Measurement of forward-backward multiplicity correlations in lead-lead, proton-lead, and proton-proton collisions with the ATLAS detector

被引:23
作者
Aaboud, M. [190 ,191 ]
Aad, G. [122 ,123 ]
Abbott, B. [154 ]
Abdallah, J. [95 ]
Abdinov, O. [15 ]
Abeloos, B. [136 ,158 ]
Aben, R. [147 ,148 ]
AbouZeid, O. S. [194 ]
Abraham, N. L. [212 ]
Abramowicz, H. [216 ]
Abreu, H. [215 ]
Abreu, R. [157 ]
Abulaiti, Y. [206 ,207 ]
Acharya, B. S. [229 ,230 ,250 ]
Adamczyk, L. [63 ]
Adams, D. L. [39 ]
Adelman, J. [149 ]
Adomeit, S. [138 ]
Adye, T. [180 ]
Affolder, A. A. [108 ]
Agatonovic-Jovin, T. [17 ]
Agricola, J. [83 ]
Aguilar-Saavedra, J. A. [169 ,174 ,175 ]
Ahlen, S. P. [33 ]
Ahmadov, F. [97 ,251 ]
Aielli, G. [183 ,184 ]
Akerstedt, H. [206 ,207 ]
Akesson, T. P. A. [118 ]
Akimov, A. V. [134 ]
Alberghi, G. L. [30 ,31 ]
Albert, J. [240 ]
Albrand, S. [84 ]
Alconada Verzini, M. J. [103 ,104 ]
Aleksa, M. [46 ]
Aleksandrov, I. N. [97 ]
Alexa, C. [40 ]
Alexander, G. [216 ]
Alexopoulos, T. [13 ]
Alhroob, M. [154 ]
Ali, B. [177 ]
Aliev, M. [106 ,107 ]
Alimonti, G. [129 ]
Alison, J. [47 ]
Alkire, S. P. [59 ]
Allbrooke, B. M. M. [212 ]
Allen, B. W. [157 ]
Allport, P. P. [24 ]
Aloisio, A. [39 ,76 ,106 ,143 ,144 ]
Alonso, A. [60 ,103 ]
Alonso, F. [104 ]
机构
[1] Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia
[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA
[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada
[4] Ankara Univ, Dept Phys, Ankara, Turkey
[5] Istanbul Aydin Univ, Istanbul, Turkey
[6] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey
[7] CNRS, IN2P3, LAPP, Annecy Le Vieux, France
[8] Univ Savoie Mont Blanc, Annecy Le Vieux, France
[9] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA
[10] Univ Arizona, Dept Phys, Tucson, AZ USA
[11] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
[12] Univ Athens, Phys Dept, Athens, Greece
[13] Natl Tech Univ Athens, Phys Dept, Zografos, Greece
[14] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA
[15] Azerbaijan Acad Sci, Inst Phys, Baku, Azerbaijan
[16] Barcelona Inst Sci & Technol, IFAE, Barcelona, Spain
[17] Univ Belgrade, Inst Phys, Belgrade, Serbia
[18] Univ Bergen, Dept Phys & Technol, Bergen, Norway
[19] Lawrence Berkeley Natl Lab, Phys Div, Berkeley, CA USA
[20] Univ Calif Berkeley, Berkeley, CA 94720 USA
[21] Humboldt Univ, Dept Phys, Berlin, Germany
[22] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[23] Univ Bern, Lab High Energy Phys, Bern, Switzerland
[24] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[25] Bogazici Univ, Dept Phys, Istanbul, Turkey
[26] Gaziantep Univ, Dept Phys Engn, Gaziantep, Turkey
[27] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey
[28] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey
[29] Univ Antonio Narino, Ctr Invest, Bogota, Colombia
[30] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy
[31] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[32] Univ Bonn, Phys Inst, Bonn, Germany
[33] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[34] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA
[35] Univ Fed Rio Janeiro COPPE EE IF, Rio De Janeiro, Brazil
[36] Univ Fed Juiz de Fora, Elect Circuits Dept, Juiz De Fora, Brazil
[37] Federal Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil
[38] Univ Sao Paulo, Inst Fis, Sao Paulo, Brazil
[39] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA
[40] Nat Inst Phys & Nucl Engn, Bucharest, Romania
[41] Nat Inst Res & Dev Isotop & Mol Technol, Phys Dept, Cluj Napoca, Romania
[42] West Univ Timisoara, Timisoara, Romania
[43] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina
[44] Univ Cambridge, Cavendish Lab, Cambridge, England
[45] Carleton Univ, Dept Phys, Ottawa, ON, Canada
[46] CERN, Geneva, Switzerland
[47] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA
[48] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile
[49] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
[50] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
基金
美国国家科学基金会; 巴西圣保罗研究基金会; 加拿大自然科学与工程研究理事会;
关键词
CHARGED-PARTICLE DISTRIBUTIONS; ANGULAR-CORRELATIONS; TRANSVERSE-MOMENTUM; UNDERLYING EVENT; PP COLLISIONS; PB COLLISIONS; LONG-RANGE; TEV; DEPENDENCE; SIDE;
D O I
10.1103/PhysRevC.95.064914
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
Two-particle pseudorapidity correlations are measured in root s(NN) = 2.76 TeV Pb + Pb, root s(NN) = 5.02 TeV p+Pb, and root s = 13 TeV pp collisions at the Large Hadron Collider (LHC), with total integrated luminosities of approximately 7 mu b(-1), 28 nb(-1), and 65 nb(-1), respectively. The correlation function CN(eta(1),eta(2))is measured as a function of event multiplicity using charged particles in the pseudorapidity range |eta| < 2.4. The correlation function contains a significant short-range component, which is estimated and subtracted. After removal of the short-range component, the shape of the correlation function is described approximately by 1 + < a(1)(2)>(1/2) eta(1) eta(2) in all collision systems over the full multiplicity range. The values of < a(1)(2)>(1/2) are consistent for the opposite-charge pairs and same-charge pairs, and for the three collision systems at similar multiplicity. The values of < a(1)(2)>(1/2) and the magnitude of the short-range component both follow a power-law dependence on the event multiplicity. The short-range component in p + Pb collisions, after symmetrizing the proton and lead directions, is found to be smaller at a given eta than in pp collisions with comparable multiplicity.
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页数:30
相关论文
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