Measurements of long-range two-particle correlation over a wide pseudorapidity range in p-Pb collisions at √sNN=5.02 TeV

被引：0

作者：

Acharya, S. ^{[138
]}

Adamova, D. ^{[96
]}

Rinella, G. Aglieri ^{[43
]}

Agnello, M. ^{[30
,39
]}

Agrawal, N. ^{[61
]}

Ahammed, Z. ^{[146
]}

Ahmad, S. ^{[18
]}

Ahn, S. U. ^{[81
]}

Ahuja, I ^{[48
]}

Akindinov, A. ^{[154
]}

Al-Turany, M. ^{[108
,109
]}

Aleksandrov, D. ^{[154
]}

Alessandro, B. ^{[66
]}

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

Alfaro Molina, R. ^{[77
]}

Ali, B. ^{[18
]}

Alici, A. ^{[31
,32
]}

Alizadehvandchali, N. ^{[127
]}

Alkin, A. ^{[43
]}

Alme, J. ^{[23
]}

Alocco, G. ^{[62
]}

Djuvsland, O. ^{[23
]}

Alt, T. ^{[74
]}

Altamura, A. R. ^{[42
,60
]}

Altsybeev, I ^{[106
]}

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

Andrei, C. ^{[56
]}

Andreou, N. ^{[126
]}

Andronic, A. ^{[149
]}

Anguelov, V ^{[105
]}

Antinori, F. ^{[64
]}

Antonioli, P. ^{[61
]}

Apadula, N. ^{[84
]}

Aphecetche, L. ^{[115
]}

Appelshaeuser, H. ^{[74
]}

Arata, C. ^{[83
]}

Arcelli, S. ^{[31
,32
]}

Aresti, M. ^{[25
,26
]}

Arnaldi, R. ^{[66
]}

Arneiro, J. G. M. C. A. ^{[122
]}

Arsene, I. C. ^{[22
]}

Arslandok, M. ^{[151
]}

Augustinus, A. ^{[43
]}

Averbeck, R. ^{[108
,109
]}

Azmi, M. D. ^{[18
]}

Baba, H. ^{[135
]}

Badala, A. ^{[63
]}

Bae, J. ^{[116
]}

Baek, Y. W. ^{[51
]}

Bai, X. ^{[131
]}

机构：

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

[2] AGH Univ Krakow, Krakow, Poland

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

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

[5] Bose Inst, Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India

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

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

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

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

[10] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Mexico

[11] Chicago State Univ, Chicago, IL USA

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

[13] China Univ Geosci, Wuhan, Peoples R China

[14] Chungbuk Natl Univ, Cheongju, South Korea

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

[16] COMSATS Univ Islamabad, Islamabad, Pakistan

[17] Creighton Univ, Omaha, NE 68178 USA

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

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

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

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

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

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

[24] Univ Pavia, Dipartimento Fis, Pavia, Italy

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

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

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

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

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

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

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

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

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

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

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

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

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

[38] Ist Nazl Fis Nucl, Grp Coll, Salerno, Italy

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

[40] Univ Messina, Dipartimento Sci MIFT, Messina, Italy

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

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

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

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

[45] Western Norway Univ Appl Sci, Fac Engn & Sci, Bergen, Norway

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

[47] Sofia Univ, Fac Phys, Sofia, Bulgaria

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

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

[50] Fudan Univ, Shanghai, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 01期

基金：

新加坡国家研究基金会; 日本学术振兴会; 欧盟地平线“2020”; 芬兰科学院; 中国国家自然科学基金; 奥地利科学基金会; 瑞典研究理事会; 英国科学技术设施理事会; 美国国家科学基金会; 欧洲研究理事会; 美国能源部; 巴西圣保罗研究基金会;

关键词：

Collective Flow; Heavy Ion Experiments; Particle Correlations and Fluctuations; ANGULAR-CORRELATIONS; SIDE;

D O I：

10.1007/JHEP01(2024)199

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：

Correlations in azimuthal angle extending over a long range in pseudorapidity between particles, usually called the "ridge" phenomenon, were discovered in heavy-ion collisions, and later found in pp and p-Pb collisions. In large systems, they are thought to arise from the expansion (collective flow) of the produced particles. Extending these measurements over a wider range in pseudorapidity and final-state particle multiplicity is important to understand better the origin of these long-range correlations in small collision systems. In this Letter, measurements of the long-range correlations in p-Pb collisions at root s(NN) = 5.02 TeV are extended to a pseudorapidity gap of Delta eta similar to 8 between particles using the ALICE forward multiplicity detectors. After suppressing non-flow correlations, e.g., from jet and resonance decays, the ridge structure is observed to persist up to a very large gap of Delta eta similar to 8 for the first time in p-Pb collisions. This shows that the collective flow-like correlations extend over an extensive pseudorapidity range also in small collision systems such as p-Pb collisions. The pseudorapidity dependence of the second-order anisotropic flow coefficient, v(2)(eta), is extracted from the long-range correlations. The v(2)(eta) results are presented for a wide pseudorapidity range of -3.1 < eta < 4.8 in various centrality classes in p-Pb collisions. To gain a comprehensive understanding of the source of anisotropic flow in small collision systems, the v(2)(eta) measurements are compared with hydrodynamic and transport model calculations. The comparison suggests that the final-state interactions play a dominant role in developing the anisotropic flow in small collision systems.

引用

页数：30

共 50 条

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