作者
Serguei Chatrchyan, Vardan Khachatryan, Albert M Sirunyan, Armen Tumasyan, Wolfgang Adam, Ernest Aguilo, Thomas Bergauer, Marko Dragicevic, Janos Erö, Christian Fabjan, M Friedl, R Frühwirth, VM Ghete, N Hörmann, J Hrubec, M Jeitler, W Kiesenhofer, V Knünz, M Krammer, I Krätschmer, D Liko, I Mikulec, M Pernicka, D Rabady, B Rahbaran, C Rohringer, H Rohringer, R Schöfbeck, J Strauss, A Taurok, W Waltenberger, C-E Wulz, N Shumeiko, J Suarez Gonzalez, M Bansal, S Bansal, Tom Cornelis, EA De Wolf, X Janssen, S Luyckx, L Mucibello, S Ochesanu, B Roland, R Rougny, M Selvaggi, H Van Haevermaet, P Van Mechelen, A Van Spilbeeck, F Blekman, S Blyweert, J DʼHondt, R Gonzalez Suarez, A Kalogeropoulos, M Maes, A Olbrechts, W Van Doninck, P Van Mulders, GP Van Onsem, I Villella, B Clerbaux, G De Lentdecker, V Dero, APR Gay, T Hreus, A Léonard, PE Marage, A Mohammadi, T Reis, L Thomas, C Vander Velde, P Vanlaer, J Wang, Volker Adler, Kelly Beernaert, Anna Cimmino, Silvia Costantini, Guillaume Garcia, M Grunewald, Benjamin Klein, Jeremie Lellouch, Andrey Marinov, Joseph McCartin, AA Ocampo Rios, Dirk Ryckbosch, Michael Sigamani, Nadja Strobbe, Filip Thyssen, Michael Tytgat, S Walsh, Efe Yazgan, Nikolaos Zaganidis, S Basegmez, G Bruno, R Castello, L Ceard, C Delaere, T du Pree, D Favart, L Forthomme, A Giammanco, J Hollar, V Lemaitre, J Liao, O Militaru, C Nuttens, D Pagano, A Pin, K Piotrzkowski, JM Vizan Garcia, N Beliy, T Caebergs, E Daubie, GH Hammad, GA Alves, M Correa Martins Junior, T Martins, ME Pol, MHG Souza, WL Aldá Júnior, W Carvalho, A Custódio, EM Da Costa, D De Jesus Damiao, C De Oliveira Martins, S Fonseca De Souza, H Malbouisson, M Malek, D Matos Figueiredo, L Mundim, H Nogima, WL Prado Da Silva, A Santoro, L Soares Jorge, A Sznajder, A Vilela Pereira, TS Anjos, CA Bernardes, FA Dias, TR Fernandez Perez Tomei, EM Gregores, C Lagana, F Marinho, PG Mercadante, SF Novaes, Sandra S Padula, V Genchev, P Iaydjiev, S Piperov, M Rodozov, S Stoykova
发表日期
2013/1/8
期刊
Physics Letters B
卷号
718
期号
3
页码范围
795-814
出版商
North-Holland
简介
Results on two-particle angular correlations for charged particles emitted in pPb collisions at a nucleon–nucleon center-of-mass energy of 5.02 TeV are presented. The analysis uses two million collisions collected with the CMS detector at the LHC. The correlations are studied over a broad range of pseudorapidity, η, and full azimuth, ϕ, as a function of charged particle multiplicity and particle transverse momentum, pT. In high-multiplicity events, a long-range (2<|Δη|<4), near-side (Δϕ≈0) structure emerges in the two-particle Δη–Δϕ correlation functions. This is the first observation of such correlations in proton–nucleus collisions, resembling the ridge-like correlations seen in high-multiplicity pp collisions at s=7 TeV and in AA collisions over a broad range of center-of-mass energies. The correlation strength exhibits a pronounced maximum in the range of pT=1–1.5 GeV/c and an approximately linear increase with …
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