Azimuthal anisotropy measurement of (multi)strange hadrons in Au+Au collisions at sNN =54.4 GeV

doi:10.1103/PhysRevC.107.024912

Azimuthal anisotropy measurement of (multi)strange hadrons in Au+Au collisions at sNN =54.4 GeV

Physics And Astronomy

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Abstract

Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-ion collisions. In this paper, we present second (v2) and third (v3) order azimuthal anisotropies of KS0, φ, Λ, Ξ, and ω at midrapidity (|y|<1) in Au+Au collisions at sNN=54.4 GeV measured by the STAR detector. The v2 and v3 are measured as a function of transverse momentum and centrality. Their energy dependence is also studied. v3 is found to be more sensitive to the change in the center-of-mass energy than v2. Scaling by constituent quark number is found to hold for v2 within 10%. This observation could be evidence for the development of partonic collectivity in 54.4 GeV Au+Au collisions. Differences in v2 and v3 between baryons and antibaryons are presented, and ratios of v3/v23/2 are studied and motivated by hydrodynamical calculations. The ratio of v2 of φ mesons to that of antiprotons [v2(φ)/v2(p¯)] shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on antiproton v2.

Original language	English
Article number	024912
Journal	Physical Review C
Volume	107
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevC.107.024912
State	Published - Feb 2023

Bibliographical note

Funding Information:
We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nu clear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the Higher Education Sprout Project by Ministry of Education at NCKU, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium für Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science and Technology (MEXT), and Japan Society for the Promotion of Science (JSPS).

Publisher Copyright:
© 2023 American Physical Society.

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevC.107.024912

Cite this

@article{84f78e0829f24285bcf4af23eba89934,

title = "Azimuthal anisotropy measurement of (multi)strange hadrons in Au+Au collisions at sNN =54.4 GeV",

abstract = "Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-ion collisions. In this paper, we present second (v2) and third (v3) order azimuthal anisotropies of KS0, φ, Λ, Ξ, and ω at midrapidity (|y|<1) in Au+Au collisions at sNN=54.4 GeV measured by the STAR detector. The v2 and v3 are measured as a function of transverse momentum and centrality. Their energy dependence is also studied. v3 is found to be more sensitive to the change in the center-of-mass energy than v2. Scaling by constituent quark number is found to hold for v2 within 10%. This observation could be evidence for the development of partonic collectivity in 54.4 GeV Au+Au collisions. Differences in v2 and v3 between baryons and antibaryons are presented, and ratios of v3/v23/2 are studied and motivated by hydrodynamical calculations. The ratio of v2 of φ mesons to that of antiprotons [v2(φ)/v2(p¯)] shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on antiproton v2.",

author = "Abdallah, {M. S.} and Aboona, {B. E.} and J. Adam and L. Adamczyk and Adams, {J. R.} and Adkins, {J. K.} and I. Aggarwal and Aggarwal, {M. M.} and Z. Ahammed and Anderson, {D. M.} and Aschenauer, {E. C.} 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 {Calderon De La Barca Sanchez}, M. and D. Cebra and I. Chakaberia and P. Chaloupka and Chan, {B. K.} and Z. Chang and A. Chatterjee and S. Chattopadhyay and D. Chen and J. Chen and Chen, {J. H.} and X. Chen and Z. Chen and J. Cheng and S. Choudhury and W. Christie and X. Chu and Crawford, {H. J.} and M. Csan{\'a}d and M. Daugherity and Deppner, {I. M.} and A. Dhamija and {Di Carlo}, L. and L. Didenko and R. Fatemi",

note = "Funding Information: We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nu clear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the Higher Education Sprout Project by Ministry of Education at NCKU, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium f{\"u}r Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science and Technology (MEXT), and Japan Society for the Promotion of Science (JSPS). Publisher Copyright: {\textcopyright} 2023 American Physical Society. ",

year = "2023",

month = feb,

doi = "10.1103/PhysRevC.107.024912",

language = "English",

volume = "107",

number = "2",

}

TY - JOUR

T1 - Azimuthal anisotropy measurement of (multi)strange hadrons in Au+Au collisions at sNN =54.4 GeV

AU - Abdallah, M. S.

