Femtoscopy with identified charged pions in proton-lead collisions at √sNN=5.02 TeV with ATLAS

被引:11
作者
Aaboud, M. [186 ,187 ]
Aad, G. [119 ,120 ]
Abbott, B. [151 ]
Abdallah, J. [92 ]
Abdinov, O. [15 ]
Abeloos, B. [155 ]
Aben, R. [144 ,145 ]
AbouZeid, O. S. [190 ]
Abraham, N. L. [210 ]
Abramowicz, H. [214 ]
Abreu, H. [213 ]
Abreu, R. [154 ]
Abulaiti, Y. [205 ,206 ]
Acharya, B. S. [230 ,231 ,247 ]
Adamczyk, L. [56 ]
Adams, D. L. [37 ]
Adelman, J. [146 ]
Adomeit, S. [135 ]
Adye, T. [177 ]
Affolder, A. A. [106 ]
Agatonovic-Jovin, T. [17 ]
Agricola, J. [77 ]
Aguilar-Saavedra, J. A. [166 ,171 ,172 ]
Ahlen, S. P. [31 ]
Ahmadov, F. [15 ,94 ]
Aielli, G. [180 ,181 ]
Akerstedt, H. [205 ,206 ]
Akesson, T. P. A. [115 ]
Akimov, A. V. [131 ]
Alberghi, G. L. [28 ,29 ]
Albert, J. [237 ]
Albrand, S. [78 ]
Verzini, M. J. Alconada [101 ,102 ]
Aleksa, M. [44 ]
Aleksandrov, I. N. [94 ]
Alexa, C. [38 ]
Alexander, G. [214 ]
Alexopoulos, T. [13 ]
Alhroob, M. [151 ]
Ali, B. [174 ]
Aliev, M. [104 ,105 ]
Alimonti, G. [126 ]
Alison, J. [45 ]
Alkire, S. P. [52 ]
Allbrooke, B. M. M. [210 ]
Allen, B. W. [154 ]
Allport, P. P. [22 ]
Aloisio, A. [140 ,141 ,201 ]
Alonso, A. [53 ]
Alonso, F. [101 ,102 ]
机构
[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia
[2] SUNY Albany, Phys Dept, 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, High Energy Phys Div, 9700 S Cass Ave, Argonne, IL 60439 USA
[10] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
[11] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA
[12] Natl & Kapodistrian 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] Humboldt Univ, Dept Phys, Berlin, Germany
[21] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland
[22] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England
[23] Bogazici Univ, Dept Phys, Istanbul, Turkey
[24] Gaziantep Univ, Dept Phys Engn, Gaziantep, Turkey
[25] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey
[26] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey
[27] Univ Antonio Narino, Ctr Invest, Bogota, Colombia
[28] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy
[29] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy
[30] Univ Bonn, Phys Inst, Bonn, Germany
[31] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA
[32] Brandeis Univ, Dept Phys, Waltham, MA USA
[33] Univ Fed Rio De Janeiro, COPPE, EE, IF, Rio De Janeiro, Brazil
[34] Univ Fed Juiz de Fora, Elect Circuits Dept, Juiz de Fora, Brazil
[35] Fed Univ Sao Joao del Rei UFSJ, Sao Joao del Rei, Brazil
[36] Univ Sao Paulo, Inst Fis, Sao Paulo, Brazil
[37] Brookhaven Natl Lab, Phys Dept, Upton, NY 11973 USA
[38] Horia Hulubei Natl Inst Phys & Nucl Engn, Bucharest, Romania
[39] Natl Inst Res & Dev Isotop & Mol Technol, Phy Dept, Cluj Napoca, Romania
[40] West Univ Timisoara, Timisoara, Romania
[41] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina
[42] Univ Cambridge, Cavendish Lab, Cambridge, England
[43] Carleton Univ, Dept Phys, Ottawa, ON, Canada
[44] CERN, Geneva, Switzerland
[45] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA
[46] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile
[47] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile
[48] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China
[49] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China
[50] Tsinghua Univ, Phys Dept, Beijing 100084, Peoples R China
基金
加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会; 美国国家科学基金会;
关键词
PB-PB COLLISIONS; LONG-RANGE; TRANSVERSE-MOMENTUM; COULOMB CORRECTIONS; NEAR-SIDE; INTERFEROMETRY; PARTON; FLOW; PP;
D O I
10.1103/PhysRevC.96.064908
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
Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at root s(NN) = 5.02 TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28 nb(-1). Pions are identified using ionization energy loss measured in the pixel detector. Two-particle correlation functions and the extracted source radii are presented as a function of collision centrality as well as the average transverse momentum (k(T)) and rapidity (y*(pi pi)) of the pair. Pairs are selected with a rapidity -2 < y*(pi pi) < 1 and with an average transverse momentum 0.1 < k(T) < 0.8 GeV. The effect of jet fragmentation on the two-particle correlation function is studied, and a method using opposite-charge pair data to constrain its contributions to the measured correlations is described. The measured source sizes are substantially larger in more central collisions and are observed to decrease with increasing pair k(T). A correlation of the radii with the local charged-particle density is demonstrated. The scaling of the extracted radii with the mean number of participating nucleons is also used to compare a selection of initial-geometry models. The cross term R-ol is measured as a function of rapidity, and a nonzero value is observed with 5.1 sigma combined significance for -1 < y*pi pi < 1 in the most central events.
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页数:38
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