Longitudinal asymmetry and its effect on pseudorapidity distributions in Pb-Pb collisions at root s(NN)=2.76 TeV
Acharya, S. and Adam, J. and Adamova, D. and Adolfsson, J. and Aggarwal,
M. M. and Rinella, G. Aglieri and Agnello, M. and Agrawal, N. and
Ahammed, Z. and Ahmad, N. and Ahn, S. U. and Aiola, S. and Akkindinov, A.
and Al-Turany, M. and Alam, S. N. and Alba, J. L. B. and Albuquerque, D.
S. D. and Aleksandrov, D. and Alessandro, B. and Molina, R. Alfaro and
Alici, A. and Alkin, A. and Alme, J. and Alt, T. and Altenkamper, L. and
Altsybeev, I. and Alves Garcia Prado, C. and Andrei, C. and Andreou, D.
and Andrews, H. A. and Andronic, A. and Anguelov, V. and Anson, C. and
Anticic, T. and Antinori, F. and Antonioli, R. and Anwar, R. and
Aphecetche, L. and Appelshaeuser, H. and Arcelli, S. and Arnaldi, R. and
Arnold, O. W. and Arsene, I. C. and Arslandok, M. and Audurier, B. and
Augustinus, A. and Averbeck, R. and Azmi, M. D. and Badala, A. and Baek,
Y. W. and Bagnasco, S. and Bailhache, R. and Bala, R. and Baldisseri, A.
and Ball, M. and Baral, R. C. and Barbano, A. M. and Barbera, R. and
Barile, F. and Barioglio, L. and Barnafoldi, G. G. and Barnby, L. S. and
Barret, V. and Bartalini, R. and Barth, K. and Bartsch, E. and Basile,
M. and Bastidni, N. and Basu, S. and Batigne, G. and Batyunya, B. and
Batzing, Rc. and Bearden, I. G. and Beck, H. and Bedda, C. and Behera,
N. K. and Belikov, I. and Bellini, F. and Bello Martinez, H. and
Bellwied, R. and Beltran, L. G. E. and Belyaev, V. and Bencedi, G. and
Beole, S. and Bercuci, A. and Berdnikov, Y. and Berenyi, D. and Bertens,
R. A. and Berzano, D. and Betev, L. and Bhasin, A. and Bhat, I. R. and
Bhati, A. K. and Bhattacharjee, B. and Bhom, J. and Bianchi, A. and
Bianchi, L. and Bianchi, N. and Bianchin, C. and Bielcik, J. and
Bielcikova, J. and Bilandzic, A. and Biro, G. and Biswas, R. and Biswas,
S. and Blair, J. T. and Blau, D. and Blume, C. and Boca, G. and Bock, F.
and Bogdanov, A. and Boldizsar, L. and Bombara, M. and Bonomi, G. and
Bonora, M. and Book, J. and Bore, H. and Borissov, A. and Borri, M. and
Botta, E. and Bourjau, C. and Bratrud, L. and Braun-Munzinger, R. and
Bregant, M. and Broker, T. A. and Broz, M. and Brucken, E. J. and Bruna,
E. and Bruno, G. E. and Budnikov, D. and Buesching, H. and Bufalino, S.
and Buhler, R. and Buncic, R. and Busch, O. and Buthelezi, Z. and Butt,
J. B. and Buxton, J. T. and Cabala, J. and Caffarri, D. and Caines, H.
and Caliva, A. and Calvo Villar, E. and Camerini, R. and Capon, A. A.
and Carena, F. and Carena, W. and Carnesecchi, F. and Castellanos, J.
