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Related Experiment Video

Updated: Jul 7, 2026

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

Color screening melts quarkonium.

Agnes Mócsy1, Péter Petreczky

  • 1RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973, USA. mocsy@bnl.gov

Physical Review Letters
|February 1, 2008
PubMed
Summary

We calculated quarkonium properties in quark-gluon plasma using lattice QCD. Our findings suggest lower dissociation temperatures for quarkonium states than previously reported in scientific literature.

Area of Science:

  • Nuclear Physics
  • High-Energy Physics
  • Quantum Chromodynamics

Background:

  • Quarkonium states are essential probes of the quark-gluon plasma (QGP).
  • Understanding quarkonium behavior in the QGP is crucial for characterizing this state of matter.

Purpose of the Study:

  • To calculate quarkonium spectral functions within a quark-gluon plasma environment.
  • To estimate the binding energy and thermal width of quarkonium states.
  • To determine the dissociation temperatures of quarkonium states.

Main Methods:

  • Utilized a potential model derived from full Quantum Chromodynamics (QCD) lattice calculations.
  • Calculated the free energy of a static quark-antiquark pair in the QGP.
  • Estimated spectral functions, binding energies, and thermal widths for various quarkonium states.

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Related Experiment Videos

Last Updated: Jul 7, 2026

Setting Limits on Supersymmetry Using Simplified Models
07:46

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Published on: November 15, 2013

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

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Main Results:

  • Quarkonium spectral functions were calculated in the QGP.
  • Binding energies and thermal widths of different quarkonium states were estimated.
  • The upper limit for quarkonium dissociation temperatures was found to be significantly lower than previously suggested.

Conclusions:

  • The study provides new estimates for quarkonium dissociation temperatures in the QGP.
  • Findings challenge existing literature on the thermal stability of quarkonium states.
  • Results necessitate a re-evaluation of quarkonium as a QGP probe at certain temperatures.