Artículos de revistas
Directed Flow of Charged Particles at Midrapidity Relative to the Spectator Plane in Pb-Pb Collisions at root s(NN)=2.76TeV
Registro en:
Physical Review Letters. Amer Physical Soc, v. 111, n. 23, 2013.
0031-9007
1079-7114
WOS:000328618300006
10.1103/PhysRevLett.111.232302
Autor
Abelev, B
Abelev, B
Adam, J
Adamova, D
Adare, AM
Aggarwal, MM
Rinella, GA
Agnello, M
Agocs, AG
Agostinelli, A
Ahammed, Z
Ahmad, N
Masoodi, AA
Ahmed, I
Ahn, SA
Ahn, SU
Aimo, I
Ajaz, M
Akindinov, A
Aleksandrov, D
Alessandro, B
Alexandre, D
Alici, A
Alkin, A
Alme, J
Alt, T
Altini, V
Altinpinar, S
Altsybeev, I
Andrei, C
Andronic, A
Anguelov, V
Anielski, J
Anson, C
Anticic, T
Antinori, F
Antonioli, P
Aphecetche, L
Appelshauser, H
Arbor, N
Arcelli, S
Arend, A
Armesto, N
Arnaldi, R
Aronsson, T
Arsene, IC
Arslandok, M
Asryan, A
Augustinus, A
Averbeck, R
Awes, TC
Aysto, J
Azmi, MD
Bach, M
Badala, A
Baek, YW
Bailhache, R
Bala, R
Baldisseri, A
Pedrosa, FBD
Ban, J
Baral, RC
Barbera, R
Barile, F
Barnafoldi, GG
Barnby, LS
Barret, V
Bartke, J
Basile, M
Bastid, N
Basu, S
Bathen, B
Batigne, G
Batyunya, B
Batzing, PC
Baumann, C
Bearden, IG
Beck, H
Behera, NK
Belikov, I
Bellini, F
Bellwied, R
Belmont-Moreno, E
Bencedi, G
Beole, S
Berceanu, I
Bercuci, A
Berdnikov, Y
Berenyi, D
Bergognon, AAE
Bertens, RA
Berzano, D
Betev, L
Bhasin, A
Bhati, AK
Bhom, J
Bianchi, L
Bianchi, N
Bianchin, C
Bielcik, J
Bielcikova, J
Bilandzic, A
Bjelogrlic, S
Blanco, F
Blanco, F
Blau, D
Blume, C
Boccioli, M
Bock, F
Bottger, S
Bogdanov, A
Boggild, H
Bogolyubsky, M
Boldizsar, L
Bombara, M
Book, J
Borel, H
Borissov, A
Bossu, F
Botje, M
Botta, E
Braidot, E
Braun-Munzinger, P
Bregant, M
Breitner, T
Broker, TA
Browning, TA
Broz, M
Brun, R
Bruna, E
Bruno, GE
Budnikov, D
Buesching, H
Bufalino, S
Buncic, P
Busch, O
Buthelezi, Z
Caffarri, D
Cai, X
Caines, H
Caliva, A
Villar, EC
Camerini, P
Roman, VC
Romeo, GC
Carena, F
Carena, W
Carlin, N
Carminati, F
Diaz, AC
Castellanos, JC
Hernandez, JFC
Casula, EAR
Catanescu, V
Cavicchioli, C
Sanchez, CC
Cepila, J
Cerello, P
Chang, B
Chapeland, S
Charvet, JL
Chattopadhyay, S
Chattopadhyay, S
Cherney, M
Cheshkov, C
Cheynis, B
Barroso, VC
Chinellato, DD
Chochula, P
Chojnacki, M
Choudhury, S
Christakoglou, P
Christensen, CH
Christiansen, P
Chujo, T
Chung, SU
Cicalo, C
Cifarelli, L
Cindolo, F
Cleymans, J
Colamaria, F
Colella, D
Collu, A
Balbastre, GC
del Valle, ZC
Connors, ME
Contin, G
Contreras, JG
Cormier, TM
Morales, YC
Cortese, P
Maldonado, IC
Cosentino, MR
Costa, F
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Crochet, P
Alaniz, EC
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Cuautle, E
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D'Erasmo, G
de Rooij, R
Corchero, MAD
Di Bari, D
Dietel, T
Di Giglio, C
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Di Mauro, A
Di Nezza, P
Divia, R
Djuvsland, O
Dobrin, A
Dobrowolski, T
Donigus, B
Dordic, O
Dubey, AK
Dubla, A
Ducroux, L
Dupieux, P
Majumdar, AKD
Elia, D
Elwood, BG
Emschermann, D
Engel, H
Erazmus, B
Erdal, HA
Eschweiler, D
Espagnon, B
Estienne, M
Esumi, S
Evans, D
Evdokimov, S
Eyyubova, G
Fabris, D
Faivre, J
Falchieri, D
Fantoni, A
Fasel, M
Fehlker, D
Feldkamp, L
Felea, D
Feliciello, A
Fenton-Olsen, B
Feofilov, G
Telez, AF
Ferretti, A
Festanti, A
Figiel, J
Figueredo, MAS
Filchagin, S
Finogeev, D
Fionda, FM
Fiore, EM
Floratos, E
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Foertsch, S
Foka, P
Fokin, S
Fragiacomo, E
Francescon, A
Frankenfeld, U
Fuchs, U
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Girard, MF
