Cargando…

Charged-particle multiplicity density at mid-rapidity in central Pb-Pb collisions at $\sqrt{s_{NN}}$ = 2.76 TeV

The first measurement of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at a centre-of-mass energy per nucleon pair sqrt(sNN) = 2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section the pseudo-rapidity density of...

Descripción completa

Detalles Bibliográficos
Autores principales: Aamodt, K, Abelev, B, Abrahantes Quintana, A, Adamova, D, Adare, A M, Aggarwal, M M, Aglieri Rinella, G, Agocs, A G, Aguilar Salazar, S, Ahammed, Z, Ahmad Masoodi, A, Ahmad, N, Ahn, S U, Akindinov, A, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz Avina, E, Alt, T, Altini, V, Altinpinar, S, Altsybeev, I, Andrei, C, Andronic, A, Anguelov, V, 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, I C, Asryan, A, Augustinus, A, Averbeck, R, Awes, T C, Aysto, J, Azmi, M D, Bach, M, Badala, A, Baek, Y W, Bagnasco, S, Bailhache, R, Bala, R, Baldini-Ferroli, R, Baldisseri, A, Baldit, A, Baltasar Dos Santos Pedrosa, F, Ban, J, Barbera, R, Barile, F, Barnafoldi, G G, Barnby, L S, Barret, V, Bartke, J, Basile, M, Bastid, N, Bathen, B, Batigne, G, Batyunya, B, Baumann, C, Bearden, I G, Beck, H, Belikov, I, Bellini, F, Bellwied, R, Belmont-Moreno, E, Beole, S, Berceanu, I, Bercuci, A, Berdermann, E, Berdnikov, Y, Bergmann, C, Betev, L, Bhasin, A, Bhati, A K, Bianchi, L, Bianchi, N, Bianchin, C, Bielcik, J, Bielcikova, J, Bilandzic, A, Biolcati, E, Blanc, A, Blanco, F, Blanco, Francesco, Blau, D, Blume, C, Boccioli, M, Bock, N, Bogdanov, A, Boggild, H, Bogolyubsky, M, Boldizsar, L, Bombara, M, Bombonati, C, Book, J, Borel, H, Borissov, A, Bortolin, C, Bose, S, Bossu, F, Botje, M, Bottger, S, Boyer, B, Braun-Munzinger, P, Bravina, L, Bregant, M, Breitner, T, Broz, M, Brun, R, Bruna, E, Bruno, G E, Budnikov, D, Buesching, H, Bugaiev, K, Busch, O, Buthelezi, Z, Caffarri, D, Cai, X, Caines, H, Calvo Villar, E, Camerini, P, Canoa Roman, V, Cara Romeo, G, Carena, F, Carena, W, Carminati, F, Casanova Diaz, A, Caselle, M, Castillo Castellanos, J, Catanescu, V, Cavicchioli, C, Cepila, J, Cerello, P, Chang, B, Chapeland, S, Charvet, J L, Chattopadhyay, S, Cherney, M, Cheshkov, C, Cheynis, B, Chiavassa, E, Chibante Barroso, V, Chinellato, D D, Chochula, P, Chojnacki, M, Christakoglou, P, Christensen, C H, Christiansen, P, Chujo, T, Cicalo, C, Cifarelli, L, Cindolo, F, Cleymans, J, Coccetti, F, Coffin, J P, Coli, S, Conesa Balbastre, G, Conesa del Valle, Z, Constantin, P, Contin, G, Contreras, J G, Cormier, T M, Corrales Morales, Y, Cortes Maldonado, I, Cortese, P, Cosentino, M R, Costa, F, Cotallo, M E, Crescio, E, Crochet, P, Cuautle, E, Cunqueiro, L, D'Erasmo, G, Dainese, A, Dalsgaard, H