Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior

PHENIX Collaboration

doi:10.1103/PhysRevLett.120.062302

Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior

PHENIX Collaboration

Relativistic Nuclear Physics

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

60 Scopus citations

Abstract

Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity.

Original language	English
Article number	062302
Journal	Physical Review Letters
Volume	120
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.120.062302
State	Published - Feb 6 2018

Funding

We thank the staff of the Collider-Accelerator and physics departments at Brookhaven National Laboratory and the staff of the other PHENIX participating institutions for their vital contributions. We acknowledge support from the Office of Nuclear Physics in the Office of Science of the Department of Energy, the National Science Foundation, the Abilene Christian University Research Council, the Research Foundation of SUNY, and the Dean of the College of Arts and Sciences, Vanderbilt University (U.S.), the Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), the Conselho Nacional de Desenvolvimento Científico e Tecnológico and Fundação de Amparo à Pesquisa do Estado de São Paulo (Brazil), the Natural Science Foundation of China (People’s Republic of China), the Croatian Science Foundation and the Ministry of Science and Education (Croatia), the Ministry of Education, Youth and Sports (Czech Republic), the Centre National de la Recherche Scientifique, Commissariat à l’Énergie Atomique, and the Institut National de Physique Nucléaire et de Physique des Particules (France), the Bundesministerium für Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), the National Science Fund, OTKA, EFOP, and the Ch. Simonyi Fund (Hungary), the Department of Atomic Energy and the Department of Science and Technology (India), the Israel Science Foundation (Israel), the Basic Science Research Program through NRF of the Ministry of Education (Korea), the Physics Department, Lahore University of Management Sciences (Pakistan), the Ministry of Education and Science, the Russian Academy of Sciences, the Federal Agency of Atomic Energy (Russia), the VR and Wallenberg Foundation (Sweden), the U.S. Civilian Research and Development Foundation for the Independent States of the Former Soviet Union, the Hungarian American Enterprise Scholarship Fund, and the US-Israel Binational Science Foundation.

Funders	Funder number
Abilene Christian University Research Council
Centre National de la Recherche Scientifique, Commissariat à l’Énergie Atomique
EFOP
Research Foundation of SUNY
Wallenberg Foundation
National Science Foundation	1712953
National Science Foundation
U.S. Department of Energy
CRDF Global
Alexander von Humboldt-Stiftung
Nuclear Physics
Vanderbilt University
Lahore University of Management Sciences
College of Arts and Sciences, Boston University
Department of Physics, Harvard University
Hungarian-American Enterprise Scholarship Fund
Department of Science and Technology, Ministry of Science and Technology, India
Department of Atomic Energy, Government of India
Deutscher Akademischer Austauschdienst
Japan Society for the Promotion of Science	15H03664, 16J04004, 16K17701
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
United States-Israel Binational Science Foundation
Fundação de Amparo à Pesquisa do Estado de São Paulo
National Natural Science Foundation of China
Ministerstvo Školství, Mládeže a Tělovýchovy
Bundesministerium für Bildung und Forschung
Russian Academy of Sciences
Ministry of Education
Bulgarian National Science Fund
Haridus- ja Teadusministeerium
Hungarian Scientific Research Fund
Conselho Nacional de Desenvolvimento Científico e Tecnológico
National Research Foundation of Korea
Israel Science Foundation
Vetenskapsrådet
Hrvatska Zaklada za Znanost
Ministry of Education and Science
Institut National de Physique Nucléaire et de Physique des Particules
Federal Agency of Atomic Energy of the Russian Federation

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10.1103/PhysRevLett.120.062302