Castillo and Castro, A. J. and Casula, E. A. R. and Ceballos Sanchez, C.
and Cerello, R. and Chandra, S. and Chang, B. and Chapeland, S. and
Chartier, M. and Chattopadhyay, S. and Chattopadhyay, S. and Chauvin, A.
and Cheshkov, C. and Cheynis, B. and Barroso, V. Chibante and
Chinellato, D. D. and Cho, S. and Chochula, R. and Chojnacki, M. and
Choudhury, S. and Chowdhury, T. and Christakoglou, R. and Christensen,
C. H. and Christiansen, R. and Chujo, T. and Chung, S. U. and Cicalo, C.
and Cifarelli, L. and Cindolo, F. and Cleymans, J. and Colamaria, F. and
Colella, D. and Collu, A. and Colocci, M. and Concas, M. and Balbastre,
G. Conesa and del Valle, Z. Conesa and Connors, M. E. and Contreras, J.
G. and Cormier, T. M. and Morales, Y. Corrales and Maldonado, I. Cortes
and Cortese, R. and Cosentino, M. R. and Costa, F. and Costanza, S. and
Crkovska, J. and Crochet, R. and Cuautle, E. and Cunqueiro, L. and
Dahms, T. and Dainese, A. and Danisch, M. C. and Danu, A. and Das, D.
and Das, I. and Das, S. and Dash, A. and Dash, S. and De, S. and De
Caro, A. and de Cataldo, G. and de Conti, C. and de Cuveland, J. and De
Falco, A. and De Gruttola, D. and De Marco, N. and De Pasquale, S. and
De Souza, R. D. and Degenhardt, H. F. and Deisting, A. and Deloff, A.
and Deplano, C. and Dhankher, R. and Di Bari, D. and Di Mauro, A. and Di
Nezza, R. and Di Ruzza, B. and Dietel, T. and Dillenseger, R. and Divia,
R. and Djuvsland, O. and Dobrin, A. and Gimenez, D. Domenicis and
Donigus, B. and Dordic, O. and Doremalen, L. V. R. and Dubey, A. K. and
Dubla, A. and Ducroux, L. and Duggalgs, A. K. and Dukhishyam, M. and
Dupieux, R. and Ehlers, R. J. and Elia, D. and Endress, E. and Engel, H.
and Epple, E. and Erazmus, B. and Erhardt, F. and Espagnon, B. and
Esumi, S. and Eulisse, G. and Eum, J. and Evans, D. and Evdokimov, S.
and Fabbietti, L. and Faivre, J. and Fantoni, A. and Fasel, M. and
Feldkamp, L. and Feliciello, A. and Feofilov, G. and Tellez, A.
Fernandez and Ferretti, A. and Festanti, A. and Feuillard, V. J. G. and
Figiel, J. and Figueredo, M. A. S. and Filchagin, S. and Finogeev, D.
and Fionda, F. M. and Floris, M. and Foertsch, S. and Foka, R. and
Fokin, S. and Fragiacomo, E. and Francescon, A. and Francisco, A. and
Frankenfeld, U. and Fronze, G. G. and Fuchs, U. and Furget, C. and Furs,
A. and Girard, M. Fusco and Gaardhoje, J. J. and Gagliardi, M. and Gago,
A. M. and Gajdosova, K. and Gallio, M. and Galvan, C. D. and Ganoti, R.
and Garabatos, C. and Garcia-Solis, E. and Garg, K. and Gargiulo, C. and
Gasik, R. and Gauger, E. F. and Ducati, M. B. Gay and Germain, M. and
Ghosh, J. and Ghosh, R. and Ghosh, S. K. and Gianotti, R. and
Giubellino, R. and Giubilato, R. and Gladysz-Dziadus, E. and Glassel, R.
and Cora, D. M. Gomez and Ramirez, A. Gomez and Gonzalez, A. S. and
Gonzalez-Zamora, R. and Gorbunov, S. and Gorlich, L. and Gotovac, S. and
Grabski, V. and Graczykowski, L. K. and Graham, K. L. and Greiner, L.
