Constraining the Initial Conditions and Temperature Dependent Viscosity with Three-Particle Correlations in Au+Au Collisions

Authors

• L. Adamczyk, AGH University of Science and Technology, Poland
• James K. Adkins, University of KentuckyFollow
• G. Agakishiev, Joint Institute for Nuclear Research, Russia
• M. M. Aggarwal, Panjab University, India
• Z. Ahammed, Variable Energy Cyclotron Centre, India
• N. N. Ajitanand, State University of New York - Stony Brook
• I. Alekseev, Alikhanov Institute for Theoretical and Experimental Physics, Russia
• D. M. Anderson, Texas A & M University
• R. Aoyama, University of Tsukuba, Japan
• A. Aparin, Joint Institute for Nuclear Research, Russia
• D. Arkhipkin, Brookhaven National Laboratory
• E. C. Aschenauer, Brookhaven National Laboratory
• M. U. Ashraf, Tsinghua University, China
• A. Attri, Panjab University, India
• G. S. Averichev, Joint Institute for Nuclear Research, Russia
• X. Bai, Central China Normal University, China
• V. Bairathi, National Institute of Science Education and Research, India
• A. Behera, State University of New York - Stony Brook
• R. Bellwied, University of Houston
• A. Bhasin, University of Jammu, India
• A. K. Bhati, Panjab University, India
• P. Bhattarai, The University of Texas at Austin
• J. Bielcik, Czech Technical University in Prague, Czech Republic
• J. Bielcikova, Nuclear Physics Institute AS CR, Czech Republic
• L. C. Bland, Brookhaven National Laboratory
• I. G. Bordyuzhin, Alikhanov Institute for Theoretical and Experimental Physics, Russia
• J. Bouchet, Kent State University
• J. D. Brandenburg, Rice University
• A. V. Brandin, National Research Nuclear Univeristy MEPhI, Russia
• D. Brown, Lehigh University
• Renee H. Fatemi, University of KentuckyFollow
• Suvarna Ramachandran, University of KentuckyFollow

Abstract

We present three-particle mixed-harmonic correlations ⟨cos(mф_α + nф_b – (m + n)ф_c)⟩ for harmonics m, n = 1 – 3 for charged particles in √s_NN = 200 GeV Au+Au collisions at RHIC. These measurements provide information on the three-dimensional structure of the initial collision zone and are important for constraining models of a subsequent low-viscosity quark–gluon plasma expansion phase. We investigate correlations between the first, second and third harmonics predicted as a consequence of fluctuations in the initial state. The dependence of the correlations on the pseudorapidity separation between particles show hints of a breaking of longitudinal invariance. We compare our results to a number of state-of-the art hydrodynamic calculations with different initial states and temperature dependent viscosities. These measurements provide important steps towards constraining the temperature dependent viscosity and longitudinal structure of the initial state at RHIC.

Document Type

Article

Publication Date

3-10-2019

Notes/Citation Information

Published in Physical Letters B, v. 790, p. 81-88.

© 2018 The Author. Published by Elsevier B.V.

This is an open access article under the CC BY license (https://creativecommons.org/licenses/by/4.0/).

Due to the large number of authors, only the first 30 and the authors affiliated with the University of Kentucky are listed in the author section above. For the complete list of authors, please download this article or visit: https://doi.org/10.1016/j.physletb.2018.10.075

This group of authors is collectively known as the STAR Collaboration.

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.physletb.2018.10.075

Funding Information

Funded by SCOAP³.

This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, the Ministry of Education and Science of the Russian Federation, National Natural Science Foundation of China, Chinese Academy of Sciences, the Ministry of Science and Technology of the People's Republic of China and Ministry of Education of the People's Republic of China, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, ROSATOM of Russia and German Bundesministerium für Bildung, Wissenschaft, Forschung und Technologie (BMBF) and the Helmholtz Association.

Repository Citation

Adamczyk, L.; Adkins, James K.; Agakishiev, G.; Aggarwal, M. M.; Ahammed, Z.; Ajitanand, N. N.; Alekseev, I.; Anderson, D. M.; Aoyama, R.; Aparin, A.; Arkhipkin, D.; Aschenauer, E. C.; Ashraf, M. U.; Attri, A.; Averichev, G. S.; Bai, X.; Bairathi, V.; Behera, A.; Bellwied, R.; Bhasin, A.; Bhati, A. K.; Bhattarai, P.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Bordyuzhin, I. G.; Bouchet, J.; Brandenburg, J. D.; Brandin, A. V.; Brown, D.; Fatemi, Renee H.; and Ramachandran, Suvarna, "Constraining the Initial Conditions and Temperature Dependent Viscosity with Three-Particle Correlations in Au+Au Collisions" (2019). Physics and Astronomy Faculty Publications. 658.
https://uknowledge.uky.edu/physastron_facpub/658