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Title: Three-particle correlations in a multiphase transport model

Abstract

Here, we study three-particle mixed harmonic correlations in relativistic heavy ion collisions by considering the observable C m,n,m+n= cos(mφ 1+nφ 2-(m +n)φ 3), where φ 1,2,3 are azimuthal angles of all particle triplets, using a multiphase transport model. We find that except for C 123, these results on the centrality dependence of C 112, C 224 and C 235 as well as the relative pseudorapidity dependence of C 123 and C 224 in Au+Au collisions at √s=200 GeV agree reasonable well with the experimental data from the STAR Collaboration. We also discuss the implications of our results.

Authors:
 [1];  [1]
  1. Texas A & M Univ., College Station, TX (United States). Cyclotron Inst. and Dept. of Physics and Astronomy
Publication Date:
Research Org.:
Texas A & M Univ., College Station, TX (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1349532
Alternate Identifier(s):
OSTI ID: 1374588
Grant/Contract Number:
SC0015266
Resource Type:
Journal Article: Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 769; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Anisotropic flow; Two-particle cumulants; Three-particle correlations; AMPT

Citation Formats

Sun, Yifeng, and Ko, Che Ming. Three-particle correlations in a multiphase transport model. United States: N. p., 2017. Web. doi:10.1016/j.physletb.2017.03.068.
Sun, Yifeng, & Ko, Che Ming. Three-particle correlations in a multiphase transport model. United States. doi:10.1016/j.physletb.2017.03.068.
Sun, Yifeng, and Ko, Che Ming. Fri . "Three-particle correlations in a multiphase transport model". United States. doi:10.1016/j.physletb.2017.03.068.
@article{osti_1349532,
title = {Three-particle correlations in a multiphase transport model},
author = {Sun, Yifeng and Ko, Che Ming},
abstractNote = {Here, we study three-particle mixed harmonic correlations in relativistic heavy ion collisions by considering the observable Cm,n,m+n= cos(mφ1+nφ2-(m +n)φ3), where φ1,2,3 are azimuthal angles of all particle triplets, using a multiphase transport model. We find that except for C123, these results on the centrality dependence of C112, C224 and C235 as well as the relative pseudorapidity dependence of C123 and C224 in Au+Au collisions at √s=200 GeV agree reasonable well with the experimental data from the STAR Collaboration. We also discuss the implications of our results.},
doi = {10.1016/j.physletb.2017.03.068},
journal = {Physics Letters. Section B},
number = C,
volume = 769,
place = {United States},
year = {Fri Mar 31 00:00:00 EDT 2017},
month = {Fri Mar 31 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.physletb.2017.03.068

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  • Here, we study three-particle mixed harmonic correlations in relativistic heavy ion collisions by considering the observable C m,n,m+n= cos(mφ 1+nφ 2-(m +n)φ 3), where φ 1,2,3 are azimuthal angles of all particle triplets, using a multiphase transport model. We find that except for C 123, these results on the centrality dependence of C 112, C 224 and C 235 as well as the relative pseudorapidity dependence of C 123 and C 224 in Au+Au collisions at √s=200 GeV agree reasonable well with the experimental data from the STAR Collaboration. We also discuss the implications of our results.
  • Dihadron azimuthal angle correlations relative to the reaction plane have been investigated in Au+Au collisions at {radical}(s{sub NN})=200 GeV using a multiphase transport model (AMPT). Such reaction plane azimuthal-angle-dependent correlations can shed light on the path-length effect of energy loss of high-transverse-momentum particles propagating through a hot dense medium. The correlations vary with the trigger particle azimuthal angle with respect to the reaction plane direction, {phi}{sub s}={phi}{sub T}-{psi}{sub EP}, which is consistent with the experimental observation by the STAR Collaboration. The dihadron azimuthal angle correlation functions on the away side of the trigger particle present a distinct evolution from amore » single-peak to a broad, possibly double-peak structure when the trigger particle direction goes from in-plane to out-of-plane with the reaction plane. The away-side angular correlation functions are asymmetric with respect to the back-to-back direction in some regions of {phi}{sub s}, which could provide insight into the testing v{sub 1} method for reconstructing the reaction plane. In addition, both the root-mean-square width (W{sub rms}) of the away-side correlation distribution and the splitting parameter (D) between the away-side double peaks increase slightly with {phi}{sub s}, and the average transverse momentum of away-side-associated hadrons shows a strong {phi}{sub s} dependence. Our results indicate that a strong parton cascade and resultant energy loss could play an important role in the appearance of a double-peak structure in the dihadron azimuthal angular correlation function on the away side of the trigger particle.« less
  • The pion source as seen through Hanbuary-Brown-Twiss (HBT) correlations at BNL Relativistic Heavy Ion Collider (RHIC) energies is investigated within the UrQMD approach. We find that the calculated transverse momentum, centrality, and system size dependence of the Pratt-HBT radii R{sub L} and R{sub S} are reasonably well in line with experimental data. The predicted R{sub O} values in central heavy ion collisions are larger as compared to experimental data. The corresponding quantity {radical}(R{sub O}{sup 2}-R{sub S}{sup 2}) of the pion emission source is somewhat larger than experimental estimates.