and Grelli, A. and Grigoras, C. and Grigoriev, V. and Grigoryan, A. and
Grigoryan, S. and Gronefeld, J. M. and Grosa, F. and Grosse-Oetringhaus,
J. F. and Grosso, R. and Gruber, L. and Guber, F. and Guernane, R. and
Guerzoni, B. and Gulbrandsen, K. and Gunji, T. and Gupta, A. and Guptaw,
R. and Guzman, I. B. and Haake, R. and Hadjidakis, C. and Hamagaki, H.
and Hamar, G. and Hamon, J. C. and Hague, M. R. and Harris, J. W. and
Harton, A. and Hassan, H. and Hatzifotiadou, D. and Hayashi, S. and
Heckel, S. T. and Hellbar, E. and Helstrup, H. and Herghelegiu, A. and
Hernandez, E. G. and Corral, G. Herrera and Herrmann, F. and Hess, B. A.
and Hetland, K. F. and Hillemanns, H. and Hills, C. and Hippolyte, B.
and Hladky, J. and Hohlweger, B. and Horak, D. and Hornung, S. and
Hosokawa, R. and Hristov, R. and Hughes, C. and Humanic, T. J. and
Hussain, N. and Hussain, T. and Hutter, D. and Hwang, D. S. and Buitron,
S. A. Iga and Ilkaev, R. and Inaba, M. and Ippolitov, M. and Irfan, M.
and Islam, M. S. and Ivanov, M. and Ivanov, V. and Lzucheev, V. and
Jacak, B. and Jacazio, N. and Jacobs, P. M. and Jadhav, M. B. and
Jadlovsky, J. and Jaelani, S. and Jahnke, C. and Jakubowska, M. J. and
Janik, M. A. and Jayarathna, P. H. S. Y. and Jena, C. and Jena, S. and
Jercic, M. and Bustamante, R. T. Jimenez and Jones, P. G. and Jusko, A.
and Kalinak, P. and Kalweit, A. and Kang, J. H. and Kaplin, V. and Kar,
S. and Uysal, A. Karasu and Karavichev, O. and Karavicheva, T. and
Karayan, L. and Karczmarczyk, R. and Karpechev, E. and Kebschull, U. and
Keidel, R. and Keijdener, D. L. D. and Kei, M. and Ketzer, B. and
Khabanova, Z. and Khan, R. and Khan, S. A. and Khanzadeev, A. and
Kharlov, Y. and Khatun, A. and Khuntia, A. and Kielbowicz, M. M. and
Kileng, B. and Kim, B. and Kim, D. and Kim, D. J. and Kim, H. and Kim,
J. S. and Kim, J. and Kim, M. and Kim, M. and Kim, S. and Kim, T. and
Kirsch, S. and Kise, I. and Kiselev, S. and Kisiel, A. and Kiss, G. and
Klay, J. L. and Klein, C. and Klein, J. and Klein-Bosing, C. and Klewin,
S. and Kluge, A. and Knichel, M. L. and Knospe, A. G. and Kobdaj, C. and
Kofarago, M. and Kohler, M. K. and Kollegger, T. and Kondratiev, V. and
Kondratyeva, N. and Kondratyuk, E. and Konevskikh, A. and Konyushikhin,
M. and Kopcik, M. and Kourl, M. and Kouzinopoulos, C. and Kovalenko, O.
and Kovalenko, V. and Kowalski, M. and Meethaleveedu, G. Koyithatta and
Kralik, I. and Kravakova, A. and Kreis, L. and Krivda, M. and Krizek, F.
and Kryshen, E. and Krzewicki, M. and Kubera, A. M. and Ktkera, V. and
Kuhn, C. and Kuijer, P. G. and Kumar, A. and Kumar, J. and Kumar, L. and
Kumar, S. and Kundu, S. and Kurashvili, R. and Kurepin, A. and Kurepin,
A. B. and Kuryakin, A. and Kushpi, S. and Kweon, M. J. and Kwon, Y. and
La Pointe, S. L. and La Rocca, R. and Fernandes, C. Lagana and Lai, Y.
