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Title: Impact of resonance decays on critical point signals in net-proton fluctuations

Abstract

The non-monotonic beam energy dependence of the higher cumulants of net-proton fluctuations is a widely studied signature of the conjectured presence of a critical point in the QCD phase diagram. In this work we study the effect of resonance decays on critical fluctuations. We show that resonance effects reduce the signatures of critical fluctuations, but that for reasonable parameter choices critical effects in the net-proton cumulants survive. The relative role of resonance decays has a weak dependence on the order of the cumulants studied with a slightly stronger suppression of critical effects for higher-order cumulants.

Authors:
ORCiD logo [1];  [2];  [3];  [1]
  1. North Carolina State Univ., Raleigh, NC (United States). Dept. of Physics
  2. Univ. of Nantes (France). Ecole des Mines de Nantes. SUBATECH; Duke Univ., Durham, NC (United States). Dept. of Physics
  3. Duke Univ., Durham, NC (United States). Dept. of Physics
Publication Date:
Research Org.:
North Carolina State Univ., Raleigh, NC (United States); Duke Univ., Durham, NC (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Org.:
Univ. of Nantes (France)
OSTI Identifier:
1349709
Alternate Identifier(s):
OSTI ID: 1361684
Grant/Contract Number:  
FG02-03ER41260; FG02-05ER41367
Resource Type:
Journal Article: Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 77; Journal Issue: 4; Journal ID: ISSN 1434-6044
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Bluhm, Marcus, Nahrgang, Marlene, Bass, Steffen A., and Schäfer, Thomas. Impact of resonance decays on critical point signals in net-proton fluctuations. United States: N. p., 2017. Web. doi:10.1140/epjc/s10052-017-4771-3.
Bluhm, Marcus, Nahrgang, Marlene, Bass, Steffen A., & Schäfer, Thomas. Impact of resonance decays on critical point signals in net-proton fluctuations. United States. doi:10.1140/epjc/s10052-017-4771-3.
Bluhm, Marcus, Nahrgang, Marlene, Bass, Steffen A., and Schäfer, Thomas. Mon . "Impact of resonance decays on critical point signals in net-proton fluctuations". United States. doi:10.1140/epjc/s10052-017-4771-3.
@article{osti_1349709,
title = {Impact of resonance decays on critical point signals in net-proton fluctuations},
author = {Bluhm, Marcus and Nahrgang, Marlene and Bass, Steffen A. and Schäfer, Thomas},
abstractNote = {The non-monotonic beam energy dependence of the higher cumulants of net-proton fluctuations is a widely studied signature of the conjectured presence of a critical point in the QCD phase diagram. In this work we study the effect of resonance decays on critical fluctuations. We show that resonance effects reduce the signatures of critical fluctuations, but that for reasonable parameter choices critical effects in the net-proton cumulants survive. The relative role of resonance decays has a weak dependence on the order of the cumulants studied with a slightly stronger suppression of critical effects for higher-order cumulants.},
doi = {10.1140/epjc/s10052-017-4771-3},
journal = {European Physical Journal. C, Particles and Fields},
number = 4,
volume = 77,
place = {United States},
year = {Mon Apr 03 00:00:00 EDT 2017},
month = {Mon Apr 03 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1140/epjc/s10052-017-4771-3

Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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