H, Danu, A, Das, D, Das, I, Das, K, Dash, A, Dash, S, De, S, De Azevedo Moregula, A, de Barros, G O V, De Caro, A, de Cataldo, G, de Cuveland, J, De Falco, A, De Gruttola, D, De Marco, N, De Pasquale, S, De Remigis, R, de Rooij, R, Debski, P R, Del Castillo Sanchez, E, Delagrange, H, Delgado Mercado, Y, Dellacasa, G, Deloff, A, Demanov, V, Denes, E, Deppman, A, Di Bari, D, Di Giglio, C, Di Liberto, S, Di Mauro, A, Di Nezza, P, Dietel, T, Divia, R, Djuvsland, O, Dobrin, A, Dobrowolski, T, Dominguez, I, Donigus, B, Dordic, O, Driga, O, Dubey, A K, Dubuisson, J, Ducroux, L, Dupieux, P, Dutta Majumdar, A K, Dutta Majumdar, M R, Elia, D, Emschermann, D, Engel, H, Erdal, H A, Espagnon, B, Estienne, M, Esumi, S, Evans, D, Evrard, S, Eyyubova, G, Fabjan, C W, Fabris, D, Faivre, J, Falchieri, D, Fantoni, A, Fasel, M, Fearick, R, Fedunov, A, Fehlker, D, Fekete, V, Felea, D, Feofilov, G, Fernandez Tellez, A, Ferretti, A, Ferretti, R, Figiel, J, Figueredo, M A S, Filchagin, S, Fini, R, Finogeev, D, Fionda, F M, Fiore, E M, Floris, M, Foertsch, S, Foka, P, Fokin, S, Fragiacomo, E, Fragkiadakis, M, Frankenfeld, U, Fuchs, U, Furano, F, Furget, C, Fusco Girard, M, Gaardhoje, J J, Gadrat, S, Gagliardi, M, Gago, A, Gallio, M, Gangadharan, D R, Ganoti, P, Ganti, M S, Garabatos, C, Garcia-Solis, E, Garishvili, I, Gemme, R, Gerhard, J, Germain, M, Geuna, C, Gheata, A, Gheata, M, Ghidini, B, Ghosh, P, Gianotti, P, Girard, M R, Giraudo, G, Giubellino, P, Gladysz-Dziadus, E, Glassel, P, Gomez, R, Ferreiro, E G, Gonzalez Santos, H, González-Trueba, L H, González-Zamora, P, Gorbunov, S, Gotovac, S, Grabski, V, Grajcarek, R, Grelli, A, Grigoras, A, Grigoras, C, Grigoriev, V, Grigoryan, A, Grigoryan, S, Grinyov, B, Grion, N, Gros, P, Grosse-Oetringhaus, J F, Grossiord, J Y, Grosso, R, Guber, F, Guernane, R, Guerra Gutierrez, C, Guerzoni, B, Gulbrandsen, K, Gunji, T, Gupta, A, Gupta, R, Gutbrod, H, Haaland, O, Hadjidakis, C, Haiduc, M, Hamagaki, H, Hamar, G, Harris, J W, Hartig, M, Hasch, D, Hasegan, D, Hatzifotiadou, D, Hayrapetyan, A, Heide, M, Heinz, M, Helstrup, H, Herghelegiu, A, Hernandez, C, Herrera Corral, G, Herrmann, N, Hetland, K F, Hicks, B, Hille, P T, Hippolyte, B, Horaguchi, T, Hori, Y, Hristov, P, Hrivnacova, I, Huang, M, Huber, S, Humanic, T J, Hwang, D S, Ichou, R, Ilkaev, R, Ilkiv, I, Inaba, M, Incani, E, Innocenti, G M, Innocenti, P G, Ippolitov, M, Irfan, M, Ivan, C, Ivanov, A, Ivanov, M, Ivanov, V, Jacholkowski, A, Jacobs, P M, Jancurova, L, Jangal, S, Janik, R, Jena, S, Jirden, L, Jones, G T, Jones, P G, Jovanovic, P, Jung, H, Jung, W, Jusko, A, Kalcher, S, Kalinak, P, Kalisky, M, Kalliokoski, T, Kalweit, A, Kamermans, R, Kanaki, K, Kang, E, Kang, J