , Lukas Mazur , Guy D. Moore , Hai-Tao Shu

The thermalization rate of a heavy quark is related to its momentum diffusion coefficient. Starting from a Kubo relation and using the framework of the heavy quark effective theory, we argue that in the large-mass limit the momentum…

High Energy Physics - Lattice · Physics 2010-04-14 Simon Caron-Huot , Mikko Laine , Guy D. Moore

We compute the momentum diffusion coefficient of a nonrelativistic heavy quark in a hot QCD plasma, to next-to-leading order in the weak coupling expansion. Corrections arise at O(g); physically they represent interference between…

High Energy Physics - Phenomenology · Physics 2008-11-26 Simon Caron-Huot , Guy D. Moore

We study the diffusion of heavy quarks in the Quark Gluon Plasma using the Langevin equations of motion and estimate the contribution of the transport peak to the Euclidean current-current correlator. We show that the Euclidean correlator…

High Energy Physics - Phenomenology · Physics 2009-11-11 Peter Petreczky , Derek Teaney

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

We compute the heavy quark momentum diffusion coefficient using effective kinetic theory for a system going through bottom-up isotropization until approximate hydrodynamization. We find that when comparing the nonthermal diffusion…

High Energy Physics - Phenomenology · Physics 2025-06-25 Kirill Boguslavski , Aleksi Kurkela , Tuomas Lappi , Florian Lindenbauer , Jarkko Peuron

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
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