Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p+Au collisions at s NN =200 GeV

PHENIX Collaboration

doi:10.1103/PhysRevC.95.034910

Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p+Au collisions at s NN =200 GeV

PHENIX Collaboration

Relativistic Nuclear Physics

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

50 Scopus citations

Abstract

We present measurements of long-range angular correlations and the transverse momentum dependence of elliptic flow v2 in high-multiplicity p+Au collisions at sNN=200 GeV. A comparison of these results to previous measurements in high-multiplicity d+Au and He3+Au collisions demonstrates a relation between v2 and the initial collision eccentricity 2, suggesting that the observed momentum-space azimuthal anisotropies in these small systems have a collective origin and reflect the initial geometry. Good agreement is observed between the measured v2 and hydrodynamic calculations for all systems, and an argument disfavoring theoretical explanations based on initial momentum-space domain correlations is presented. The set of measurements presented here allows us to leverage the distinct intrinsic geometry of each of these systems to distinguish between different theoretical descriptions of the long-range correlations observed in small collision systems.

Original language	English
Article number	034910
Journal	Physical Review C
Volume	95
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevC.95.034910
State	Published - Mar 24 2017

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, Abilene Christian University Research Council, Research Foundation of SUNY, and Dean of the College of Arts and Sciences, Vanderbilt University (USA), Ministry of Education, Culture, Sports, Science, and Technology and the Japan Society for the Promotion of Science (Japan), Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo Pesquisa do Estado de Sao Paulo (Brazil), Natural Science Foundation of China (People's Republic of China), Croatian Science Foundation and Ministry of Science and Education (Croatia), Ministry of Education, Youth and Sports (Czech Republic), Centre National de la Recherche Scientifique, Commissariat l'nergie Atomique, and Institut National de Physique Nucleaire et de Physique des Particules (France), Bundesministerium fur Bildung und Forschung, Deutscher Akademischer Austausch Dienst, and Alexander von Humboldt Stiftung (Germany), National Science Fund, OTKA, Kroly Robert University College, and the Ch. Simonyi Fund (Hungary), Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation (Israel), Basic Science Research Program through NRF of the Ministry of Education (Korea), Physics Department, Lahore University of Management Sciences (Pakistan), Ministry of Education and Science, Russian Academy of Sciences, Federal Agency of Atomic Energy (Russia), VR and Wallenberg Foundation (Sweden), the US 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
Commissariat l'nergie Atomique
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico and Fundacao de Amparo Pesquisa do Estado de Sao Paulo
Department of Atomic Energy and Department of Science and Technology (India), Israel Science Foundation
Kroly Robert University College
Research Foundation of SUNY
US Civilian Research and Development Foundation
Wallenberg Foundation
National Science Foundation
U.S. Department of Energy
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
Deutscher Akademischer Austauschdienst
Japan Society for the Promotion of Science	16J04004
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology
United States-Israel Binational Science Foundation
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
National Research Foundation of Korea
Vetenskapsrådet
Hrvatska Zaklada za Znanost
Centre National de la Recherche Scientifique
Ministry of Education and Science
Institut National de Physique Nucléaire et de Physique des Particules
Federal Agency of Atomic Energy of the Russian Federation

Access to Document

10.1103/PhysRevC.95.034910

Cite this

@article{dcbf554c6f644c11a57b5deb351a4435,

title = "Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p+Au collisions at s NN =200 GeV",

abstract = "We present measurements of long-range angular correlations and the transverse momentum dependence of elliptic flow v2 in high-multiplicity p+Au collisions at sNN=200 GeV. A comparison of these results to previous measurements in high-multiplicity d+Au and He3+Au collisions demonstrates a relation between v2 and the initial collision eccentricity 2, suggesting that the observed momentum-space azimuthal anisotropies in these small systems have a collective origin and reflect the initial geometry. Good agreement is observed between the measured v2 and hydrodynamic calculations for all systems, and an argument disfavoring theoretical explanations based on initial momentum-space domain correlations is presented. The set of measurements presented here allows us to leverage the distinct intrinsic geometry of each of these systems to distinguish between different theoretical descriptions of the long-range correlations observed in small collision systems.",

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 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 Do, {J. H.} and Lajoie, {J. G.} and Read, {K. F.}",

note = "Publisher Copyright: {\textcopyright} 2017 American Physical Society.",

year = "2017",

month = mar,

day = "24",

doi = "10.1103/PhysRevC.95.034910",

language = "English",

volume = "95",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p+Au collisions at s NN =200 GeV

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 - 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 - Do, J. H.

AU - Lajoie, J. G.

AU - Read, K. F.

PY - 2017/3/24

Y1 - 2017/3/24

N2 - We present measurements of long-range angular correlations and the transverse momentum dependence of elliptic flow v2 in high-multiplicity p+Au collisions at sNN=200 GeV. A comparison of these results to previous measurements in high-multiplicity d+Au and He3+Au collisions demonstrates a relation between v2 and the initial collision eccentricity 2, suggesting that the observed momentum-space azimuthal anisotropies in these small systems have a collective origin and reflect the initial geometry. Good agreement is observed between the measured v2 and hydrodynamic calculations for all systems, and an argument disfavoring theoretical explanations based on initial momentum-space domain correlations is presented. The set of measurements presented here allows us to leverage the distinct intrinsic geometry of each of these systems to distinguish between different theoretical descriptions of the long-range correlations observed in small collision systems.

AB - We present measurements of long-range angular correlations and the transverse momentum dependence of elliptic flow v2 in high-multiplicity p+Au collisions at sNN=200 GeV. A comparison of these results to previous measurements in high-multiplicity d+Au and He3+Au collisions demonstrates a relation between v2 and the initial collision eccentricity 2, suggesting that the observed momentum-space azimuthal anisotropies in these small systems have a collective origin and reflect the initial geometry. Good agreement is observed between the measured v2 and hydrodynamic calculations for all systems, and an argument disfavoring theoretical explanations based on initial momentum-space domain correlations is presented. The set of measurements presented here allows us to leverage the distinct intrinsic geometry of each of these systems to distinguish between different theoretical descriptions of the long-range correlations observed in small collision systems.

UR - http://www.scopus.com/inward/record.url?scp=85016515829&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.95.034910

DO - 10.1103/PhysRevC.95.034910

M3 - Article

AN - SCOPUS:85016515829

SN - 2469-9985

VL - 95

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - 034910

ER -

Measurement of long-range angular correlations and azimuthal anisotropies in high-multiplicity p+Au collisions at s NN =200 GeV

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this