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Title: Cumulants and correlation functions versus the QCD phase diagram

Abstract

Here, we discuss the relation of particle number cumulants and correlation functions. It is argued that measuring couplings of the genuine multiparticle correlation functions could provide cleaner information on possible nontrivial dynamics in heavy-ion collisions. We also extract integrated multiproton correlation functions from the presently available experimental data on proton cumulants. We find that the STAR data contain significant four-proton correlations, at least at the lower energies, with indication of changing dynamics in central collisions. We also find that these correlations are rather long ranged in rapidity. Finally, using the Ising model, we demonstrate how the signs of the multiproton correlation functions may be used to exclude certain regions of the phase diagram close to the critical point.

Authors:
 [1];  [2];  [2]
  1. AGH - Univ. of Science and Technology, Krakow (Poland)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1379847
Alternate Identifier(s):
OSTI ID: 1356870
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 95; Journal Issue: 5; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Bzdak, Adam, Koch, Volker, and Strodthoff, Nils. Cumulants and correlation functions versus the QCD phase diagram. United States: N. p., 2017. Web. doi:10.1103/PhysRevC.95.054906.
Bzdak, Adam, Koch, Volker, & Strodthoff, Nils. Cumulants and correlation functions versus the QCD phase diagram. United States. https://doi.org/10.1103/PhysRevC.95.054906
Bzdak, Adam, Koch, Volker, and Strodthoff, Nils. Fri . "Cumulants and correlation functions versus the QCD phase diagram". United States. https://doi.org/10.1103/PhysRevC.95.054906. https://www.osti.gov/servlets/purl/1379847.
@article{osti_1379847,
title = {Cumulants and correlation functions versus the QCD phase diagram},
author = {Bzdak, Adam and Koch, Volker and Strodthoff, Nils},
abstractNote = {Here, we discuss the relation of particle number cumulants and correlation functions. It is argued that measuring couplings of the genuine multiparticle correlation functions could provide cleaner information on possible nontrivial dynamics in heavy-ion collisions. We also extract integrated multiproton correlation functions from the presently available experimental data on proton cumulants. We find that the STAR data contain significant four-proton correlations, at least at the lower energies, with indication of changing dynamics in central collisions. We also find that these correlations are rather long ranged in rapidity. Finally, using the Ising model, we demonstrate how the signs of the multiproton correlation functions may be used to exclude certain regions of the phase diagram close to the critical point.},
doi = {10.1103/PhysRevC.95.054906},
journal = {Physical Review C},
number = 5,
volume = 95,
place = {United States},
year = {Fri May 12 00:00:00 EDT 2017},
month = {Fri May 12 00:00:00 EDT 2017}
}

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Cited by: 40 works
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Works referenced in this record:

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  • GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
  • DOI: 10.15120/gsi-2018-00465

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text, January 2016


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text, January 1998


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text, January 2004


Works referencing / citing this record:

Final state hadronic rescattering with UrQMD
text, January 2018

  • Steinheimer, J.; Vovchenko, V.; Aichelin, J.
  • GSI Helmholtzzentrum fuer Schwerionenforschung, GSI, Darmstadt
  • DOI: 10.15120/gsi-2019-00366

Final state hadronic rescattering with UrQMD
journal, January 2018


Dynamical evolution of critical fluctuations and its observation in heavy ion collisions
text, January 2017


Rapidity dependence of proton cumulants and correlation functions
text, January 2017


Centrality fluctuations in heavy-ion collisions
text, January 2018