S. and Lakomov, I. and Langoy, R. and Lapidus, K. and Lara, C. and
Lardeux, A. and Lattuca, A. and Laudi, E. and Lavicka, R. and Lea, R.
and Leardini, L. and Lee, S. and Lehas, F. and Lehner, S. and Lehrbach,
J. and Lemmon, R. C. and Lend, V. and Leogrande, E. and Leon, I. and
Levai, R. and Li, X. and Lien, J. and Lietava, R. and Lim, B. and
Lindal, S. and Lindenstruth, V. and Lindsay, S. W. and Lippmann, C. and
Lisa, M. A. and Litichevskyi, V. and Llope, W. J. and Lodato, D. F. and
Loenne, Ri. and Loginov, V. and Loizides, C. and Loncar, R. and Lopez,
X. and Torres, E. Lopez and Lowe, A. and Luettig, R. and Luhder, J. R.
and Lunardon, M. and Luparello, G. and Lupi, M. and Lutz, T. H. and
Maevskaya, A. and Mager, M. and Mahajan, S. and Mahmood, S. M. and
Maire, A. and Majka, R. D. and Malaev, M. and Malinina, L. and
Mal'Kevich, D. and Malzacher, R. and Mamonovms, A. and Manko, V. and
Mans, F. and Manzari, V. and Mao, Y. and Marchisone, M. and Mares, J.
and Margagliotti, G. V. and Margotti, A. and Margutti, J. and Marin, A.
and Markert, C. and Marquard, M. and Martin, N. A. and Martinengo, R.
and Martinez, J. A. L. and Martinez, M. I. and Garcia, G. Martinez and
Pedreira, M. Martinez and Masciocchil, S. and Masera, M. and Masoni, A.
and Masson, E. and Mastroserio, A. and Mathis, A. M. and Matuoka, P. F.
T. and Matyja, A. and Mayer, C. and Mazer, J. and Mazzilli, M. and
Mazzoni, M. A. and Meddi, F. and Melikyan, Y. and Menchaca-Rocha, A. and
Meninno, E. and Perez, J. Mercado and Meres, M. and Mhlanga, S. and
Miake, Y. and Mieskolainen, M. M. and Mihaylov, D. L. and Mikhaylov, K.
and Milosevic, J. and Mischke, A. and Mishra, A. N. and Miskowiec, D.
and Mitra, J. and Mitu, C. M. and Mohammadi, N. and Mohanty, B. and
Khan, M. Mohisin and De Godoy, D. A. Moreira and Moreno, L. A. P. and
Moretto, S. and Morreale, A. and Morsch, A. and Muccifora, V. and
Mudnic, E. and Miihlheim, D. and Muhuri, S. and Mukherjee, M. and
Mulligan, J. D. and Munhoz, M. G. and Munning, K. and Munzer, R. H. and
Murakami, H. and Murray, S. and Musa, L. and Musinsky, J. and Myers, C.
J. and Myrcha, J. W. and Nag, D. and Naik, B. and Nair, R. and Nandi, B.
K. and Nania, R. and Nappi, E. and Narayan, A. and Naru, M. U. and da
Luz, H. Natal and Nattrass, C. and Navarro, S. R. and Nayak, K. and
Nayak, R. and Nayak, T. K. and Nazarenko, S. and Nedosekin, A. and De
Oliveira, R. A. Negrao and Nellen, L. and Nesbo, S. V. and Ng, F. and
Nicassio, M. and Niculescu, M. and Niedziela, J. and Nielsen, B. S. and
Nikolaev, S. and Nikulin, S. and Nikulin, V. and Noferini, F. and
Nomokonov, R. and Nooren, G. and Noris, J. C. C. and Norman, J. and
Nyanin, A. and Nystrand, J. and Oeschler, H. and Oh, S. and Ohlson, A.