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title = "Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior",

abstract = "Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity.",

author = "{PHENIX Collaboration} and C. Aidala and Y. Akiba and M. Alfred and V. Andrieux and K. Aoki and N. Apadula and H. Asano and C. Ayuso and B. Azmoun and V. Babintsev and A. Bagoly and Bandara, {N. S.} and Barish, {K. N.} and S. Bathe and A. Bazilevsky and M. Beaumier and R. Belmont and A. Berdnikov and Y. Berdnikov and Blau, {D. S.} and M. Boer and Bok, {J. S.} and Brooks, {M. L.} and J. Bryslawskyj and V. Bumazhnov and C. Butler and S. Campbell and {Canoa Roman}, V. and R. Cervantes and Chi, {C. Y.} and M. Chiu and Choi, {I. J.} and Choi, {J. B.} and Z. Citron and M. Connors and N. Cronin and M. Csan{\'a}d and T. Cs{\"o}rgo and Danley, {T. W.} and Daugherity, {M. S.} and G. David and K. Deblasio and K. Dehmelt and A. Denisov and A. Deshpande and Desmond, {E. J.} and A. Dion and D. Dixit and Lajoie, {J. G.} and Read, {K. F.}",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = feb,

day = "6",

doi = "10.1103/PhysRevLett.120.062302",

language = "English",

volume = "120",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

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TY - JOUR

T1 - Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior

AU - PHENIX Collaboration

AU - Aidala, C.

AU - Akiba, Y.

AU - Alfred, M.

AU - Andrieux, V.

AU - Aoki, K.

AU - Apadula, N.

AU - Asano, H.

AU - Ayuso, C.

AU - Azmoun, B.

AU - Babintsev, V.

AU - Bagoly, A.

AU - Bandara, N. S.

AU - Barish, K. N.

AU - Bathe, S.

AU - Bazilevsky, A.

AU - Beaumier, M.

AU - Belmont, R.

AU - Berdnikov, A.

AU - Berdnikov, Y.

AU - Blau, D. S.

AU - Boer, M.

AU - Bok, J. S.

AU - Brooks, M. L.

AU - Bryslawskyj, J.

AU - Bumazhnov, V.

AU - Butler, C.

AU - Campbell, S.

AU - Canoa Roman, V.

AU - Cervantes, R.

AU - Chi, C. Y.

AU - Chiu, M.

AU - Choi, I. J.

AU - Choi, J. B.

AU - Citron, Z.

AU - Connors, M.

AU - Cronin, N.

AU - Csanád, M.

AU - Csörgo, T.

AU - Danley, T. W.

AU - Daugherity, M. S.

AU - David, G.

AU - Deblasio, K.

AU - Dehmelt, K.

AU - Denisov, A.

AU - Deshpande, A.

AU - Desmond, E. J.

AU - Dion, A.

AU - Dixit, D.

AU - Lajoie, J. G.

AU - Read, K. F.

PY - 2018/2/6

Y1 - 2018/2/6

N2 - Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity.

AB - Recently, multiparticle-correlation measurements of relativistic p/d/He3+Au, p+Pb, and even p+p collisions show surprising collective signatures. Here, we present beam-energy-scan measurements of two-, four-, and six-particle angular correlations in d+Au collisions at sNN=200, 62.4, 39, and 19.6 GeV. We also present measurements of two- and four-particle angular correlations in p+Au collisions at sNN=200 GeV. We find the four-particle cumulant to be real valued for d+Au collisions at all four energies. We also find that the four-particle cumulant in p+Au has the opposite sign as that in d+Au. Further, we find that the six-particle cumulant agrees with the four-particle cumulant in d+Au collisions at 200 GeV, indicating that nonflow effects are subdominant. These observations provide strong evidence that the correlations originate from the initial geometric configuration, which is then translated into the momentum distribution for all particles, commonly referred to as collectivity.

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U2 - 10.1103/PhysRevLett.120.062302

DO - 10.1103/PhysRevLett.120.062302

M3 - Article

C2 - 29481251

AN - SCOPUS:85041893613

SN - 0031-9007

VL - 120

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6

M1 - 062302

ER -

Measurements of Multiparticle Correlations in d+Au Collisions at 200, 62.4, 39, and 19.6 GeV and p+Au Collisions at 200 GeV and Implications for Collective Behavior

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