Flow Dominance and Factorization of Transverse Momentum Correlations in Pb-Pb Collisions at the LHC.
J Adam,D Adamová,M M Aggarwal,G Aglieri Rinella,M Agnello,N Agrawal, Z Ahammed,S Ahmad,S U Ahn,S Aiola,A Akindinov, S N Alam, D S D Albuquerque,D Aleksandrov, B Alessandro,D Alexandre,R Alfaro Molina,A Alici,A Alkin, J Alme, T Alt, S Altinpinar, I Altsybeev, C Alves Garcia Prado,M An, C Andrei,H A Andrews, A Andronic, V Anguelov, C Anson, T Antičić, F Antinori, P Antonioli, R Anwar, L Aphecetche, H Appelshäuser, S Arcelli,R Arnaldi,O W Arnold, I C Arsene, M Arslandok, B Audurier, A Augustinus, R Averbeck, M D Azmi, A Badalà,Y W Baek, S Bagnasco, R Bailhache,R Bala, A Baldisseri,R C Baral, A M Barbano,R Barbera, F Barile,L Barioglio,G G Barnaföldi, L S Barnby, V Barret, P Bartalini, K Barth, J Bartke,E Bartsch, M Basile, N Bastid,S Basu,B Bathen,G Batigne, A Batista Camejo, B Batyunya, P C Batzing, I G Bearden,H Beck,C Bedda, N K Behera, I Belikov, F Bellini, H Bello Martinez,R Bellwied,L G E Beltran,V Belyaev,G Bencedi, S Beole, A Bercuci,Y Berdnikov,D Berenyi, R A Bertens, D Berzano, L Betev, A Bhasin,I R Bhat, A K Bhati, B Bhattacharjee, J Bhom, L Bianchi, N Bianchi, C Bianchin, J Bielčík, J Bielčíková, A Bilandzic,G Biro,R Biswas,S Biswas,J T Blair,D Blau, C Blume, F Bock, A Bogdanov, L Boldizsár, M Bombara,M Bonora, J Book, H Borel, A Borissov, M Borri, E Botta,C Bourjau, P Braun-Munzinger, M Bregant,T A Broker,T A Browning, M Broz, E J Brucken, E Bruna, G E Bruno, D Budnikov, H Buesching, S Bufalino,P Buhler,S A I Buitron, P Buncic, O Busch,Z Buthelezi, J B Butt,J T Buxton,J Cabala, D Caffarri, H Caines, A Caliva, E Calvo Villar, P Camerini,A A Capon,F Carena,W Carena,F Carnesecchi, J Castillo Castellanos,A J Castro,E A R Casula, C Ceballos Sanchez, P Cerello, J Cerkala, B Chang, S Chapeland,M Chartier, J L Charvet,S Chattopadhyay, S Chattopadhyay,A Chauvin,M Cherney, C Cheshkov, B Cheynis,V Chibante Barroso, D D Chinellato,S Cho, P Chochula,K Choi, M Chojnacki, S Choudhury, P Christakoglou, C H Christensen, P Christiansen, T Chujo, S U Chung, C Cicalo, L Cifarelli, F Cindolo,J Cleymans,F Colamaria,D Colella, A Collu,M Colocci,G Conesa Balbastre,Z Conesa Del Valle,M E Connors, J G Contreras, T M Cormier,Y Corrales Morales, I Cortés Maldonado, P Cortese,M R Cosentino,F Costa,J Crkovská, P Crochet,R Cruz Albino, E Cuautle,L Cunqueiro, T Dahms, A Dainese, M C Danisch, A Danu, D Das, I Das,S Das,A Dash, S Dash,S De, A De Caro, G de Cataldo, C de Conti,J de Cuveland, A De Falco, D De Gruttola, N De Marco,S De Pasquale, R D De Souza,H F Degenhardt, A Deisting, A Deloff, C Deplano, P Dhankher,D Di Bari, A Di Mauro,P Di Nezza,B Di Ruzza, M A Diaz Corchero, T Dietel,P Dillenseger, R Divià, Ø Djuvsland, A Dobrin,D Domenicis Gimenez, B Dönigus,O Dordic,T Drozhzhova,A K Dubey, A Dubla, L Ducroux, A K Duggal, P Dupieux, R J Ehlers, D Elia,E Endress, H Engel, E Epple,B Erazmus,F Erhardt, B Espagnon, S Esumi,G Eulisse, J Eum,D Evans,S Evdokimov, L Fabbietti, D Fabris, J Faivre, A Fantoni, M Fasel,L Feldkamp, A Feliciello, G Feofilov, J Ferencei,A Fernández Téllez, E G Ferreiro,A Ferretti, A Festanti,V J G Feuillard, J Figiel, M A S Figueredo, S Filchagin, D Finogeev, F M Fionda, E M Fiore, M Floris, S Foertsch, P Foka,S Fokin, E Fragiacomo, A Francescon,A Francisco, U Frankenfeld,G G Fronze, U Fuchs, C Furget,A Furs, M Fusco Girard,J J Gaardhøje, M Gagliardi, A M Gago,K Gajdosova, M Gallio, C D Galvan, D R Gangadharan,P Ganoti,C Gao, C Garabatos,E Garcia-Solis,K Garg,P Garg,C Gargiulo, P Gasik,E F Gauger, M B Gay Ducati, M Germain,P Ghosh,S K Ghosh,P Gianotti, P Giubellino,P Giubilato, E Gladysz-Dziadus, P Glässel,D M Goméz Coral, A Gomez Ramirez,A S Gonzalez,V Gonzalez, P González-Zamora,S Gorbunov, L