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By making use of a non-perturbative definition of a momentum diffusion coefficient as well as Heavy Meson Chiral Perturbation Theory, we investigate the Brownian motion and kinetic equilibration of heavy quark flavours deep in the confined…

High Energy Physics - Phenomenology · Physics 2015-05-27 M. Laine

We derive a fluctuation dissipation relation connecting the drag and diffusion jet transport coefficients for an energetic light quark traversing a non-perturbative thermalized gluon plasma. The hard quark is taken to be close to on-shell,…

High Energy Physics - Phenomenology · Physics 2026-03-16 Amit Kumar , Abhijit Majumder , Ismail Soudi , Johannes Heinrich Weber

Simultaneous description of heavy quark nuclear suppression factor $R_{AA}$ and the elliptic flow $v_2$ is a top challenge for all the existing models. We highlight how the temperature dependence of the energy loss/transport coefficients is…

Nuclear Theory · Physics 2017-03-08 Santosh K. Das , Francesco Scardina , Salvatore Plumari , Vincenzo Greco

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

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

A Gribov-type dispersion relation is treated as an effective description of interacting gluons forming a hot medium. Temperature dependence of the Gribov parameter is determined from the fit to the lattice Yang-Mills results describing…

Nuclear Theory · Physics 2017-03-24 Viktor Begun , Wojciech Florkowski , Radoslaw Ryblewski

The thermodynamic properties of the quark gluon plasma($QGP$) as well as its phase diagram are calculated as a function of baryon density (chemical potential) and temperature. The $QGP$ is assumed to be composed of the light quarks only,…

High Energy Physics - Phenomenology · Physics 2015-06-11 Majid Modarres , Ahmad Mohamadnejad

We review the various methods which have been employed recently to describe the thermodynamics of the high temperature quark-gluon plasma using weak coupling techniques, and we compare their results with those of most recent lattice gauge…

High Energy Physics - Phenomenology · Physics 2016-11-23 J. -P. Blaizot , E. Iancu , A. Rebhan

We investigate the effect that the temperature dependence of the crystal structure of a two dimensional organic charge-transfer salt has on the low-energy Hamiltonian representation of the electronic structure. For that, we determine the…

Strongly Correlated Electrons · Physics 2012-08-23 Harald O. Jeschke , Mariano de Souza , Roser Valenti , Rudra Sekhar Manna , Michael Lang , John A. Schlueter

By using the generalized Boltzmann equation of transport and the first-order approximation of Chapman-Enskog expansion on the kappa-distribution function, we study the thermal conductivity and Dufour effects in the weakly ionized and…

Plasma Physics · Physics 2020-03-06 Haijuan Xia , Jiulin Du

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

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

We present a calculation of the heavy quark momentum diffusion coefficients in a quark-gluon plasma under the presence of a strong external magnetic field, within the Lowest Landau Level (LLL) approximation. In particular, we apply the Hard…

High Energy Physics - Phenomenology · Physics 2022-07-26 Aritra Bandyopadhyay , Jinfeng Liao , Hongxi Xing

I discuss lattice QCD calculations of the properties of strongly interacting matter at finite temperature, including the determination of the transition temperature Tc, equation of state, different static screening lengths and quarkonium…

High Energy Physics - Lattice · Physics 2008-11-26 Peter Petreczky

We present results on heavy quark free energies in 2-flavour QCD. The temperature dependence of the interaction between static quark anti-quark pairs will be analyzed in terms of temperature dependent screening radii, which give a first…

High Energy Physics - Lattice · Physics 2007-05-23 O. Kaczmarek , F. Zantow

The strongly-coupled phase of the quark-gluon plasma (QGP) is studied here by resorting to a $T$-matrix formulation in which the medium is seen as a non-ideal gas of quasiparticles (quarks, antiquarks and gluons) interacting…

High Energy Physics - Phenomenology · Physics 2015-07-01 Gwendolyn Lacroix , Claude Semay , Fabien Buisseret

The temperature dependence of an integer Quantum Hall effect transition is studied in a sample where the disorder is dominated by short-ranged potential scattering. At low temperatures the results are consistent with a $(T/T_0)^{\kappa}$…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 P. T. Coleridge , P. Zawadzki

We present the first study of the quark mass dependence of the heavy quark momentum and spatial diffusion coefficients using lattice QCD with light dynamical quarks corresponding to a pion mass of 320 MeV. We find that, for the temperature…

By utilizing a background field effective theory, we compute the collisional energy loss of a heavy quark moving through a semiquark-gluon plasma characterized by nontrivial holonomy for Polyakov loops. We consider the elastic scatterings…

High Energy Physics - Phenomenology · Physics 2024-08-15 Qianqian Du , Mudong Du , Yun Guo

Collisions between heavy atomic nuclei at ultra-relativistic energies are carried out at particle colliders to produce the quark-gluon plasma, a state of matter where quarks and gluons are not confined into hadrons, and colour degrees of…

Nuclear Theory · Physics 2020-10-01 Fernando G. Gardim , Giuliano Giacalone , Matthew Luzum , Jean-Yves Ollitrault