AU - Aboona, B. E.

AU - Adam, J.

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Adkins, J. K.

AU - Aggarwal, I.

AU - Aggarwal, M. M.

AU - Ahammed, Z.

AU - Anderson, D. M.

AU - Aschenauer, E. C.

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 - Calderon De La Barca Sanchez, M.

AU - Cebra, D.

AU - Chakaberia, I.

AU - Chaloupka, P.

AU - Chan, B. K.

AU - Chang, Z.

AU - Chatterjee, A.

AU - Chattopadhyay, S.

AU - Chen, D.

AU - Chen, J.

AU - Chen, J. H.

AU - Chen, X.

AU - Chen, Z.

AU - Cheng, J.

AU - Choudhury, S.

AU - Christie, W.

AU - Chu, X.

AU - Crawford, H. J.

AU - Csanád, M.

AU - Daugherity, M.

AU - Deppner, I. M.

AU - Dhamija, A.

AU - Di Carlo, L.

AU - Didenko, L.

AU - Fatemi, R.

N1 - Funding Information: We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support. This work was supported in part by the Office of Nu clear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, the Higher Education Sprout Project by Ministry of Education at NCKU, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium für Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science and Technology (MEXT), and Japan Society for the Promotion of Science (JSPS). Publisher Copyright: © 2023 American Physical Society.

PY - 2023/2

Y1 - 2023/2

N2 - Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-ion collisions. In this paper, we present second (v2) and third (v3) order azimuthal anisotropies of KS0, φ, Λ, Ξ, and ω at midrapidity (|y|<1) in Au+Au collisions at sNN=54.4 GeV measured by the STAR detector. The v2 and v3 are measured as a function of transverse momentum and centrality. Their energy dependence is also studied. v3 is found to be more sensitive to the change in the center-of-mass energy than v2. Scaling by constituent quark number is found to hold for v2 within 10%. This observation could be evidence for the development of partonic collectivity in 54.4 GeV Au+Au collisions. Differences in v2 and v3 between baryons and antibaryons are presented, and ratios of v3/v23/2 are studied and motivated by hydrodynamical calculations. The ratio of v2 of φ mesons to that of antiprotons [v2(φ)/v2(p¯)] shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on antiproton v2.

AB - Azimuthal anisotropy of produced particles is one of the most important observables used to access the collective properties of the expanding medium created in relativistic heavy-ion collisions. In this paper, we present second (v2) and third (v3) order azimuthal anisotropies of KS0, φ, Λ, Ξ, and ω at midrapidity (|y|<1) in Au+Au collisions at sNN=54.4 GeV measured by the STAR detector. The v2 and v3 are measured as a function of transverse momentum and centrality. Their energy dependence is also studied. v3 is found to be more sensitive to the change in the center-of-mass energy than v2. Scaling by constituent quark number is found to hold for v2 within 10%. This observation could be evidence for the development of partonic collectivity in 54.4 GeV Au+Au collisions. Differences in v2 and v3 between baryons and antibaryons are presented, and ratios of v3/v23/2 are studied and motivated by hydrodynamical calculations. The ratio of v2 of φ mesons to that of antiprotons [v2(φ)/v2(p¯)] shows centrality dependence at low transverse momentum, presumably resulting from the larger effects from hadronic interactions on antiproton v2.

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U2 - 10.1103/PhysRevC.107.024912

DO - 10.1103/PhysRevC.107.024912

M3 - Article

AN - SCOPUS:85149645456

SN - 2469-9985

VL - 107

JO - Physical Review C

JF - Physical Review C

IS - 2

M1 - 024912

ER -

Azimuthal anisotropy measurement of (multi)strange hadrons in Au+Au collisions at sNN =54.4 GeV

Abstract

Bibliographical note

ASJC Scopus subject areas

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