and Okubo, T. and Olah, L. and Oleniacz, J. and Da Silva, A. C. Oliveira
and Oliver, M. H. and Onderwaater, J. and Oppedisano, C. and Orava, R.
and Oravec, M. and Velasquez, A. Ortiz and Oskarsson, A. and Otwinowski,
J. and Oyama, K. and Pachmayer, Y. and Pacik, V. and Pagano, D. and
Pagano, R. and Paic, G. and Palni, R. and Pan, J. and Pandey, A. K. and
Panebianco, S. and Papikyan, V. and Pappalardo, G. S. and Pareek, R. and
Park, J. and Parmar, S. and Passfeld, A. and Pathak, S. P. and Patra, R.
N. and Paul, B. and Pei, H. and Peitzmann, T. and Peng, X. and Pereira,
L. G. and Da Costa, H. Pereira and Peresunko, D. and Lezama, E. Perez
and Peskov, V. and Pestov, Y. and Petracek, V. and Petrov, V. and
Petrovici, M. and Pena, C. and Pezzi, R. P. and Piano, S. and Pikna, M.
and Pillot, R. and Pimentel, L. O. D. L. and Pinazza, O. and Pinsky, L.
and Piyarathna, D. B. and Ploskon, M. and Planinic, M. and Pliquett, F.
and Pluta, J. and Pochybova, S. and Podesta-Lerma, P. L. M. and
Poghosyang, M. G. and Polichtchouk, B. and Poljak, N. and Poonsawat, W.
and Pop, A. and Poppenbore, H. and Porteboeuf-Houssais, S. and
Pozdniakov, V. and Prasad, S. K. and Preghenella, R. and Prino, F. and
Pruneau, C. A. and Pshenichnov, I. and Puccio, M. and Puddu, G. and
Pujahari, R. and Punin, V. and Putschke, J. and Raha, S. and Rajput, S.
and Rak, J. and Rakotozafindrabe, A. and Ramello, L. and Rami, F. and
Rana, D. B. and Raniwala, R. and Raniwala, S. and Rasanen, S. S. and
Rascanu, B. T. and Rathee, D. and Ratza, V. and Ravasenga, I. and Read,
K. F. and Redlich, K. and Rehman, A. and Reichelt, R. and Reidt, F. and
Ren, X. and Renfordt, R. and Reolon, A. R. and Reshetin, A. and Reygers,
K. and Riabov, V. and Ricci, R. A. and Richert, T. and Richter, M. and
Riedler, R. and Riegler, W. and Riggi, F. and Ristea, C. and Cahuantzi,
M. Rodriguez and Roed, K. and Rogochaya, E. and Rohr, D. and Rohrich, D.
and Rokita, Rs. and Ronchetti, F. and Rosas, E. D. and Rosnet, R. and
Rossi, A. and Rotondi, A. and Roukoutakis, F. and Roy, A. and Roy, C.
and Roy, R. and Rueda, O. V. and Rui, R. and Rumyantsev, B. and
Rustamov, A. and Ryabinkin, E. and Ryabov, Y. and Rybicki, A. and
Saarinen, S. and Sadhu, S. and Sadovsky, S. and Safarik, K. and Saha, S.
K. and Sahlmuller, B. and Sahoo, B. and Sahoo, R. and Sahoo, R. and
Sahoo, S. and Sahu, P. K. and Saini, J. and Sakai, S. and Saleh, M. A.
and Salzwede, J. and Sambyalm, S. and Samsonov, V. and Sandoval, A. and
Sarkar, D. and Sarkar, N. and Sarma, R. and Sas, M. H. P. and
Scapparone, E. and Scarlassara, F. and Schaefer, B. and Scharenberg, R.
