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Title: Quarkonium correlators and spectral functions at zero and finite temperature

Abstract

We study quarkonium correlators and spectral functions at zero and finite temperature using the anisotropic Fermilab lattice formulation with anisotropy {xi}=2 and 4. To control cut-off effects we use several different lattice spacings. The spectral functions were extracted from lattice correlators with maximum entropy method based on a new algorithm. We find evidence for the survival of 1S quarkonium states in the deconfined medium till relatively high temperatures as well as for dissolution of 1P quarkonium states right above the deconfinement temperature.

Authors:
; ; ;  [1];  [2];  [3];  [2]
  1. Institute of Physics, BME Budapest, Budafoki ut 8, H-1111 Budapest (Hungary)
  2. (United States)
  3. (Denmark)
Publication Date:
OSTI Identifier:
20935189
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.75.014506; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ALGORITHMS; ANISOTROPY; CALCULATION METHODS; ENTROPY; FERMILAB; QUARKONIUM; SPECTRAL FUNCTIONS

Citation Formats

Jakovac, A., Petreczky, P., Petrov, K., Velytsky, A., Physics Department, Brookhaven National Laboratory, Upton New York 11973, Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen O, and Department of Physics and Astronomy, UCLA, Los Angeles, California 90095-1547. Quarkonium correlators and spectral functions at zero and finite temperature. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.014506.
Jakovac, A., Petreczky, P., Petrov, K., Velytsky, A., Physics Department, Brookhaven National Laboratory, Upton New York 11973, Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen O, & Department of Physics and Astronomy, UCLA, Los Angeles, California 90095-1547. Quarkonium correlators and spectral functions at zero and finite temperature. United States. doi:10.1103/PHYSREVD.75.014506.
Jakovac, A., Petreczky, P., Petrov, K., Velytsky, A., Physics Department, Brookhaven National Laboratory, Upton New York 11973, Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen O, and Department of Physics and Astronomy, UCLA, Los Angeles, California 90095-1547. Mon . "Quarkonium correlators and spectral functions at zero and finite temperature". United States. doi:10.1103/PHYSREVD.75.014506.
@article{osti_20935189,
title = {Quarkonium correlators and spectral functions at zero and finite temperature},
author = {Jakovac, A. and Petreczky, P. and Petrov, K. and Velytsky, A. and Physics Department, Brookhaven National Laboratory, Upton New York 11973 and Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen O and Department of Physics and Astronomy, UCLA, Los Angeles, California 90095-1547},
abstractNote = {We study quarkonium correlators and spectral functions at zero and finite temperature using the anisotropic Fermilab lattice formulation with anisotropy {xi}=2 and 4. To control cut-off effects we use several different lattice spacings. The spectral functions were extracted from lattice correlators with maximum entropy method based on a new algorithm. We find evidence for the survival of 1S quarkonium states in the deconfined medium till relatively high temperatures as well as for dissolution of 1P quarkonium states right above the deconfinement temperature.},
doi = {10.1103/PHYSREVD.75.014506},
journal = {Physical Review. D, Particles Fields},
number = 1,
volume = 75,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}
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