H, Kaplin, V, Karavichev, O, Karavicheva, T, Karpechev, E, Kazantsev, A, Kebschull, U, Keidel, R, Khan, M M, Khan, S A, Khanzadeev, A, Kharlov, Y, Kileng, B, Kim, D J, Kim, D S, Kim, D W, Kim, H N, Kim, J H, Kim, J S, Kim, M, Kim, S, Kim, S H, Kirsch, S, Kisel, I, Kiselev, S, Kisiel, A, Klay, J L, Klein, J, Klein-Bosing, C, Kliemant, M, Klovning, A, Kluge, A, Knichel, M L, Koch, K, Kohler, M, Kolevatov, R, Kolojvari, A, Kondratiev, V, Kondratyeva, N, Konevskih, A, Kornas, E, Kottachchi Kankanamge Don, C, Kour, R, Kowalski, M, Kox, S, Koyithatta Meethaleveedu, G, Kozlov, K, Kral, J, Kralik, I, Kramer, F, Kraus, I, Krawutschke, T, Kretz, M, Krivda, M, Krizek, F, Krumbhorn, D, Krus, M, Kryshen, E, Krzewicki, M, Kucheriaev, Y, Kuhn, C, Kuijer, P G, Kurashvili, P, Kurepin, A, Kurepin, A B, Kuryakin, A, Kushpil, S, Kushpil, V, Kweon, M J, Kwon, Y, La Rocca, P, Ladron de Guevara, P, Lafage, V, Lara, C, Lardeux, A, Larsen, D T, Lazzeroni, C, Le Bornec, Y, Lea, R, Lee, K S, Lee, S C, Lefevre, F, Lehnert, J, Leistam, L, Lenhardt, M, Lenti, V, Leon Monzon, I, Leon Vargas, H, Levai, P, Li, X, Lien, J, Lietava, R, Lindal, S, Lindenstruth, V, Lippmann, C, Lisa, M A, Liu, L, Loenne, P I, Loggins, V R, Loginov, V, Lohn, S, Loizides, C, Loo, K K, Lopez, X, Lopez Noriega, M, Lopez Torres, E, Lovhoiden, G, Lu, X G, Luettig, P, Lunardon, M, Luparello, G, Luquin, L, Luzzi, C, Ma, K, Ma, R, Madagodahettige-Don, D M, Maevskaya, A, Mager, M, Mahapatra, D P, Maire, A, Mal'Kevich, D, Malaev, M, Maldonado Cervantes, I, Malinina, L, Malzacher, P, Mamonov, A, Manceau, L, Mangotra, L, Manko, V, Manso, F, Manzari, V, Mao, Y, Mares, J, Margagliotti, G V, Margotti, A, Marin, A, Markert, C, Martashvili, I, Martinengo, P, Martinez, M I, Martinez Davalos, A, Martinez Garcia, G, Martynov, Y, Masciocchi, S, Masera, M, Masoni, A, Massacrier, L, Mastromarco, M, Mastroserio, A, Matthews, Z L, Matyja, A, Mayani, D, Mayer, C, Mazza, G, Mazzoni, M A, Meddi, F, Menchaca-Rocha, A, Mendez Lorenzo, P, Menis, I, Mercado Perez, J, Meres, M, Mereu, P, Miake, Y, Midori, J, Milano, L, Milosevic, J, Mischke, A, Miskowiec, D, Mitu, C, Mlynarz, J, Mohanty, A K, Mohanty, B, Molnar, L, Montano Zetina, L, Monteno, M, Montes, E, Morando, M, Moreira De Godoy, D A, Moretto, S, Morsch, A, Muccifora, V, Mudnic, E, Muhuri, S, Muller, H, Munhoz, M G, Munoz, J, Musa, L, Musso, A, Nandi, B K, Nania, R, Nappi, E, Nattrass, C, Navach, F, Navin, S, Nayak, T K, Nazarenko, S, Nazarov, G, Nedosekin, A, Nendaz, F, Newby, J, Nicassio, M, Nielsen, B S, Niida, T, Nikolaev, S, Nikolic, V, Nikulin, S, Nikulin, V, Nilsen, B S, Nilsson, M