P. and Scheid, H. S. and Schiaua, C. and Schicker, R. and Schmidt, C.
and Schmidt, H. R. and Schmidt, M. O. and Schmidt, M. and Schmidt, N. V.
and Schukraft, J. and Schutz, Y. and Schwarz, K. and Schweda, K. and
Scioli, G. and Scomparin, E. and Sefcik, M. and Seger, J. E. and
Sekiguchi, Y. and Sekihata, D. and Selyuzhenkov, I. and Senosi, K. and
Senyukov, S. and Serradilla, E. and Sett, R. and Sevcenco, A. and
Shabanov, A. and Shabetai, A. and Shahoyan, R. and Shaikh, W. and
Shangaraev, A. and Sharma, A. and Sharma, A. and Sharma, M. and Sharma,
M. and Sharma, N. and Sheikh, A. I. and Shigaki, K. and Shou, Q. and
Shtejer, K. and Sibiriak, Y. and Siddhanta, S. and Sielewicz, K. M. and
Siemiarczuk, T. and Silaeva, S. and Silvermyr, D. and Silvestre, C. and
Simatovic, G. and Simonetti, G. and Singaraju, R. and Singh, R. and
Singhal, V. and Sinha, T. and Sitar, B. and Sitta, M. and Skaali, T. B.
and Slupecki, M. and Smirnov, N. and Snellings, R. J. M. and Snellman,
T. W. and Song, J. and Song, M. and Soramel, F. and Sorensen, S. and
Sozzi, F. and Spiriti, E. and Sputowska, I. and Srivastava, B. K. and
Stachel, J. and Stan, I. and Stankus, P. and Stenlund, E. and Stocco, D.
and Storetvedt, M. M. and Strmen, R. and Suaide, A. A. P. and Sugitate,
T. and Suire, C. and Suleymanov, M. and Stlijic, M. and Sultanov, R. and
Sumbera, M. and Sumowidagdo, S. and Suzuki, K. and Swain, S. and Szabo,
A. and Szarka, I. and Tabassam, U. and Takahashi, J. and Tambave, G. J.
and Tanaka, N. and Tarhini, M. and Tariq, M. and Tarzila, M. G. and
Tauro, A. and Munoz, G. Tejeda and Telesca, A. and Terasaki, K. and
Terrevoli, C. and Teyssier, B. and Thakur, D. and Thakur, S. and Thomas,
D. and Thoresen, F. and Tieulent, R. and Tikhonov, A. and Timmins, A. R.
and Toia, A. and Torres, S. R. and Tripathy, S. and Trogolo, S. and
Trombetta, G. and Tropp, L. and Trubnikov, V. and Trzaska, W. H. and
Trzeciak, B. A. and Tsuji, T. and Tumkin, A. and Turrisi, R. and Tveter,
T. S. and Ullaland, K. and Umaka, E. N. and Uras, A. and Usai, G. L. and
Utrobicic, A. and Vala, M. and Van Der Maare, J. J. and Van Hoorne, J.
W. and van Leeuwen, M. and Vanat, T. and Vyvre, R. Vande and Varga, D.
and Vargas, A. and Vargyas, M. and Varma, R. and Vasileiou, M. and
Vasiliev, A. and Vauthier, A. and Doce, O. Vazquez and Vechernin, V. and
Veen, A. M. and Velure, A. and Vercellin, E. and Limon, S. Vergara and
Vernet, R. and Vertesi, R. and Vickovic, L. and Vigolo, S. and
Viinikainen, J. and Vilakazi, Z. and Baillie, O. Villalobos and Tello,
A. Villatoro and Vinogradov, A. and Vinogradov, L. and Virgili, T. and
Vislavicius, V. and Vodopyanov, A. and Volkl, M. A. and Voloshin, K. and
Voloshin, S. A. and Volpe, G. and von Haller, B. and Vorobyev, I. and
Voscek, D. and Vranic, D. and Vrlakova, J. and Wagner, B. and Wang, H.
and Wang, M. and Watanabe, D. and Watanabe, