Energy dependence of intermittency for charged hadrons in Au+Au collisions at RHIC

The STAR collaboration

doi:10.1016/j.physletb.2023.138165

Energy dependence of intermittency for charged hadrons in Au+Au collisions at RHIC

The STAR collaboration

Chemistry

American University in Cairo
Texas A&M University
Czech Technical University in Prague
AGH University of Krakow
Ohio State University
Panjab University
Variable Energy Cyclotron Centre India
Brookhaven National Laboratory
Indian Institute of Technology Patna
Abilene Christian University
Universidad de Tarapacá
University of California at Riverside
University of Houston
University of Jammu
Stony Brook University
Czech Academy of Sciences
Chinese Academy of Sciences
Yale University
University of California at Davis
Lawrence Berkeley National Laboratory
University of California at Los Angeles
Indiana University Bloomington
National Institute of Technology, Durgapur
Shandong University
Fudan University
Tsinghua University
University of California at Berkeley
Eötvös Loránd University
University of Illinois at Chicago
Heidelberg University

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au+Au collisions at s_{_NN} = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at mid-rapidity and within the transverse momentum phase space. We observe a power-law behavior of scaled factorial moments in Au+Au collisions and a decrease in the extracted scaling exponent (ν) from peripheral to central collisions. The ν is consistent with a constant for different collisions energies in the mid-central (10-40%) collisions. Moreover, the ν in the 0-5% most central Au+Au collisions exhibits a non-monotonic energy dependence that reaches a minimum around s_{_NN} = 27 GeV. The physics implications on the QCD phase structure are discussed.

Original language	English
Article number	138165
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	845
DOIs	https://doi.org/10.1016/j.physletb.2023.138165
State	Published - Oct 10 2023

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10.1016/j.physletb.2023.138165

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@article{dcd527dab1fa4bf99aa4ad5d40a47da7,

title = "Energy dependence of intermittency for charged hadrons in Au+Au collisions at RHIC",

abstract = "Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au+Au collisions at s NN = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at mid-rapidity and within the transverse momentum phase space. We observe a power-law behavior of scaled factorial moments in Au+Au collisions and a decrease in the extracted scaling exponent (ν) from peripheral to central collisions. The ν is consistent with a constant for different collisions energies in the mid-central (10-40\%) collisions. Moreover, the ν in the 0-5\% most central Au+Au collisions exhibits a non-monotonic energy dependence that reaches a minimum around s NN = 27 GeV. The physics implications on the QCD phase structure are discussed.",

author = "\{The STAR collaboration\} and Abdulhamid, \{M. I.\} and Aboona, \{B. E.\} and J. Adam and L. Adamczyk and Adams, \{J. R.\} and I. Aggarwal and Aggarwal, \{M. M.\} and Z. Ahammed and Anderson, \{D. M.\} and Aschenauer, \{E. C.\} and S. Aslam and J. Atchison and V. Bairathi and W. Baker and \{Ball Cap\}, \{J. G.\} and K. Barish and R. Bellwied and P. Bhagat and A. Bhasin and S. Bhatta and J. Bielcik and J. Bielcikova and Brandenburg, \{J. D.\} and Cai, \{X. Z.\} and H. Caines and \{Calder{\'o}n de la Barca S{\'a}nchez\}, M. and D. Cebra and J. Ceska and I. Chakaberia and P. Chaloupka and Chan, \{B. K.\} and Z. Chang and A. Chatterjee and D. Chen and J. Chen and Chen, \{J. H.\} and Z. Chen and J. Cheng and Y. Cheng and S. Choudhury and W. Christie and X. Chu and Crawford, \{H. J.\} and M. Csan{\'a}d and G. Dale-Gau and A. Das and M. Daugherity and Deppner, \{I. M.\} and J. Jia and R. Lacey",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2023",

month = oct,

day = "10",

doi = "10.1016/j.physletb.2023.138165",

language = "English",

volume = "845",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

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TY - JOUR

T1 - Energy dependence of intermittency for charged hadrons in Au+Au collisions at RHIC

AU - The STAR collaboration

AU - Abdulhamid, M. I.

AU - Aboona, B. E.

AU - Adam, J.

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Aggarwal, I.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Anderson, D. M.

AU - Aschenauer, E. C.

AU - Aslam, S.

AU - Atchison, J.

AU - Bairathi, V.

AU - Baker, W.

AU - Ball Cap, J. G.

AU - Barish, K.

AU - Bellwied, R.

AU - Bhagat, P.

AU - Bhasin, A.

AU - Bhatta, S.

AU - Bielcik, J.

AU - Bielcikova, J.

AU - Brandenburg, J. D.

AU - Cai, X. Z.

AU - Caines, H.

AU - Calderón de la Barca Sánchez, M.

AU - Cebra, D.

AU - Ceska, J.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chan, B. K.

AU - Chang, Z.

AU - Chatterjee, A.

AU - Chen, D.

AU - Chen, J.

AU - Chen, J. H.

AU - Chen, Z.

AU - Cheng, J.

AU - Cheng, Y.

AU - Choudhury, S.

AU - Christie, W.

AU - Chu, X.

AU - Crawford, H. J.

AU - Csanád, M.

AU - Dale-Gau, G.

AU - Das, A.

AU - Daugherity, M.

AU - Deppner, I. M.

AU - Jia, J.

AU - Lacey, R.

PY - 2023/10/10

Y1 - 2023/10/10

N2 - Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au+Au collisions at s NN = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at mid-rapidity and within the transverse momentum phase space. We observe a power-law behavior of scaled factorial moments in Au+Au collisions and a decrease in the extracted scaling exponent (ν) from peripheral to central collisions. The ν is consistent with a constant for different collisions energies in the mid-central (10-40%) collisions. Moreover, the ν in the 0-5% most central Au+Au collisions exhibits a non-monotonic energy dependence that reaches a minimum around s NN = 27 GeV. The physics implications on the QCD phase structure are discussed.

AB - Density fluctuations near the QCD critical point can be probed via an intermittency analysis in relativistic heavy-ion collisions. We report the first measurement of intermittency in Au+Au collisions at s NN = 7.7-200 GeV measured by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC). The scaled factorial moments of identified charged hadrons are analyzed at mid-rapidity and within the transverse momentum phase space. We observe a power-law behavior of scaled factorial moments in Au+Au collisions and a decrease in the extracted scaling exponent (ν) from peripheral to central collisions. The ν is consistent with a constant for different collisions energies in the mid-central (10-40%) collisions. Moreover, the ν in the 0-5% most central Au+Au collisions exhibits a non-monotonic energy dependence that reaches a minimum around s NN = 27 GeV. The physics implications on the QCD phase structure are discussed.

UR - https://www.scopus.com/pages/publications/85171634196

U2 - 10.1016/j.physletb.2023.138165

DO - 10.1016/j.physletb.2023.138165

M3 - Article

AN - SCOPUS:85171634196

SN - 0370-2693

VL - 845

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 138165

ER -

Energy dependence of intermittency for charged hadrons in Au+Au collisions at RHIC

Abstract

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