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http://repositorio.unicamp.br/jspui/handle/REPOSIP/62952
| Type: | Artigo de periódico |
| Title: | Charmonium and e(+)e(-) pair photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at root s(NN)=2.76 TeV |
| Author: | Abbas, E 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 Avina, EA 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 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 Villar, EC Camerini, P Roman, VC Romeo, GC Carena, W Carena, F 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 Cotallo, ME Crescio, E Crochet, P Alaniz, EC Albino, RC Cuautle, E Cunqueiro, L Dainese, A Dang, R Danu, A Das, K Das, I Das, S Das, D Dash, S Dash, A De, S de Barros, GOV De Caro, A de Cataldo, G de Cuveland, J De Falco, A De Gruttola, D Delagrange, H Deloff, A De Marco, N Denes, E De Pasquale, S Deppman, A Erasmo, GD de Rooij, R Diaz Corchero, MA Di Bari, D Dietel, T Di Giglio, C Di Liberto, S 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 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 Tellez, AF Ferretti, A Festanti, A Figiel, J Figueredo, MAS Filchagin, S Finogeev, D Fionda, FM Fiore, EM Floratos, E Floris, M Foertsch, S Foka, P Fokin, S Fragiacomo, E Francescon, A Frankenfeld, U Fuchs, U Furget, C Girard, MF Gaardhoje, JJ Gagliardi, M Gago, A Gallio, M Gangadharan, D Ganoti, P Garabatos, C Garcia-Solis, E Gargiulo, C Garishvili, I Gerhard, J Germain, M Geuna, C Gheata, M Gheata, A Ghidini, B Ghosh, P Gianotti, P Giubellino, P Gladysz-Dziadus, E Glassel, P Gomez, R Ferreiro, EG Gonzalez-Trueba, LH Gonzalez-Zamora, P Gorbunov, S Goswami, A Gotovac, S Graczykowski, LK Grajcarek, R Grelli, A Grigoras, C Grigoras, A Grigoriev, V Grigoryan, A Grigoryan, S Grinyov, B Grion, N Gros, P Grosse-Oetringhaus, JF Grossiord, JY Grosso, R Guber, F Guernane, R Guerzoni, B Guilbaud, M Gulbrandsen, K Gulkanyan, H Gunji, T Gupta, A Gupta, R Haake, R Haaland, O Hadjidakis, C Haiduc, M Hamagaki, H Hamar, G Han, BH Hanratty, LD Hansen, A Harmanova-Tothova, Z Harris, JW Hartig, M Harton, A Hatzifotiadou, D Hayashi, S Hayrapetyan, A Heckel, ST Heide, M Helstrup, H Herghelegiu, A Corral, GH Herrmann, N Hess, BA Hetland, KF Hicks, B Hippolyte, B Hori, Y Hristov, P Hrivnacova, I Huang, M Humanic, TJ Hwang, DS Ichou, R Ilkaev, R Ilkiv, I Inaba, M Incani, E Innocenti, GM Innocenti, PG Ippolitov, M Irfan, M Ivan, C Ivanov, M Ivanov, A Ivanov, V Ivanytskyi, O Jachokowski, A Jacobs, PM Jahnke, C Jang, HJ Janik, MA Jayarathna, PHSY Jena, S Jha, DM Bustamante, RTJ Jones, PG Jung, H Jusko, A Kaidalov, AB Kalcher, S Kalinak, P Kalliokoski, T Kalweit, A Kang, JH Kaplin, V Kar, S Uysal, AK Karavichev, O Karavicheva, T Karpechev, E Kazantsev, A Kebschull, U Keidel, R Ketzer, B Khan, MM Khan, P Khan, SA Khan, KH Khanzadeev, A Kharlov, Y Kileng, B Kim, M Kim, T Kim, B Kim, S Kim, M Kim, DJ Kim, JS Kim, JH Kim, DW Kirsch, S Kisel, I Kiselev, S Kisiel, A Klay, JL Klein, J Klein-Bosing, C Kliemant, M Kluge, A Knichel, ML Knospe, AG Kohler, MK Kollegger, T Kolojvari, A Kompaniets, M Kondratiev, V Kondratyeva, N Konevskikh, A Kovalenko, V Kowalski, M Kox, S Meethaleveedu, GK Kral, J Kralik, I Kramer, F Kravcakova, A Krelina, M Kretz, M Krivda, M Krizek, F Krus, M Kryshen, E Krzewicki, M Kucera, V Kucheriaev, Y Kugathasan, T Kuhn, C Kuijer, PG Kulakov, I Kumar, J Kurashvili, P Kurepin, A Kurepin, AB Kuryakin, A Kushpil, V Kushpil, S Kvaerno, H Kweon, MJ Kwon, Y de Guevara, PL