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Signatures of charmonium modification in spatial correlation functions

F. Karsch1,2,*, E. Laermann1,†, Swagato Mukherjee2,‡, and P. Petreczky2,§

  • 1Fakultät für Physik, Universität Bielefeld, Bielefeld 33615, Germany
  • 2Brookhaven National Laboratory, Upton New York 11973, USA

  • *karsch@bnl.gov
  • †edwin@physik.uni-bielefeld.de
  • ‡swagato@bnl.gov
  • §petreczk@bnl.gov
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Phys. Rev. D 85, 114501 – Published 4 June, 2012

DOI: https://doi.org/10.1103/PhysRevD.85.114501

Abstract

We study spatial correlation functions of charmonium in 2+1 flavor QCD using an improved staggered formulation. Contrary to the temporal correlation functions the spatial correlation functions exhibit a strong temperature dependence above the QCD transition temperature. Above this temperature they are sensitive to temporal boundary conditions. Both features become significant at a temperature close to 1.5Tc and suggest corresponding modifications of charmonium spectral functions.

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Phys. Rev. D 85, 114501– Published 4 June, 2012
  • Received 11 April 2012
Article part of CHORUS

© 2012 American Physical Society

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