Görlich, S Gotovac, V Grabski, L K Graczykowski, K L Graham,L Greiner, A Grelli, C Grigoras, V Grigoriev, A Grigoryan,S Grigoryan, N Grion, J M Gronefeld,F Grosa,J F Grosse-Oetringhaus, R Grosso,L Gruber,F R Grull,F Guber, R Guernane,B Guerzoni, K Gulbrandsen,T Gunji,A Gupta, R Gupta,I B Guzman, R Haake, C Hadjidakis,H Hamagaki, G Hamar, J C Hamon,J W Harris,A Harton, D Hatzifotiadou,S Hayashi,S T Heckel, E Hellbär, H Helstrup, A Herghelegiu,G Herrera Corral, F Herrmann, B A Hess, K F Hetland,H Hillemanns, B Hippolyte, J Hladky,D Horak,R Hosokawa, P Hristov,C Hughes, T J Humanic,N Hussain,T Hussain,D Hutter, D S Hwang, R Ilkaev, M Inaba, M Ippolitov, M Irfan,V Isakov,M S Islam,M Ivanov,V Ivanov,V Izucheev,B Jacak, N Jacazio, P M Jacobs, M B Jadhav,S Jadlovska,J Jadlovsky,C Jahnke,M J Jakubowska, M A Janik,P H S Y Jayarathna,C Jena, S Jena,M Jercic, R T Jimenez Bustamante, P G Jones, A Jusko, P Kalinak, A Kalweit,J H Kang, V Kaplin,S Kar, A Karasu Uysal, O Karavichev, T Karavicheva, L Karayan, E Karpechev, U Kebschull, R Keidel, D L D Keijdener, M Keil, M Mohisin Khan,P Khan,S A Khan, A Khanzadeev,Y Kharlov,A Khatun,A Khuntia,M M Kielbowicz,B Kileng,D W Kim, D J Kim, D Kim, H Kim,J S Kim, J Kim, M Kim, M Kim, S Kim,T Kim,S Kirsch,I Kisel, S Kiselev,A Kisiel,G Kiss, J L Klay, C Klein, J Klein, C Klein-Bösing,S Klewin, A Kluge, M L Knichel, A G Knospe,C Kobdaj, M Kofarago, T Kollegger, A Kolojvari,V Kondratiev, N Kondratyeva,E Kondratyuk, A Konevskikh, M Kopcik, M Kour,C Kouzinopoulos,O Kovalenko,V Kovalenko,M Kowalski, G Koyithatta Meethaleveedu, I Králik,A Kravčáková, M Krivda, F Krizek,E Kryshen, M Krzewicki,A M Kubera,V Kučera,C Kuhn,P G Kuijer,A Kumar,J Kumar,L Kumar,S Kumar,S Kundu, P Kurashvili, A Kurepin, A B Kurepin, A Kuryakin, S Kushpil, M J Kweon, Y Kwon,S L La Pointe, P La Rocca, C Lagana Fernandes,I Lakomov, R Langoy,K Lapidus,C Lara,A Lardeux,A Lattuca, E Laudi, R Lavicka,L Lazaridis,R Lea, L Leardini,S Lee, F Lehas, S Lehner, J Lehrbach,R C Lemmon, V Lenti,E Leogrande, I León Monzón, P Lévai,S Li,X Li,J Lien, R Lietava,S Lindal, V Lindenstruth,C Lippmann, M A Lisa,V Litichevskyi, H M Ljunggren, W J Llope, D F Lodato, P I Loenne,V Loginov, C Loizides,P Loncar,X Lopez,E López Torres,A Lowe, P Luettig, M Lunardon, G Luparello,M Lupi,T H Lutz, A Maevskaya,M Mager,S Mahajan,S M 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PHYSICAL REVIEW LETTERS（2017）
引用 15|浏览24
摘要
We present the first measurement of the two-particle transverse momentum differential correlation function, P-2 = / < p(T)>(2), in Pb-Pb collisions at root s(NN) = 2.76 TeV. Results for P-2 are reported as a function of the relative pseudorapidity (Delta eta) and azimuthal angle (Delta phi) between two particles for different collision centralities. The Delta phi dependence is found to be largely independent of Delta eta for broken vertical bar Delta eta broken vertical bar >= 0.9. In the 5% most central Pb-Pb collisions, the two-particle transverse momentum correlation function exhibits a clear double-hump structure around Delta phi=pi (i. e., on the away side), which is not observed in number correlations in the same centrality range, and thus provides an indication of the dominance of triangular flow in this collision centrality. Fourier decompositions of P-2, studied as a function of the collision centrality, show that correlations at broken vertical bar Delta eta broken vertical bar >= 0.9 can be well reproduced by a flow ansatz based on the notion that measured transverse momentum correlations are strictly determined by the collective motion of the system.
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关键词
transverse momentum correlations,lhc,collisions
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