Fernandes, CL Lakomov, I Langoy, R La Pointe, SL Lara, C Lardeux, A La Rocca, P Lea, R Lechman, M Lee, SC Lee, GR Legrand, I Lehnert, J Lemmon, RC Lenhardt, M Lenti, V Leon, H Leoncino, M Monzon, IL Levai, P Li, S Lien, J Lietava, R Lindal, S Lindenstruth, V Lippmann, C Lisa, MA Ljunggren, HM Lodato, DF Loenne, PI Loggins, VR Loginov, V Lohner, D Loizides, C Loo, KK Lopez, X Torres, EL Lovhoiden, G Lu, XG Luettig, P Lunardon, M Luo, J Luparello, G Luzzi, C Ma, R Ma, K Madagodahettige-Don, DM Maevskaya, A Mager, M Mahapatra, DP Maire, A Malaev, M Cervantes, IM Malinina, L Mal'Kevich, D Malzacher, P Mamonov, A Manceau, L Mangotra, L Manko, V Manso, F Manzari, V Mao, Y Marchisone, M Mares, J Margagliotti, GV Margotti, A Marin, A Markert, C Marquard, M Martashvili, I Martin, NA Martinengo, P Martinez, MI Garcia, GM Martynov, Y Mas, A Masciocchi, S Masera, M Masoni, A Massacrier, L Mastroserio, A Matyja, A Mayer, C Mazer, J Mazumder, R Mazzoni, MA Meddi, F Menchaca-Rocha, A Perez, JM Meres, M Miake, Y Mikhaylov, K Milano, L Milosevic, J Mischke, A Mishra, AN Miskowiec, D Mitu, C Mizuno, S Mlynarz, J Mohanty, B Molnar, L Zetina, LM Monteno, M Montes, E Moon, T Morando, M De Godoy, DAM Moretto, S Morreale, A Morsch, A Muccifora, V Mudnic, E Muhuri, S Mukherjee, M Muller, H Munhoz, MG Murray, S Musa, L Musinsky, J Nandi, BK Nania, R Nappi, E Nattrass, C Nayak, TK Nazarenko, S Nedosekin, A Nicassio, M Niculescu, M Nielsen, BS Niida, T Nikolaev, S Nikolic, V Nikulin, S Nikulin, V Nilsen, BS Nilsson, MS Noferini, F Nomokonov, P Nooren, G Nyanin, A Nyatha, A Nygaard, C Nystrand, J Ochirov, A Oeschler, H Oh, S Oh, SK Oleniacz, J Da Silva, ACO Onderwaater, J Oppedisano, C Velasquez, AO Oskarsson, A Ostrowski, P Otwinowski, J Oyama, K Ozawa, K Pachmayer, Y Pachr, M Padilla, F Pagano, P Paic, G Painke, F Pajares, C Pal, SK Palaha, A Palmeri, A Papikyan, V Pappalardo, GS Park, WJ Passfeld, A Patalakha, DI Paticchio, V Paul, B Pavlinov, A Pawlak, T Peitzmann, T Da Costa, HP De Oliveira, EP Peresunko, D Lara, CEP Perrino, D Peryt, W Pesci, A Pestov, Y Petracek, V Petran, M Petris, M Petrov, P Petrovici, M Petta, C Piano, S Pikna, M Pillot, P Pinazza, O Pinsky, L Pitz, N Piyarathna, DB Planinic, M Ploskon, M Pluta, J Pocheptsov, T Pochybova, S Podesta-Lerma, PLM Poghosyan, MG Polak, K Polichtchouk, B Poljak, N Pop, A Porteboeuf-Houssais, S Pospisil, V Potukuchi, B Prasad, SK Preghenella, R Prino, F Pruneau, CA Pshenichnov, I Puddu, G Punin, V Putschke, J Qvigstad, H Rachevski, A Rademakers, A Raiha, TS Rak, J Rakotozafindrabe, A Ramello, L Raniwala, S Raniwala, R Rasanen, SS Rascanu, BT Rathee, D Rauch, W Rauf, AW Razazi, V Read, KF Real, JS Redlich, K Reed, RJ Rehman, A Reichelt, P Reicher, M Renfordt, R Reolon, AR Reshetin, A Rettig, F Revol, JP Reygers, K Riccati, L Ricci, RA Richert, T Richter, M Riedler, P Riegler, W Riggi, F Rivetti, A Cahuantzi, MR Manso, AR Roed, K Rogochaya, E Rohr, D Rohrich, D Romita, R Ronchetti, F Rosnet, P Rossegger, S Rossi, A Roy, P Roy, C Montero, AJR Rui, R Russo, R Ryabinkin, E Rybicki, A Sadovsky, S Safarik, K Sahoo, R Sahu, PK Saini, J Sakaguchi, H Sakai, S Sakata, D Salgado, CA Salzwedel, J Sambyal, S Samsonov, V Castro, XS Sandor, L Sandoval, A Sano, M Santagati, G Santoro, R Sarkamo, J Sarkar, D Scapparone, E Scarlassara, F Scharenberg, RP Schiaua, C Schicker, R Schmidt, HR Schmidt, C Schuchmann, S Schukraft, J Schuster, T Schutz, Y Schwarz, K Schweda, K Scioli, G Scomparin, E Scott, R Scott, PA