Gaardhoje, JJ
Gagliardi, M
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Gallio, M
Gangadharan, DR
Ganoti, P
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Gerhard, J
Germain, M
Gheata, A
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Gonzalez-Zamora, P
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Gotovac, S
Graczykowski, LK
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Guber, F
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Gunji, T
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Bustamante, RTJ
Jones, PG
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Jusko, A
Kaidalov, AB
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Kalina, P
Kalliokoski, T
Kalweit, A
Kang, JH
Kaplin, V
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Zelnicek, P
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Institución
Resumen
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The directed flow of charged particles at midrapidity is measured in Pb-Pb collisions at root s(NN) p 2: 76 TeV relative to the collision symmetry plane defined by the spectator nucleons. A negative slope of the rapidity-odd directed flow component with approximately 3 times smaller magnitude than found at the highest RHIC energy is observed. This suggests a smaller longitudinal tilt of the initial system and disfavors the strong fireball rotation predicted for the LHC energies. The rapidity-even directed flow component is measured for the first time with spectators and found to be independent of pseudorapidity with a sign change at transverse momenta p(T) between 1.2 and 1: 7 GeV/c. Combined with the observation of a vanishing rapidity-even p(T) shift along the spectator deflection this is strong evidence for dipolelike initial density fluctuations in the overlap zone of the nuclei. Similar trends in the rapidity-even directed flow and the estimate from two-particle correlations at midrapidity, which is larger by about a factor of 40, indicate a weak correlation between fluctuating participant and spectator symmetry planes. These observations open new possibilities for investigation of the initial conditions in heavy-ion collisions with spectator nucleons. 111 23 State Committee of Science, World Federation of Scientists (WFS) Swiss Fonds Kidagan, Armenia, Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Financiadora de Estudos e Projetos (FINEP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) National Natural Science Foundation of China (NSFC) Chinese Ministry of Education (CMOE) Ministry of Science and Technology of China (MSTC) Ministry of Education and Youth of the Czech Republic Danish Natural Science Research Council Carlsberg Foundation Danish National Research Foundation European Research Council under the European Community's Seventh Framework Programme Helsinki Institute of Physics and the Academy of Finland Helmholtz Association General Secretariat for Research and Technology, Ministry of Development, Greece National Office for Research and Technology (NKTH) Department of Atomic Energy and Department of Science and Technology of the Government of India Istituto Nazionale di Fisica Nucleare (INFN) Centro Fermi-Museo Storico della Fisica e Centro Studie Ricerche ``Enrico Fermi,' Italy Specially Promoted Research, Japan Joint Institute for Nuclear Research, Dubna National Research Foundation of Korea (NRF) CONACYT, DGAPA, Mexico ALFA-ECEPLANET Program (European Particle Physics Latin American Network) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)