作者
Vardan Khachatryan, Albert M Sirunyan, Armen Tumasyan, Wolfgang Adam, E Asilar, Thomas Bergauer, Johannes Brandstetter, Marko Dragicevic, Janos Erö, Martin Flechl, Markus Friedl, Rudolf Fruehwirth, Vasile Mihai Ghete, Christian Hartl, Natascha Hörmann, Josef Hrubec, Manfred Jeitler, Wolfgang Kiesenhofer, Valentin Knünz, Axel König, Manfred Krammer, Ilse Krätschmer, Dietrich Liko, Ivan Mikulec, Dinyar Rabady, Babak Rahbaran, Herbert Rohringer, Jochen Schieck, Robert Schöfbeck, Josef Strauss, Wolfgang Treberer-Treberspurg, Wolfgang Waltenberger, C-E Wulz, N Shumeiko, J Suarez Gonzalez, S Alderweireldt, S Bansal, Tom Cornelis, EA De Wolf, X Janssen, A Knutsson, J Lauwers, S Luyckx, S Ochesanu, R Rougny, M Van De Klundert, H Van Haevermaet, P Van Mechelen, A Van Spilbeeck, S Abu Zeid, F Blekman, J D'Hondt, N Daci, I De Bruyn, K Deroover, N Heracleous, J Keaveney, S Lowette, L Moreels, A Olbrechts, Q Python, D Strom, S Tavernier, W Van Doninck, P Van Mulders, GP Van Onsem, I Van Parijs, C Caillol, B Clerbaux, G De Lentdecker, H Delannoy, Didar Dobur, G Fasanella, L Favart, APR Gay, A Grebenyuk, A Leonard, A Mohammadi, L Pernie, A Randle-Conde, T Reis, T Seva, L Thomas, C Vander Velde, Pascal Vanlaer, Jian Wang, Florian Zenoni, Kelly Beernaert, Leonardo Benucci, Anna Cimmino, Shannon Crucy, Alexis Fagot, Guillaume Garcia, Muhammad Gul, Joseph McCartin, AA Ocampo Rios, Deniz Poyraz, Dirk Ryckbosch, S Salva Diblen, Michael Sigamani, Nadja Strobbe, Filip Thyssen, Michael Tytgat, Ward Van Driessche, Efe Yazgan, Nikolaos Zaganidis, Suzan Basegmez, Camille Beluffi, Giacomo Bruno, Roberto Castello, Adrien Caudron, Ludivine Ceard, Gustavo Gil Da Silveira, Christophe Delaere, Tristan Du Pree, Denis Favart, Laurent Forthomme, Andrea Giammanco, Jonathan Hollar, Abideh Jafari, Pavel Jez, Matthias Komm, Vincent Lemaitre, Alexandre Mertens, Claude Nuttens, Lucia Perrini, Arnaud Pin, Krzysztof Piotrzkowski, Andrey Popov, Loic Quertenmont, Michele Selvaggi, M Vidal Marono, Nikita Beliy, Thierry Caebergs, Gregory Habib Hammad, WL Aldá Júnior, GA Alves, Lucas Brito, M Correa Martins Junior, T Dos Reis Martins, Carsten Hensel, C Mora Herrera, Arthur Moraes, Maria Elena Pol, P Rebello Teles, E Belchior Batista Das Chagas, Wagner Carvalho, Jose Chinellato, Analu Custódio, EM Da Costa
发表日期
2015/9/22
期刊
Physical Review C
卷号
92
期号
3
页码范围
034911
出版商
American Physical Society
简介
A systematic study of the factorization of long-range azimuthal two-particle correlations into a product of single-particle anisotropies is presented as a function of p T and η of both particles and as a function of the particle multiplicity in PbPb and p Pb collisions. The data were taken with the CMS detector for PbPb collisions at s NN= 2.76 TeV and p Pb collisions at s NN= 5.02 TeV, covering a very wide range of multiplicity. Factorization is observed to be broken as a function of both particle p T and η. When measured with particles of different p T, the magnitude of the factorization breakdown for the second Fourier harmonic reaches 20% for very central PbPb collisions but decreases rapidly as the multiplicity decreases. The data are consistent with viscous hydrodynamic predictions, which suggest that the effect of factorization breaking is mainly sensitive to the initial-state conditions rather than to the transport properties …
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