QCD matter with a crossover and a first-order phase transition

Christopher J. Plumberg, Thomas Welle, Joseph I. Kapusta

Research output: Contribution to journalConference articlepeer-review

Abstract

We present a phenomenological parametrization of the phase diagram of QCD as a function of temperature T and baryochemical potential µ. The parametrization is constructed by introducing a switching function which controls the nature of the transition between the Hadron-Resonance Gas (HRG) and Quark-Gluon Plasma (QGP) phases of nuclear matter, such that the equation of state (EOS) possesses a rapid crossover at large T and small µ, a critical point placed anywhere along the phase transition line, and a first-order transition at small T and large µ. This EOS offers a convenient phenomenological tool for assessing the possible effects of the conjectured QCD critical point on heavy-ion observables.

Original languageEnglish (US)
JournalProceedings of Science
Volume347
StatePublished - 2018
Event2018 Corfu Summer Institute "School and Workshops on Elementary Particle Physics and Gravity", CORFU 2018 - Corfu, Greece
Duration: Aug 31 2018Sep 28 2018

Bibliographical note

Funding Information:
CP thanks Aleksi Kurkela and Jorge Noronha for useful discussions. This work was supported by the U.S. Department of Energy (DOE) Grant No. DE-FG02-87ER40328. The authors also gratefully acknowledge the Minnesota Supercomputing Institute (MSI) at the University of Minnesota for providing resources that contributed to the results presented in this work.

Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.

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