Baryon density correlations in high temperature hadronic matter

Claude Bernard, Thomas A. DeGrand, Carleton DeTar, Steven Gottlieb, Alex Krasnitz, Robert L. Sugar, Douglas Toussaint

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

As part of an ongoing effort to characterize the high temperature phase of QCD, in a numerical simulation using the staggered fermion scheme, we measure the quark baryon density in the vicinity of a fixed test quark at high temperature and compare it with similar measurements at low temperature and at the crossover temperature. We find an extremely weak correlation at high temperature, suggesting that small color singlet clusters are unimportant in the thermal ensemble. We also find that at T=0.75 Tc the total induced quark number shows a surprisingly large component attributable to baryonic screening. A companion simulation of a simple flux tube model produces similar results and also suggests a plausible phenomenological scenario: As the crossover temperature is approached from below, baryonic states proliferate. Above the crossover temperature the mean size of color singlet clusters grows explosively, resulting in an effective electrostatic deconfinement.

Original languageEnglish (US)
Pages (from-to)6051-6062
Number of pages12
JournalPhysical Review D
Volume49
Issue number11
DOIs
StatePublished - Jan 1 1994

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Bernard, C., DeGrand, T. A., DeTar, C., Gottlieb, S., Krasnitz, A., Sugar, R. L., & Toussaint, D. (1994). Baryon density correlations in high temperature hadronic matter. Physical Review D, 49(11), 6051-6062. https://doi.org/10.1103/PhysRevD.49.6051