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相关论文: The complex heavy-quark potential in an anisotropi…

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We introduce a method for reducing anisotropic heavy-quark potentials to isotropic potentials by using an effective screening mass that depends on the quantum numbers $l$ and $m$ of a given state. We demonstrate that, using the resulting 1D…

高能物理 - 唯象学 · 物理学 2023-01-11 Ajaharul Islam , Lihua Dong , Yun Guo , Alexander Rothkopf , Michael Strickland

We present a technique to represent anisotropic heavy-quark potentials as effective potentials. This involves employing an effective screening mass linked to the quantum numbers $l$ and $m$ of a specific state. Our approach utilizes the…

高能物理 - 唯象学 · 物理学 2023-12-13 Ajaharul Islam

Due to the rapid longitudinal expansion of the quark-gluon plasma created in heavy-ion collisions, large local-rest-frame momentum-space anisotropies are generated during the system's evolution. These momentum-space anisotropies complicate…

高能物理 - 唯象学 · 物理学 2021-12-28 Lihua Dong , Yun Guo , Ajaharul Islam , Michael Strickland

We study the real part of the static potential of a heavy quark-antiquark system in an anisotropic plasma medium. We use a quasi-particle approach where the collective dynamics of the plasma constituents is described using hard-loop…

高能物理 - 唯象学 · 物理学 2024-05-10 Margaret E. Carrington , Gabor Kunstatter , Arghya Mukherjee

We determine the hard-loop resummed propagator in an anisotropic QCD plasma in general covariant gauges and define a potential between heavy quarks from the Fourier transform of its static limit. We find that there is stronger attraction on…

高能物理 - 唯象学 · 物理学 2008-11-26 Adrian Dumitru , Yun Guo , Michael Strickland

Using the gauge/gravity duality we calculate the heavy quark-antiquark potential in a hot, anisotropic and strongly coupled Yang-Mills plasma in (3+1)-dimensions. As the anisotropic medium we take a deformed version of \mathcal{N} = 4 super…

高能物理 - 理论 · 物理学 2013-07-22 Somdeb Chakraborty , Najmul Haque

The hard-loop resummed propagator in an anisotropic QCD plasma in general linear gauges are computed. We get the explicit expressions of the gluon propagator in covariant gauge, Coulomb gauge and temporal axial gauge. Considering one gluon…

高能物理 - 唯象学 · 物理学 2014-11-18 Yun Guo

We compute the complex heavy-quark potential in an anisotropic quark-gluon plasma (QGP) using kinetic theory with a Bhatnagar-Gross-Krook (BGK) collision kernel to incorporate collisions via gluon collective modes. By modifying the medium's…

高能物理 - 唯象学 · 物理学 2025-04-04 Manas Debnath , Lata Thakur , Najmul Haque

The in-medium physics of heavy quarkonium is an ideal proving ground for our ability to connect knowledge about the fundamental laws of physics to phenomenological predictions. One possible route to take is to attempt a description of heavy…

高能物理 - 唯象学 · 物理学 2013-02-26 Alexander Rothkopf

Quark-gluon plasma during its initial phase after its production in heavy-ion collisions is expected to have substantial pressure anisotropies. In order to model this situation by a strongly coupled N=4 super-Yang-Mills plasma with fixed…

高能物理 - 理论 · 物理学 2015-06-05 Anton Rebhan , Dominik Steineder

We present an improved analytic parametrisation of the complex in-medium heavy quark potential derived rigorously from the generalised Gauss law. To this end we combine in a self-consistent manner a non-perturbative vacuum potential with a…

高能物理 - 唯象学 · 物理学 2019-06-11 David Lafferty , Alexander Rothkopf

We consider quarkonium in a hot QCD plasma which, due to expansion and non-zero viscosity, exhibits a local anisotropy in momentum space. At short distances the heavy-quark potential is known at tree level from the hard-thermal loop…

高能物理 - 唯象学 · 物理学 2009-08-19 Adrian Dumitru , Yun Guo , Agnes Mocsy , Michael Strickland

Master equations of the Lindblad type have recently been derived to describe the dynamics of quarkonium states in the quark-gluon plasma. Because their full resolution in three dimensions is very challenging, the equations are often reduced…

高能物理 - 唯象学 · 物理学 2022-12-05 Roland Katz , Stéphane Delorme , Pol-Bernard Gossiaux

Recently a lot of progress has been made in deriving the heavy quark potential within a QCD medium. In this article we have considered heavy quarkonium in a hot quark gluon plasma phase. The heavy-quark potential has been modeled properly…

核理论 · 物理学 2018-06-26 P. K. Srivastava , O. S. K. Chaturvedi , Lata Thakur

We calculate the Debye mass for the screening of the heavy quark potential in a plasma of massless quarks coupled to the temporal gluon background governed by the Polyakov loop potential within the PNJL model in RPA approximation. We give a…

高能物理 - 唯象学 · 物理学 2012-09-20 Jakub Jankowski , David Blaschke

Following the original idea of Debye, we define and extract a gauge-invariant screening mass from the complex static in-medium heavy-quark potential $V_{Q\bar{Q}}$, recently obtained from lattice QCD. To this end we derive a field…

高能物理 - 唯象学 · 物理学 2017-03-08 Yannis Burnier , Alexander Rothkopf

In this paper, we employ the gauge/gravity duality to study some features of the quark gluon plasma. For this purpose, we implement a holographic QCD model constructed from an Einstein-Maxwell-Dilaton gravity at finite temperature and…

高能物理 - 唯象学 · 物理学 2024-02-23 Sara Heshmatian , Razieh Morad

The potential between a heavy quark and an anti-quark inside the quark-gluon plasma (QGP) is studied on the basis of the gauge/gravity duality. A real-time complex potential V_{Q\bar{Q}}(t,r) is derived from the Wilson loop with the…

高能物理 - 唯象学 · 物理学 2015-06-12 Tomoya Hayata , Kanabu Nawa , Tetsuo Hatsuda

We analysis physical observables of heavy quarks in gravity models describing strongly coupled non-conformal plasmas with anisotropy via the gauge/gravity duality. The focus lies on the binding energy of static quark-antiquark $(q\bar…

高能物理 - 理论 · 物理学 2018-01-08 Enrico M. Brehm

The collective modes of QCD at temperatures and densities above its phase-transition are analyzed for isotropic systems as well as for systems having an anisotropy in momentum-space using the HTL approximation. For isotropic systems,…

高能物理 - 唯象学 · 物理学 2007-05-23 Paul Romatschke
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