Neutral to charged kaon yield fluctuations in Pb - Pb collisions at , √SNN=2.76 TeV

被引:7
作者
Acharya, S. [154 ]
Adamova, D. [107 ]
Adler, A. [85 ]
Adolfsson, J. [92 ]
Rinella, G. Aglieri [45 ]
Agnello, M. [29 ,39 ]
Agrawal, N. [65 ]
Ahammed, Z. [154 ]
Ahmad, S. [18 ]
Ahn, S. U. [87 ]
Ahuja, I [49 ]
Akbar, Z. [62 ]
Akindinov, A. [104 ]
Al-Turany, M. [119 ,120 ]
Alam, S. N. [18 ]
Aleksandrov, D. [100 ]
Alessandro, B. [70 ]
Alfanda, H. M. [8 ]
Alfaro Molina, R. [82 ]
Ali, B. [18 ]
Ali, Y. [16 ]
Alici, A. [30 ,31 ]
Alizadehvandchali, N. [137 ]
Alkin, A. [45 ]
Alme, J. [23 ]
Alocco, G. [66 ]
Alt, T. [79 ]
Altsybeev, I [125 ]
Anaam, M. N. [8 ]
Andrei, C. [59 ]
Andreou, D. [102 ]
Andronic, A. [157 ]
Anguelov, V [116 ]
Antinori, F. [68 ]
Antonioli, P. [65 ]
Anuj, C. [18 ]
Apadula, N. [91 ]
Aphecetche, L. [127 ]
Appelshaeuser, H. [79 ]
Arcelli, S. [30 ,31 ]
Arnaldi, R. [70 ]
Arsene, I. C. [22 ]
Arslandok, M. [159 ]
Augustinus, A. [45 ]
Averbeck, R. [119 ,120 ]
Aziz, S. [89 ]
Azmi, M. D. [18 ]
Badala, A. [67 ]
Baek, Y. W. [52 ]
Bai, X. [119 ,120 ,141 ]
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] Bose Inst, Ctr Astroparticle Phys & Space Sci CAPSS, Kolkata, India
[6] Budker Inst Nucl Phys, Novosibirsk, Russia
[7] Calif Polytech State Univ San Luis Obispo, San Luis Obispo, CA 93407 USA
[8] Cent China Normal Univ, Wuhan, Peoples R China
[9] Ctr Aplicac Tecnol & Desarrollo Nucl CEADEN, Havana, Cuba
[10] Ctr Invest & Estudios Avanzados CINVESTAV, Mexico City, DF, Mexico
[11] Ctr Invest & Estudios Avanzados CINVESTAV, Merida, Yucatan, Mexico
[12] Chicago State Univ, Chicago, IL USA
[13] China Inst Atom Energy, Beijing, 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 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 Pavia, Dipartimento Fis & Nucl & Teor, Pavia, Italy
[37] Univ Salerno, Dipartimento Fis ER Caianiello, Salerno, Italy
[38] Grp Collegato INFN, Salerno, Italy
[39] Politecn Torino, Dipartimento DISAT, Turin, Italy
[40] Univ Piemonte Orientale, Dipartimento Sci & Innovaz Tecnol, Alessandria, Italy
[41] Ist Nazl Fis Nucl, Sez Torino, Alessandria, Italy
[42] Univ Messina, Dipartimento Sci MIFT, Messina, Italy
[43] Dipartimento Interateneo Fis M Merlin, Bari, Italy
[44] Sezione Ist Nazl Fis Nucl, Bari, Italy
[45] European Org Nucl Res CERN, Geneva, Switzerland
[46] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia
[47] Western Norway Univ Appl Sci, Fac Engn & Sci, Bergen, Norway
[48] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Prague, Czech Republic
[49] Safarik Univ, Fac Sci, Kosice, Slovakia
[50] Goethe Univ Frankfurt, Frankfurt Inst Adv Studies, Frankfurt, Germany
基金
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; 新加坡国家研究基金会; 俄罗斯科学基金会; 巴西圣保罗研究基金会; 俄罗斯基础研究基金会; 日本学术振兴会; 英国科学技术设施理事会; 美国国家科学基金会; 美国能源部;
关键词
HEAVY-ION COLLISIONS; QCD; LHC;
D O I
10.1016/j.physletb.2022.137242
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present the first measurement of event-by-event fluctuations in the kaon sector in Pb - Pb collisions at root S-NN = 2.76 TeV with the ALICE detector at the LHC. The robust fluctuation correlator nu(dyn) is used to evaluate the magnitude of fluctuations of the relative yields of neutral and charged kaons, as well as the relative yields of charged kaons, as a function of collision centrality and selected kinematic ranges. While the correlator nu(dyn) [K+,K-] exhibits a scaling approximately in inverse proportion of the charged particle multiplicity, nu(dyn)[K-S(0),K-+/-] features a significant deviation from such scaling. Within uncertainties, the value of nu(dyn) [K-S(0), K-+/-] is independent of the selected transverse momentum interval, while it exhibits a pseudorapidity dependence. The results are compared with HIJING, AMPT and EPOS-LHC predictions, and are further discussed in the context of the possible production of disoriented chiral condensates in central Pb - Pb collisions. (C) 2022 European Organization for Nuclear Research, ALICE. Published by Elsevier B.V.
引用
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页数:12
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