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

doi:10.1016/j.physletb.2023.138165

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

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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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Publisher Copyright:
© 2023 The Author(s)

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1016/j.physletb.2023.138165

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@article{a2e57787334b41058ab3c3effa6d4536,

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 = "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 A. Dhamija and R. Fatemi",

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",

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TY - JOUR

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

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 - Dhamija, A.

AU - Fatemi, 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 - http://www.scopus.com/inward/record.url?scp=85171634196&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85171634196&partnerID=8YFLogxK

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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