Investigations of Anisotropic Flow Using Multiparticle Azimuthal Correlations in pp, p-Pb, Xe-Xe, and Pb-Pb Collisions at the LHC

被引：90

作者：

Acharya, S. ^{[142
]}

Adamova, D. ^{[93
]}

Adhya, S. P. ^{[142
]}

Adler, A. ^{[74
]}

Adolfsson, J. ^{[80
]}

Aggarwal, M. M. ^{[98
]}

Rinella, G. Aglieri ^{[35
]}

Agnello, M. ^{[26
,31
]}

Agrawal, N. ^{[11
,12
]}

Ahammed, Z. ^{[142
]}

Ahmad, S. ^{[19
]}

Ahn, S. U. ^{[76
]}

Aiola, S. ^{[147
]}

Akindinov, A. ^{[64
]}

Al-Turany, M. ^{[105
,106
]}

Alam, S. N. ^{[142
]}

Albuquerque, D. S. D. ^{[123
]}

Aleksandrov, D. ^{[87
]}

Alessandro, B. ^{[33
]}

Alfanda, H. M. ^{[7
]}

Alfaro Molina, R. ^{[72
]}

Ali, B. ^{[19
]}

Ali, Y. ^{[17
]}

Alici, A. ^{[11
,12
,26
,28
,54
]}

Alkin, A. ^{[2
]}

Alme, J. ^{[24
]}

Alt, T. ^{[69
]}

Altenkamper, L. ^{[24
]}

Altsybeev, I ^{[113
]}

Anaam, M. N. ^{[7
]}

Andrei, C. ^{[48
]}

Andreou, D. ^{[35
]}

Andrews, H. A. ^{[110
]}

Andronic, A. ^{[145
]}

Angeletti, M. ^{[35
]}

Anguelov, V ^{[102
]}

Anson, C. ^{[18
]}

Anticic, T. ^{[107
]}

Antinori, F. ^{[57
]}

Antonioli, P. ^{[54
]}

Anwar, R. ^{[127
]}

Apadula, N. ^{[79
]}

Aphecetche, L. ^{[115
]}

Appelshaeuser, H. ^{[69
]}

Arcelli, S. ^{[26
,28
]}

Arnaldi, R. ^{[33
]}

Arratia, M. ^{[79
]}

Arsene, I. C. ^{[23
]}

Arslandok, M. ^{[102
]}

Augustinus, A. ^{[35
]}

机构：

[1] Yerevan Phys Inst Fdn, Alikhanyan Natl Sci Lab, Yerevan, Armenia

[2] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine

[3] Bose Inst, Dept Phys, Kolkata, W Bengal, India

[4] Ctr Astroparticle Phys & Space Sci, Kolkata, W Bengal, India

[5] Budker Inst Nucl Phys, Novosibirsk, Russia

[6] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA USA

[7] Cent China Normal Univ, Wuhan, Hubei, Peoples R China

[8] IN2P3, Ctr Calcul, Villeurbanne, France

[9] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba

[10] CINVESTAV, Ctr Invest & Estudios Avanzados, Mexico City, DF, Mexico

[11] Museo Stor Fis, Ctr Fermi, Rome, Italy

[12] Ctr Studi & Ric Enrico Fermi, Rome, Italy

[13] Chicago State Univ, Chicago, IL USA

[14] China Inst Atom Energy, Beijing, Peoples R China

[15] Chonbuk Natl Univ, Jeonju, Jeollabuk Do, South Korea

[16] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

[17] COMSATS Univ Islamabad, Islamabad, Pakistan

[18] Creighton Univ, Omaha, NE 68178 USA

[19] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India

[20] Pusan Natl Univ, Dept Phys, Busan, South Korea

[21] Sejong Univ, Dept Phys, Seoul, South Korea

[22] Univ Calif, Dept Phys, Berkeley, CA USA

[23] Univ Oslo, Dept Phys, Oslo, Norway

[24] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[25] Univ Roma La Sapienza, Dipartimento Fis, Rome, Italy

