The heavy-quark potential in an anisotropic plasma

Dumitru, Adrian; Yun, Guo; Strickland, Michael

doi:10.1016/j.physletb.2008.02.048

Cited by 145 publications

(205 citation statements)

References 14 publications

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“…Quantities such as the dilepton production rate [96,97], photon production rate [98], single quark and quark anti-quark potentials [99][100][101][102][103][104][105][106][107], fermion damping rate [108][109][110], photon damping rate [111], gluon damping rate [112,113], jet energy loss [114][115][116][117][118][119][120][121][122][123][124][125], plasma instabilities [126][127][128][129][130][131][132], thermal axion production [133], and lepton asymmetry during leptogenesis [134,135] have also been calculated using HTLpt. We note, however, that most of the papers above have only worked at what we would call leading order in HTLpt.…”

Section: Jhep05(2014)027mentioning

confidence: 99%

Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Haque

Bandyopadhyay

Andersen

et al. 2014

J. High Energ. Phys.

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214

181

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We calculate the three-loop thermodynamic potential of QCD at finite temperature and chemical potential(s) using the hard-thermal-loop perturbation theory (HTLpt) reorganization of finite temperature and density QCD. The resulting analytic thermodynamic potential allows us to compute the pressure, energy density, and entropy density of the quark-gluon plasma. Using these we calculate the trace anomaly, speed of sound, and second-, fourth-, and sixth-order quark number susceptibilities. For all observables considered we find good agreement between our three-loop HTLpt calculations and available lattice data for temperatures above approximately 300 MeV.

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Section: Jhep05(2014)027mentioning

confidence: 99%

Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Haque

Bandyopadhyay

Andersen

et al. 2014

J. High Energ. Phys.

Self Cite

214

181

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“…In addition, the effects of medium anisotropies on the quarkonium states have been considered, both on the real [951] and imaginary [952][953][954] parts of the potential, as well as on bound-state production. Polarization of the P states has been predicted to arise from the medium anisotropies, resulting in a significant (∼ 30%) effect on the χ b states [955].…”

Section: Quarkonium Spectral Functions and Quarkonium Potentialmentioning

confidence: 99%

Heavy quarkonium: progress, puzzles, and opportunities

Brambilla¹,

Eidelman²,

Heltsley³

et al. 2011

Advances in the Physics of Particles and Nuclei

103

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A golden age for heavy quarkonium physics dawned a decade ago, initiated by the confluence of exciting advances in quantum chromodynamics (QCD) and an explosion of related experimental activity. The early years of this period were chronicled in the Quarkonium Working Group (QWG) CERN Yellow Report (YR) in 2004, which presented a comprehensive review of the status of the field at that time and provided specific recommendations for further progress. However, the broad spectrum of subsequent breakthroughs, surprises, and continuing puzzles could only be partially anticipated. Since the release of the YR, the BESII program concluded only to give birth to BESIII; the B-factories and CLEO-c flourished; quarkonium production and polarization measurements at HERA and the Tevatron matured; and heavy-ion collisions at RHIC have opened a window on the deconfinement regime. All these experiments leave legacies of quality, precision, and unsolved mysteries for quarkonium physics, and therefore beg for continuing investigations at BESIII, the LHC, RHIC, FAIR, the Super Flavor and/or Tau-Charm factories, JLab, the ILC, and beyond. The list of newly-found conventional states expanded to include hc(1P ), χc2(2P ), B + c , and η b (1S). In addition, the unexpected and still-fascinating X(3872) has been joined by * Editors † Section coordinators ‡ Corresponding author: bkh2@cornell.edu more than a dozen other charmonium-and bottomonium-like "XY Z" states that appear to lie outside the quark model. Many of these still need experimental confirmation. The plethora of new states unleashed a flood of theoretical investigations into new forms of matter such as quark-gluon hybrids, mesonic molecules, and tetraquarks. Measurements of the spectroscopy, decays, production, and in-medium behavior of cc, bb, and bc bound states have been shown to validate some theoretical approaches to QCD and highlight lack of quantitative success for others. Lattice QCD has grown from a tool with computational possibilities to an industrialstrength effort now dependent more on insight and innovation than pure computational power. New effective field theories for the description of quarkonium in different regimes have been developed and brought to a high degree of sophistication, thus enabling precise and solid theoretical predictions. Many expected decays and transitions have either been measured with precision or for the first time, but the confusing patterns of decays, both above and below open-flavor thresholds, endure and have deepened. The intriguing details of quarkonium suppression in heavy-ion collisions that have emerged from RHIC have elevated the importance of separating hotand cold-nuclear-matter effects in quark-gluon plasma studies. This review systematically addresses all these matters and concludes by prioritizing directions for ongoing and future efforts.

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“…There has been various attempts to study them both in the isotropic and anisotropic hot QCD medium [17][18][19][20]. The distributions functions for partons, used to study different aspects of QGP are discussed in [21][22][23][24][25]. In most of the studies, the momentum distributions that are crucial to obtain the whole plasma spectrum have been modeled by considering the QGP as free ultra-relativistic gas of quarks and gluons.…”

Section: Introductionmentioning

confidence: 99%

Collective excitations of hot QCD medium in a quasiparticle description

2017

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Collective excitations of a hot QCD medium are the main focus of the present article. The analysis is performed within semi-classical transport theory with isotropic and anisotropic momentum distribution functions for the gluonic and quark-antiquark degrees of freedom that constitutes the hot QCD plasma. The isotropic/equilibrium momentum distributions for gluons and quarks are based on a recent quasi-particle description of hot QCD equations of state. The anisotropic distributions are just the extensions of isotropic ones by stretching or squeezing them in one of the directions. The hot QCD medium effects in the model adopted here enter through the effective gluon and quark fugacities along with non-trivial dispersion relations leading to an effective QCD coupling constant. Interestingly, with these distribution functions the tensorial structure of the gluon polarization tensor in the medium turned out to be similar to the one for the non-interacting ultra-relativistic system of quarks/antiquarks and gluons . The interactions mainly modify the Debye mass parameter and , in turn, the effective coupling in the medium. These modifications have been seen to modify the collective modes of the hot QCD plasma in a significant way.

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The heavy-quark potential in an anisotropic plasma

Cited by 145 publications

References 14 publications

Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Three-loop HTLpt thermodynamics at finite temperature and chemical potential

Heavy quarkonium: progress, puzzles, and opportunities

Collective excitations of hot QCD medium in a quasiparticle description

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