Segato, G Selyuzhenkov, I Senyukov, S Seo, J Serci, S Serradilla, E Sevcenco, A Shabetai, A Shabratova, G Shahoyan, R Sharma, S Sharma, N Rohni, S Shigaki, K Shtejer, K Sibiriak, Y Sicking, E Siddhanta, S Siemiarczuk, T Silvermyr, D Silvestre, C Simatovic, G Simonetti, G Singaraju, R Singh, R Singha, S Singhal, V Sinha, T Sinha, BC Sitar, B Sitta, M Skaali, TB Skjerdal, K Smakal, R Smirnov, N Snellings, RJM Sogaard, C Soltz, R Song, M Song, J Soos, C Soramel, F Sputowska, I Spyropoulou-Stassinaki, M Srivastava, BK Stachel, J Stan, I Stefanek, G Steinpreis, M Stenlund, E Steyn, G Stiller, JH Stocco, D Stolpovskiy, M Strmen, P Suaide, AAP Vasquez, MAS Sugitate, T Suire, C Suleymanov, M Sultanov, R Sumbera, M Susa, T Symons, TJM de Toledo, AS Szarka, I Szczepankiewicz, A Szymanski, M Takahashi, J Tangaro, MA Takaki, JDT Peloni, AT Martinez, AT Tauro, A Munoz, GT Telesca, A Ter Minasyan, A Terrevoli, C Thader, J Thomas, D Tieulent, R Timmins, AR Tlusty, D Toia, A Torii, H Toscano, L Trubnikov, V Truesdale, D Trzaska, WH Tsuji, T Tumkin, A Turrisi, R Tveter, TS Ulery, J Ullaland, K Ulrich, J Uras, A Urciuoli, GM Usai, GL Vajzer, M Vala, M Palomo, LV Vallero, S Vyvre, PV Van Hoorne, JW van Leeuwen, M Vannucci, L Vargas, A Varma, R Vasileiou, M Vasiliev, A Vechernin, V Veldhoen, M Venaruzzo, M Vercellin, E Vergara, S Vernet, R Verweij, M Vickovic, L Viesti, G Viinikainen, J Vilakazi, Z Baillie, OV Vinogradov, Y Vinogradov, L Vinogradov, A Virgili, T Viyogi, YP Vodopyanov, A Volkl, MA Voloshin, S Voloshin, K Volpe, G von Haller, B Vorobyev, I Vranic, D Vrlakova, J Vulpescu, B Vyushin, A Wagner, V Wagner, B Wan, R Wang, Y Wang, Y Wang, M Watanabe, K Weber, M Wessels, JP Westerhoff, U Wiechula, J Wikne, J Wilde, M Wilk, G Williams, MCS Windelband, B Yaldo, CG Yamaguchi, Y Yang, S Yang, P Yang, H Yasnopolskiy, S Yi, J Yin, Z Yoo, IK Yoon, J Yuan, X Yushmanov, I Zaccolo, V Zach, C Zampolli, C Zaporozhets, S Zarochentsev, A Zavada, P Zaviyalov, N Zbroszczyk, H Zelnicek, P Zgura, IS Zhalov, M Zhang, Y Zhang, H Zhang, X Zhou, D Zhou, Y Zhou, F Zhu, H Zhu, J Zhu, X Zhu, J Zichichi, A Zimmermann, A Zinovjev, G Zoccarato, Y Zynovyev, M Zyzak, M |
| Abstract: | The ALICE Collaboration at the LHC has measured the J/psi and psi' photoproduction at mid-rapidity in ultra-peripheral Pb-Pb collisions at root s(NN) = 2.76 TeV. The charmonium is identified via its leptonic decay for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 23 mu b(-1). The cross section for coherent and incoherent J/psi production in the rapidity interval -0.9 < y < 0.9, are d sigma(coh)(J/psi)/dy = 2.38(-0.24)(+0.34)(sta + sys) mb and d sigma(inc)(J/psi)/dy = 0.98(-0.17)(+0.19)(sta + sys) mb and , respectively. The results are compared to theoretical models for J/psi production and the coherent cross section is found to be in good agreement with those models incorporating moderate nuclear gluon shadowing at Bjorken-x around 10(-3), such as EPS09 parametrization. In addition the cross section for the process gamma gamma -> e(+)e(-) has been measured and found to be in agreement with models implementing QED at leading order. |
| Country: | EUA |
| Editor: | Springer |
| Citation: | European Physical Journal C. Springer, v. 73, n. 11, 2013. |
| Rights: | fechado |
| Identifier DOI: | 10.1140/epjc/s10052-013-2617-1 |
| Date Issue: | 2013 |
| Appears in Collections: | Unicamp - Artigos e Outros Documentos |
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