[26] Sezione Ist Nazl Fis Nucl, Rome, Italy

[27] Univ Rome, Dipartimento Fis, Rome, Italy

[28] Univ Rome, Dipartimento Fis & Astron, Rome, Italy

[29] Univ Fisciano, Dipartimento Fis ER Caianiello, Fisciano, Italy

[30] INFN, Grp Collegato, Rome, Italy

[31] Politecn Rome, Dipartimento DISAT, Rome, Italy

[32] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Turin, Italy

[33] INFN, Sez Torino, Turin, Italy

[34] Dipartimento Interateneo Fis M Merlin, Bari, Italy

[35] CERN, European Org Nucl Res, Geneva, Switzerland

[36] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[37] Western Norway Univ Appl Sci, Fac Engn & Sci, Haugesund, Norway

[38] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic

[39] Safarik Univ, Fac Sci, Kosice, Slovakia

[40] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany

[41] Gangneung Wonju Natl Univ, Kangnung, Gangwon Do, South Korea

[42] Gauhati Univ, Dept Phys, Gauhati, Assam, India

[43] Rheinische Friedrich Wilhelms Univ Bonn, Helmholtz Inst Strahlen & Kernphys, Bonn, Germany

[44] Helsinki Inst Phys, Helsinki, Finland

[45] Univ Autonotna Puebla, High Energy Phys Grp, Puebla, Mexico

[46] Hiroshima Univ, Hiroshima, Japan

[47] Hsch Worms, ZTT, Worms, Germany

[48] Horia Hulubei Natl Inst Phys & Nucl Engn, Magurele, Romania

[49] Indian Inst Technol Bombay IIT, Mumbai, Maharashtra, India

[50] Indian Inst Technol Indore, Indore, Madhya Pradesh, India

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 123卷 / 14期

基金：

中国国家自然科学基金; 美国能源部; 日本学术振兴会; 新加坡国家研究基金会; 巴西圣保罗研究基金会; 英国科学技术设施理事会; 俄罗斯科学基金会; 俄罗斯基础研究基金会; 瑞典研究理事会; 奥地利科学基金会; 美国国家科学基金会;

关键词：

COLLECTIVITY; FLUCTUATIONS;

D O I：

10.1103/PhysRevLett.123.142301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Measurements of anisotropic flow coefficients (v(n)) and their cross-correlations using two- and multiparticle cumulant methods are reported in collisions of pp at root S = 13 TeV, p-Pb at a center-of- mass energy per nucleon pair root S-NN = 5.02 TeV, Xe-Xe at = 5.44 TeV, and Pb-Pb at root S-NN = 5.02 TeV recorded with the ALICE detector. The multiplicity dependence of v(n) is studied in a very wide range from 20 to 3000 particles produced in the midrapidity region vertical bar eta vertical bar < 0.8 for the transverse momentum range 0.2 < p(T) < 3.0 GeV/c. An ordering of the coefficients v(2) > v(3) > v(4) is found in pp and p-Pb collisions, similar to that seen in large collision systems, while a weak v(2) multiplicity dependence is observed relative to nucleus-nucleus collisions in the same multiplicity range. Using a novel subevent method, v(2) measured with four-particle cumulants is found to be compatible with that from six-particle cumulants in pp and p-Pb collisions. The magnitude of the correlation between v(n)(2) and v(m)(2) evaluated with the symmetric cumulants SC(m, n) is observed to be positive at all multiplicities for v(2) and v4, while for v(2) and v(3) it is negative and changes sign for multiplicities below 100, which may indicate a different v(n) fluctuation pattern in this multiplicity range. The observed long-range multiparticle azimuthal correlations in high multiplicity pp and p-Pb collisions can neither be described by PYTHIA 8 nor by impact-parameterGlasma, muslc, and ultrarelativistic quantum molecular dynamics model calculations, and hence, provide new insights into the understanding of collective effects in small collision systems.

引用

页数：13

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