Study of J/ψ azimuthal anisotropy at forward rapidity in Pb-Pb collisions at √sNN=5.02 TeV

被引：0

作者：

Acharya, S. ^{[156
]}

Acosta, F. T. ^{[26
]}

Adamova, D. ^{[109
]}

Adler, A. ^{[90
]}

Adolfsson, J. ^{[96
]}

Aggarwal, M. M. ^{[114
]}

Rinella, G. Aglieri ^{[51
]}

Agnello, M. ^{[45
,46
]}

Agrawal, N. ^{[65
]}

Ahammed, Z. ^{[156
]}

Ahn, S. U. ^{[92
]}

Aiola, S. ^{[161
]}

Akindinov, A. ^{[80
]}

Al-Turany, M. ^{[120
,121
]}

Alam, S. N. ^{[156
]}

Albuquerque, D. S. D. ^{[138
]}

Aleksandrov, D. ^{[103
]}

Alessandro, B. ^{[74
]}

Alfanda, H. M. ^{[11
]}

Alfaro Molina, R. ^{[88
]}

Ali, Y. ^{[21
]}

Alici, A. ^{[15
,16
,37
,38
,69
]}

Alkin, A. ^{[6
]}

Alme, J. ^{[28
]}

Alt, T. ^{[85
]}

Altenkamper, L. ^{[28
]}

Altsybeev, I. ^{[128
]}

Anaam, M. N. ^{[11
]}

Andrei, C. ^{[64
]}

Andreou, D. ^{[51
]}

Andrews, H. A. ^{[125
]}

Andronic, A. ^{[120
,121
,159
]}

Angeletti, M. ^{[51
]}

Anguelov, V. ^{[118
]}

Anson, C. ^{[22
]}

Anticic, T. ^{[122
]}

Antinori, F. ^{[72
]}

Antonioli, P. ^{[69
]}

Anwar, R. ^{[142
]}

Apadula, N. ^{[95
]}

Aphecetche, L. ^{[130
]}

Appelshaeuser, H. ^{[85
]}

Arcelli, S. ^{[37
,38
]}

Arnaldi, R. ^{[74
]}

Arsene, I. C. ^{[27
]}

Arslandok, M. ^{[118
]}

Augustinus, A. ^{[51
]}

Averbeck, R. ^{[120
,121
]}

Azmi, M. D. ^{[23
]}

Badala, A. ^{[71
]}

机构：

[1] Politecn Torino, Dipartimento DET, Turin, Italy

[2] Moscow MV Lomonosov State Univ, DV Skobeltsyn Inst Nucl, Phys, Moscow, Russia

[3] Aligarh Muslim Univ, Dept Appl Phys, Aligarh, Uttar Pradesh, India

[4] Univ Wroclaw, Inst Theoret Phys, Wroclaw, Poland

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

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

[7] Bose Inst, Dept Phys, Kolkata, India

[8] CAPSS, Kolkata, India

[9] Budker Inst Nucl Phys, Novosibirsk, Russia

[10] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA

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

[12] IN2P3, Ctr Calcul, Lyon, France

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

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

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

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

[17] Chicago State Univ, Chicago, IL USA

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

[19] Chonbuk Natl Univ, Jeonju, South Korea

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

[21] CIIT Ctr Hlth Res, Islamabad, Pakistan

[22] Creighton Univ, Omaha, NE 68178 USA

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

[24] Pusan Natl Univ, Dept Phys, Pusan, South Korea

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

[26] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

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

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

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

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

[31] Univ Cagliari, Dipartimento Fis, Cagliari, Italy

[32] Sezione Ist Nazl Fis Nucl, Cagliari, Italy

[33] Univ Trieste, Dipartimento Fis, Trieste, Italy

[34] Sezione Ist Nazl Fis Nucl, Trieste, Italy

[35] Univ Turin, Dipartimento Fis, Turin, Italy

[36] Sezione Ist Nazl Fis Nucl, Turin, Italy

[37] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[38] Sezione Ist Nazl Fis Nucl, Bologna, Italy

[39] Univ Catania, Dipartimento Fis & Astron, Catania, Italy

[40] Sezione Ist Nazl Fis Nucl, Catania, Italy

[41] Univ Padua, Dipartimento Fis & Astron, Padua, Italy

[42] Sezione Ist Nazl Fis Nucl, Padua, Italy

[43] Univ Salerno, Dipartimento Fis ER Caianiello, Salerno, Italy

[44] INFN, Grp Collegato, Salerno, Italy

[45] Politecn Torino, Dipartimento DISAT, Turin, Italy

[46] Sezione Ist Nazl Fis Nucl, Turin, Italy

[47] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy

[48] INFN, Sez Torino, Alessandria, Italy

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

[50] Sezione Ist Nazl Fis Nucl, Bari, Italy

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2019年 / 02期

基金：

美国能源部; 巴西圣保罗研究基金会; 中国国家自然科学基金; 日本学术振兴会; 新加坡国家研究基金会; 瑞典研究理事会;

关键词：

Hadron-Hadron scattering (experiments); RELATIVISTIC NUCLEAR COLLISIONS; SUPPRESSION;

D O I：

10.1007/JHEP02(2019)012

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The second (v(2)) and third (v(3)) flow harmonic coefficients of J/ mesons are measured at forward rapidity (2.5 < y < 4.0) in Pb-Pb collisions at sNN=5.02 TeV with the ALICE detector at the LHC. Results are obtained with the scalar product method and reported as a function of transverse momentum, p(T), for various collision centralities. A positive value of J/ v(3) is observed with 3.7 sigma significance. The measurements, compared to those of prompt D-0 mesons and charged particles at mid-rapidity, indicate an ordering with v(n)(J/) < v(n)(D-0) < v(n)(h(+/-)) (n = 2, 3) at low and intermediate p(T) up to 6 GeV/c and a convergence with v(2)(J/) approximate to v(2)(D-0) approximate to v(2)(h(+/-)) at high p(T) above 6-8 GeV/c. In semi-central collisions (5-40% and 10-50% centrality intervals) at intermediate p(T) between 2 and 6 GeV/c, the ratio v(3)/v(2) of J/ mesons is found to be significantly lower (4.6 sigma) with respect to that of charged particles. In addition, the comparison to the prompt D-0-meson ratio in the same p(T) interval suggests an ordering similar to that of the v(2) and v(3) coefficients. The J/ v(2) coefficient is further studied using the Event Shape Engineering technique. The obtained results are found to be compatible with the expected variations of the eccentricity of the initial-state geometry.

引用

页数：30

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