S, Noferini, F, Nooren, G, Novitzky, N, Nyanin, A, Nyatha, A, Nygaard, C, Nystrand, J, Obayashi, H, Ochirov, A, Oeschler, H, Oh, S K, Oleniacz, J, Oppedisano, C, Ortiz Velasquez, A, Ortona, G, Oskarsson, A, Ostrowski, P, Otterlund, I, Otwinowski, J, Oyama, K, Ozawa, K, Pachmayer, Y, Pachr, M, Padilla, F, Pagano, P, Jayarathna, S P, Paic, G, Painke, F, Pajares, C, Pal, S, Pal, S K, Palaha, A, Palmeri, A, Pappalardo, G S, Park, W J, Patalakha, D I, Paticchio, V, Pavlinov, A, Pawlak, T, Peitzmann, T, Peresunko, D, Perez Lara, C E, Perini, D, Perrino, D, Peryt, W, Pesci, A, Peskov, V, Pestov, Y, Peters, A J, Petracek, V, Petran, M, Petris, M, Petrov, P, Petrovici, M, Petta, C, Piano, S, Piccotti, A, Pikna, M, Pillot, P, Pinazza, O, Pinsky, L, Pitz, N, Piuz, F, Piyarathna, D B, Platt, R, Ploskon, M, Pluta, J, Pocheptsov, T, Pochybova, S, Podesta-Lerma, P L M, Poghosyan, M G, Polak, K, Polichtchouk, B, Pop, A, Porteboeuf, S, Pospisil, V, Potukuchi, B, Prasad, S K, Preghenella, R, Prino, F, Pruneau, C A, Pshenichnov, I, Puddu, G, Pulvirenti, A, Punin, V, Putis, M, Putschke, J, Quercigh, E, Qvigstad, H, Rachevski, A, Rademakers, A, Rademakers, O, Radomski, S, Raiha, T S, Rak, J, Rakotozafindrabe, A, Ramello, L, Ramirez Reyes, A, Rammler, M, Raniwala, R, Raniwala, S, Rasanen, S S, Read, K F, Real, J, Redlich, K, Renfordt, R, Reolon, A R, Reshetin, A, Rettig, F, Revol, J P, Reygers, K, Ricaud, H, Riccati, L, Ricci, R A, Richter, M, Riedler, P, Riegler, W, Riggi, F, Rodriguez Cahuantzi, M, Rohr, D, Rohrich, D, Romita, R, Ronchetti, F, Rosinsky, P, Rosnet, P, Rossegger, S, Rossi, A, Roukoutakis, F, Rousseau, S, Roy, C, Roy, P, Rubio Montero, A J, Rui, R, Rivetti, A, Rusanov, I, Ryabinkin, E, Rybicki, A, Sadovsky, S, Safarik, K, Sahoo, R, Sahu, P K, Saini, J, Saiz, P, Sakai, S, Sakata, D, Salgado, C A, Samanta, T, Sambyal, S, Samsonov, V, Sanchez Castro, X, Sandor, L, Sandoval, A, Sano, M, Sano, S, Santo, R, Santoro, R, Sarkamo, J, Saturnini, P, Scapparone, E, Scarlassara, F, Scharenberg, R P, Schiaua, C, Schicker, R, Schmidt, C, Schmidt, H R, Schreiner, S, Schuchmann, S, Schukraft, J, Schutz, Y, Schwarz, K, Schweda, K, Scioli, G, Scomparin, E, Scott, P A, Scott, R, Segato, G, Selyuzhenkov, I, Senyukov, S, Seo, J, Serci, S, Serradilla, E, Sevcenco, A, Sgura, I, Shabratova, G, Shahoyan, R, Sharma, N, Sharma, S, Shigaki, K, Shimomura, M, Shtejer, K, Sibiriak, Y, Siciliano, M, Sicking, E, Siemiarczuk, T, Silenzi, A, Silvermyr, D, Simonetti, G, Singaraju, R, Singh, R, Singhal, V, Sinha, B C, Sinha, T, Sitar, B, Sitta, M, Skaali, T B, Skjerdal, K, Smakal, R, Smirnov, N, Snellings, R, Sogaard, C, Soloviev, A, Soltz, R, Son, H, Song, J, Song, M, Soos, C, Soramel, F, Spyropoulou-Stassinaki, M, Srivastava, B