Systematic study of flow vector fluctuations in √SNN=5.02 TeV Pb-Pb collisions

被引:0
作者
Acharya, S. [138 ]
Adamova, D. [95 ]
Agarwal, A. [146 ]
Rinella, G. Aglieri [42 ]
Aglietta, L. [28 ,29 ]
Agnello, M. [29 ,38 ]
Agrawal, N. [30 ,31 ]
Ahammed, Z. [146 ]
Ahmad, S. [17 ]
Ahn, S. U. [80 ]
Ahuja, I. [47 ]
Akindinov, A. [152 ]
Akishina, V. [48 ]
Al-Turany, M. [107 ,108 ]
Aleksandrov, D. [152 ]
Alessandro, B. [65 ]
Alfanda, H. M. [7 ]
Alfaro Molina, R. [76 ]
Ali, B. [17 ]
Alici, A. [30 ,31 ]
Alizadehvandchali, N. [127 ]
Alkin, A. [115 ]
Alme, J. [22 ]
Alocco, G. [61 ]
Alt, T. [73 ]
Altamura, A. R. [59 ]
Altsybeev, I. [105 ]
Alvarado, J. R. [54 ]
Anaam, M. N. [7 ]
Andrei, C. [55 ]
Andreou, N. [126 ]
Andronic, A. [137 ]
Andronov, E. [152 ]
Anguelov, V. [104 ]
Antinori, F. [63 ]
Antonioli, P. [60 ]
Apadula, N. [83 ]
Aphecetche, L. [114 ]
Appelshauser, H. [73 ]
Arata, C. [82 ]
Arcelli, S. [30 ,31 ]
Aresti, M. [24 ,25 ]
Arnaldi, R. [65 ]
Arneiro, J. G. M. C. A. [121 ]
Arsene, I. C. [21 ]
Arslandok, M. [149 ]
Augustinus, A. [42 ]
Averbeck, R. [107 ,108 ]
Azmi, M. D. [17 ]
Baba, H. [135 ]
机构
[1] Yerevan Phys Inst Fdn, AI Alikhanyan Natl Sci Lab, Yerevan, Armenia
[2] AGH Univ Sci & Technol, Krakow, Poland
[3] Natl Acad Sci Ukraine, Bogolyubov Inst Theoret Phys, Kiev, Ukraine
[4] Bose Inst, Dept Phys, Kolkata, India
[5] 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, Yucatan, 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] Creighton Univ, Omaha, NE USA
[17] Aligarh Muslim Univ, Dept Phys, Aligarh, Uttar Pradesh, India
[18] Pusan Natl Univ, Dept Phys, Pusan, South Korea
[19] Sejong Univ, Dept Phys, Seoul, South Korea
[20] Univ Calif Berkeley, Dept Phys, Berkeley, CA USA
[21] Univ Oslo, Dept Phys, Oslo, Norway
[22] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[23] Univ Pavia, Dipartimento Fis, Pavia, Italy
[24] Univ Cagliari, Dipartimento Fis, Cagliari, Italy
[25] Sezione Ist Nazl Fis Nucl, Cagliari, Italy
[26] Univ Trieste, Dipartimento Fis, Trieste, Italy
[27] Sezione Ist Nazl Fis Nucl, Trieste, Italy
[28] Univ Turin, Dipartimento Fis, Turin, Italy
[29] Sezione Ist Nazl Fis Nucl, Turin, Italy
[30] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[31] Sezione Ist Nazl Fis Nucl, Bologna, Italy
[32] Univ Catania, Dipartimento Fis & Astron, Catania, Italy
[33] Sezione Ist Nazl Fis Nucl, Catania, Italy
[34] Univ Padua, Dipartimento Fis & Astron, Padua, Italy
[35] Sezione Ist Nazl Fis Nucl, Padua, Italy
[36] Univ Salerno, Dipartimento Fis ER Caianiello, Salerno, Italy
[37] Univ Salerno, Grp Collegato INFN, Salerno, Italy
[38] Politecn Torino, Dipartimento DISAT, Turin, Italy
[39] Univ Messina, Dipartimento Sci MIFT, Messina, Italy
[40] Dipartimento Interateneo Fis M Merlin, Bari, Italy
[41] Sezione Ist Nazl Fis Nucl, Bari, Italy
[42] European Org Nucl Res CERN, Geneva, Switzerland
[43] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia
[44] Western Norway Univ Appl Sci, Fac Sci & Engn, Bergen, Norway
[45] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic
[46] Sofia Univ, Fac Phys, Sofia, Bulgaria
[47] Safarik Univ, Fac Sci, Kosice, Slovakia
[48] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany
[49] Fudan Univ, Shanghai, Peoples R China
[50] Gangneung Wonju Natl Univ, Kangnung, South Korea
基金
新加坡国家研究基金会; 奥地利科学基金会; 欧洲研究理事会; 美国国家科学基金会; 英国科学技术设施理事会; 日本学术振兴会; 中国国家自然科学基金; 芬兰科学院; 美国能源部; 巴西圣保罗研究基金会; 瑞典研究理事会;
关键词
QUARK-GLUON PLASMA; ANGULAR-CORRELATIONS; ELLIPTIC FLOW; VISCOSITY; PERSPECTIVE; SHEAR; MODEL;
D O I
10.1103/PhysRevC.109.065202
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
Measurements of the p(T)-dependent flow vector fluctuations in Pb-Pb collisions at root S-NN = 5.02 TeV using azimuthal correlations with the ALICE experiment at the Large Hadron Collider are presented. A four-particle correlation approach [ALICE Collaboration, Phys. Rev. C 107, L051901 (2023)] is used to quantify the effects of flow angle and magnitude fluctuations separately. This paper extends previous studies to additional centrality intervals and provides measurements of the p(T)-dependent flow vector fluctuations at root S-NN = 5.02 TeV with two-particle correlations. Significant p(T)-dependent fluctuations of the (V) over right arrow (2) flow vector in Pb-Pb collisions are found across different centrality ranges, with the largest fluctuations of up to similar to 15% being present in the 5% most central collisions. In parallel, no evidence of significant p(T)-dependent fluctuations of (V) over right arrow (3) or (V) over right arrow (4) is found. Additionally, evidence of flow angle and magnitude fluctuations is observed with more than 5 sigma significance in central collisions. These observations in Pb-Pb collisions indicate where the classical picture of hydrodynamic modeling with a common symmetry plane breaks down. This has implications for hard probes at high p(T), which might be biased by p(T)-dependent flow angle fluctuations of at least 23% in central collisions. Given the presented results, existing theoretical models should be reexamined to improve our understanding of initial conditions, quark-gluon plasma properties, and the dynamic evolution of the created system.
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页数:19
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