QCD Thermodynamics on lattice

Petreczky, Péter

doi:10.1016/j.nuclphysbps.2004.11.366

Cited by 40 publications

(33 citation statements)

References 88 publications

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“…The existence of such a transition has indeed been demonstrated from first principles using Monte Carlo simulations of lattice QCD. The properties of this new state of matter have also been studied [856][857][858][859].…”

Section: Quarkonia As a Probe Of Hot And Dense Mattermentioning

confidence: 99%

Heavy quarkonium: progress, puzzles, and opportunities

Brambilla¹,

Eidelman²,

Heltsley³

et al. 2011

Advances in the Physics of Particles and Nuclei

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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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Section: Quarkonia As a Probe Of Hot And Dense Mattermentioning

confidence: 99%

Heavy quarkonium: progress, puzzles, and opportunities

Brambilla¹,

Eidelman²,

Heltsley³

et al. 2011

Advances in the Physics of Particles and Nuclei

Self Cite

103

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“…(For recent reviews, see Ref. [20,21,22]). According to current lattice calculations, at zero net baryon density deconfinement occurs at T c ∼ (170 − 195) MeV [23,24] ‡ ‡ In the view of crossover nature of the deconfinement transition it is difficult to define the corresponding temperature interval precisely.…”

Section: Color Screening and Deconfinementmentioning

confidence: 99%

Quarkonium in a hot medium

Petreczky¹

2010

J. Phys. G: Nucl. Part. Phys.

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“…For pure SU(3) lattice gauge theory T c = 265 (1) MeV holds, assuming σ = 420 MeV for the string tension, while for QCD the cross-over temperature appears to be around T c ≈ 165 MeV, see Ref. [30] for reviews. Using for simplicity T c = 200 MeV to illustrate the magnitudes, the temporal lattice size is then about 1 fermi at T c .…”

Section: B Debye Screening Massmentioning

confidence: 99%

Glauber dynamics of phase transitions: SU(3) lattice gauge theory

2006

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Motivated by questions about the QCD deconfining phase transition, we studied in two previous papers Model A (Glauber) dynamics of 2D and 3D Potts models, focusing on structure factor evolution under heating (heating in the gauge theory notation, i.e., cooling of the spin systems). In the present paper we set for 3D Potts models (Ising and 3-state) the scale of the dynamical effects by comparing to equilibrium results at first and second order phase transition temperatures, obtained by re-weighting from a multicanonical ensemble. Our finding is that the dynamics entirely overwhelms the critical and non-critical equilibrium effects.In the second half of the paper we extend our results by investigating the Glauber dynamics of pure SU(3) lattice gauge on Nτ N 3 σ lattices directly under heating quenches from the confined into the deconfined regime. The exponential growth factors of the initial response are calculated, which give Debye screening mass estimates. The quench leads to competing vacuum domains of distinct Z3 triality, which delay equilibration of pure gauge theory forever, while their role in full QCD remains a subtle question. As in spin systems we find for pure SU(3) gauge theory a dynamical growth of structure factors, reaching maxima which scale approximately with the volume of the system, before settling down to equilibrium. Their influence on various observables is studied and different lattice sizes are simulated to illustrate an approach to a finite volume continuum limit. Strong correlations are found during the dynamical process, but not in the deconfined phase at equilibrium.

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QCD Thermodynamics on lattice

Abstract: I discuss recent developments in lattice QCD thermodynamics on the nature of the transition at finite temperature and density, equation of state, screening of static charges and meson spectral functions at high temperatures.

Cited by 40 publications

References 88 publications

Heavy quarkonium: progress, puzzles, and opportunities

Heavy quarkonium: progress, puzzles, and opportunities

Quarkonium in a hot medium

Glauber dynamics of phase transitions: SU(3) lattice gauge theory

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