| Literature DB >> 24476260 |
B Abelev1, J Adam2, D Adamová3, A M Adare4, M M Aggarwal5, G Aglieri Rinella6, M Agnello7, A G Agocs8, A Agostinelli9, Z Ahammed10, N Ahmad11, A Ahmad Masoodi11, I Ahmed12, S A Ahn13, S U Ahn13, I Aimo14, M Ajaz12, A Akindinov15, D Aleksandrov16, B Alessandro17, D Alexandre18, A Alici19, A Alkin20, J Alme21, T Alt22, V Altini23, S Altinpinar24, I Altsybeev25, C Andrei26, A Andronic27, V Anguelov28, J Anielski29, C Anson30, T Antičić31, F Antinori32, P Antonioli33, L Aphecetche34, H Appelshäuser35, N Arbor36, S Arcelli9, A Arend35, N Armesto37, R Arnaldi17, T Aronsson4, I C Arsene27, M Arslandok35, A Asryan25, A Augustinus6, R Averbeck27, T C Awes38, J Äystö39, M D Azmi40, M Bach22, A Badalà41, Y W Baek42, R Bailhache35, R Bala43, A Baldisseri44, F Baltasar Dos Santos Pedrosa6, J Bán45, R C Baral46, R Barbera47, F Barile23, G G Barnaföldi8, L S Barnby18, V Barret48, J Bartke49, M Basile9, N Bastid48, S Basu10, B Bathen29, G Batigne34, B Batyunya50, P C Batzing51, C Baumann35, I G Bearden52, H Beck35, N K Behera53, I Belikov54, F Bellini9, R Bellwied55, E Belmont-Moreno56, G Bencedi8, S Beole57, I Berceanu26, A Bercuci26, Y Berdnikov58, D Berenyi8, A A E Bergognon34, R A Bertens59, D Berzano60, L Betev6, A Bhasin61, A K Bhati5, J Bhom62, L Bianchi57, N Bianchi63, C Bianchin59, J Bielčík2, J Bielčíková3, A Bilandzic52, S Bjelogrlic59, F Blanco64, F Blanco64, D Blau16, C Blume35, M Boccioli6, F Bock65, S Böttger66, A Bogdanov67, H Bøggild52, M Bogolyubsky68, L Boldizsár8, M Bombara69, J Book35, H Borel44, A Borissov70, F Bossú71, M Botje72, E Botta57, E Braidot73, P Braun-Munzinger27, M Bregant34, T Breitner66, T A Broker35, T A Browning74, M Broz75, R Brun6, E Bruna60, G E Bruno23, D Budnikov76, H Buesching35, S Bufalino60, P Buncic6, O Busch28, Z Buthelezi71, D Caffarri77, X Cai78, H Caines4, A Caliva59, E Calvo Villar79, P Camerini80, V Canoa Roman81, G Cara Romeo33, F Carena6, W Carena6, N Carlin Filho82, F Carminati6, A Casanova Díaz63, J Castillo Castellanos44, J F Castillo Hernandez27, E A R Casula83, V Catanescu26, C Cavicchioli6, C Ceballos Sanchez84, J Cepila2, P Cerello17, B Chang85, S Chapeland6, J L Charvet44, S Chattopadhyay86, S Chattopadhyay86, M Cherney87, C Cheshkov88, B Cheynis89, V Chibante Barroso6, D D Chinellato55, P Chochula6, M Chojnacki52, S Choudhury10, P Christakoglou72, C H Christensen52, P Christiansen90, T Chujo62, S U Chung91, C Cicalo92, L Cifarelli93, F Cindolo33, J Cleymans71, F Colamaria23, D Colella23, A Collu83, G Conesa Balbastre36, Z Conesa del Valle94, M E Connors4, G Contin80, J G Contreras81, T M Cormier70, Y Corrales Morales57, P Cortese95, I Cortés Maldonado96, M R Cosentino73, F Costa6, M E Cotallo64, E Crescio81, P Crochet48, E Cruz Alaniz56, R Cruz Albino81, E Cuautle97, L Cunqueiro63, T R Czopowicz98, A Dainese77, R Dang78, A Danu99, D Das86, I Das100, S Das101, K Das86, A Dash102, S Dash53, S De10, G O V de Barros82, A De Caro103, G de Cataldo104, J de Cuveland22, A De Falco83, D De 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Loenne24, V R Loggins70, V Loginov67, D Lohner28, C Loizides73, K K Loo39, X Lopez48, E López Torres84, G Løvhøiden51, X-G Lu28, P Luettig35, M Lunardon112, J Luo78, G Luparello59, C Luzzi6, R Ma4, K Ma78, D M Madagodahettige-Don55, A Maevskaya113, M Mager142, D P Mahapatra46, A Maire28, M Malaev58, I Maldonado Cervantes97, L Malinina143, D Mal'kevich15, P Malzacher27, A Mamonov76, L Manceau17, L Mangotra61, V Manko16, F Manso48, V Manzari104, M Marchisone144, J Mareš145, G V Margagliotti146, A Margotti33, A Marín27, C Markert147, M Marquard35, I Martashvili148, N A Martin27, J Martin Blanco34, P Martinengo6, M I Martínez96, G Martínez García34, Y Martynov20, A Mas34, S Masciocchi27, M Masera57, A Masoni92, L Massacrier34, A Mastroserio23, A Matyja49, C Mayer49, J Mazer148, R Mazumder149, M A Mazzoni107, F Meddi150, A Menchaca-Rocha56, J Mercado Pérez28, M Meres75, Y Miake62, K Mikhaylov151, L Milano152, J Milosevic153, A Mischke59, A N Mishra154, D Miśkowiec27, C Mitu99, J Mlynarz70, 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Renfordt35, A R Reolon63, A Reshetin113, F Rettig22, J-P Revol6, K Reygers28, L Riccati17, R A Ricci164, T Richert90, M Richter51, P Riedler6, W Riegler6, F Riggi165, A Rivetti17, M Rodríguez Cahuantzi96, A Rodriguez Manso72, K Røed166, E Rogochaya50, D Rohr22, D Röhrich24, R Romita167, F Ronchetti63, P Rosnet48, S Rossegger6, A Rossi6, P Roy86, C Roy54, A J Rubio Montero64, R Rui80, R Russo57, E Ryabinkin16, A Rybicki49, S Sadovsky68, K Safařík6, R Sahoo149, P K Sahu46, J Saini10, H Sakaguchi168, S Sakai169, D Sakata62, C A Salgado37, J Salzwedel30, S Sambyal61, V Samsonov58, X Sanchez Castro54, L Sándor45, A Sandoval56, M Sano62, G Santagati47, R Santoro170, D Sarkar10, E Scapparone33, F Scarlassara112, R P Scharenberg74, C Schiaua26, R Schicker28, C Schmidt27, H R Schmidt125, S Schuchmann35, J Schukraft6, M Schulc2, T Schuster4, Y Schutz111, K Schwarz27, K Schweda27, G Scioli9, E Scomparin17, P A Scott18, R Scott148, G Segato112, I Selyuzhenkov27, S Senyukov54, J Seo91, S Serci83, E 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Abstract
The directed flow of charged particles at midrapidity is measured in Pb-Pb collisions at √(s(NN))=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.Entities:
Year: 2013 PMID: 24476260 DOI: 10.1103/PhysRevLett.111.232302
Source DB: PubMed Journal: Phys Rev Lett ISSN: 0031-9007 Impact factor: 9.161