K, Stachel, J, Stan, I, Stefanek, G, Stefanini, G, Steinbeck, T, Steinpreis, M, Stenlund, E, Steyn, G, Stocco, D, Stock, R, Stokkevag, C H, Stolpovskiy, M, Strmen, P, Suaide, A A P, Subieta Vasquez, M A, Sugitate, T, Suire, C, Sukhorukov, M, Sumbera, M, Susa, T, Swoboda, D, Symons, T J M, Szanto de Toledo, A, Szarka, I, Szostak, A, Tagridis, C, Takahashi, J, Tapia Takaki, J D, Tauro, A, Tavlet, M, Tejeda Munoz, G, Telesca, A, Terrevoli, C, Thader, J, Thomas, D, Thomas, J H, Tieulent, R, Timmins, A R, Tlusty, D, Toia, A, Torii, H, Toscano, L, Tosello, F, Traczyk, T, Truesdale, D, Trzaska, W H, Tsuji, T, Tumkin, A, Turrisi, R, Turvey, A J, Tveter, T S, Ulery, J, Ullaland, K, Uras, A, Urban, J, Urciuoli, G M, Usai, G L, Vacchi, A, Vajzer, M, Vala, M, Valencia Palomo, L, Vallero, S, van der Kolk, N, van Leeuwen, M, Vande Vyvre, P, Vannucci, L, Vargas, A, Varma, R, Vasileiou, M, Vasiliev, A, Vechernin, V, Veldhoen, M, Venaruzzo, M, Vercellin, E, Vergara, S, Vernekohl, D C, Vernet, R, Verweij, M, Vickovic, L, Viesti, G, Vikhlyantsev, O, Vilakazi, Z, Villalobos Baillie, O, Vinogradov, A, Vinogradov, L, Vinogradov, Y, Virgili, T, Viyogi, Y P, Vodopyanov, A, Voloshin, K, Voloshin, S, Volpe, G, von Haller, B, Vranic, D, Ovrebekk, G, Vrlakova, J, Vulpescu, B, Vyushin, A, Wagner, B, Wagner, V, Wan, R, Wang, D, Wang, Y, Watanabe, K, Wessels, J P, Westerhoff, U, Wiechula, J, Wikne, J, Wilde, M, Wilk, A, Wilk, G, Williams, M C S, Windelband, B, Xaplanteris Karampatsos, L, Yang, H, Yang, S, Yasnopolskiy, S, Yi, J, Yin, Z, Yokoyama, H, Yoo, I K, Yu, W, Yuan, X, Yushmanov, I, Zabrodin, E, Zach, C, Zampolli, C, Zaporozhets, S, Zarochentsev, A, Zavada, P, Zaviyalov, N, Zbroszczyk, H, Zelnicek, P, Zenin, A, Zgura, I, Zhalov, M, Zhang, X, Zhou, D, Zichichi, A, Zinovjev, G, Zoccarato, Y, Zynovyev, M
Lenguaje:eng
Publicado: 2010
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevLett.105.252301
http://cds.cern.ch/record/1308007
Descripción
Sumario:The first measurement of the charged-particle multiplicity density at mid-rapidity in Pb-Pb collisions at a centre-of-mass energy per nucleon pair sqrt(sNN) = 2.76 TeV is presented. For an event sample corresponding to the most central 5% of the hadronic cross section the pseudo-rapidity density of primary charged particles at mid-rapidity is 1584 +- 4 (stat) +- 76 (sys.), which corresponds to 8.3 +- 0.4 (sys.) per participating nucleon pair. This represents an increase of about a factor 1.9 relative to pp collisions at similar collision energies, and about a factor 2.2 to central Au-Au collisions at sqrt(sNN) = 0.2 TeV. This measurement provides the first experimental constraint for models of nucleus-nucleus collisions at LHC energies.