On the temperature dependence of quarkonium correlators

Petreczky, Péter

doi:10.1140/epjc/s10052-009-0942-1

Cited by 52 publications

(55 citation statements)

References 56 publications

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“…This is the first indication of strong temperature effects for P waves. We reiterate that this temperature dependence is not due to changes in the susceptibility or zero mode [23], since this contribution is absent in NRQCD.…”

Section: Correlatorsmentioning

confidence: 87%

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Melting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD

Aarts

Allton

Kim

et al. 2013

J. High Energ. Phys.

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Section: Correlatorsmentioning

confidence: 87%

“…[18][19][20][21]. We also emphasise that the use of NRQCD enhances the signature for quarkonium melting/survival, as it avoids several problems which have complicated the study of relativistic quarks in thermal equilibrium [22,23]. In particular, constant contributions associated with transport and susceptibilities [24] …”

Section: Correlatorsmentioning

confidence: 97%

Melting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD

Aarts

Allton

Kim

et al. 2013

J. High Energ. Phys.

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“…However, this temperature dependence is due to the zero-mode contribution, i.e., a peak in the finite temperature spectral functions at ω 0 [932,933]. After subtracting the zeromode contribution, the Euclidean correlation functions show no temperature dependence within the uncertainties [934]. Thus melting of the quarkonium states is not visible in the Euclidean correlation functions.…”

Section: Quarkonium Spectral Functions and Quarkonium Potentialmentioning

confidence: 93%

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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“…week ending 11 FEBRUARY 2011 that this contribution can interfere with meson spectroscopy [30], which has cast doubt on the status of results for the melting or survival of charmonium at high temperature [30,31].…”

Section: H Y S I C a L R E V I E W L E T T E R Smentioning

confidence: 99%

Bottomonium above deconfinement from lattice non-relativistic QCD

Aarts¹,

Allton²,

Kim³

et al. 2012

AIP Conference Proceedings

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We study the temperature dependence of bottomonium for temperatures in the range 0:4T c < T < 2:1T c , using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for N f ¼ 2 light flavors on a highly anisotropic lattice. We find that the Ç is insensitive to the temperature in this range, while the b propagators show a crossover from the exponential decay characterizing the hadronic phase to a power-law behavior consistent with nearly free dynamics at T ' 2T c .

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On the temperature dependence of quarkonium correlators

Cited by 52 publications

References 56 publications

Melting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD

Melting of P wave bottomonium states in the quark-gluon plasma from lattice NRQCD

Heavy quarkonium: progress, puzzles, and opportunities

Bottomonium above deconfinement from lattice non-relativistic QCD

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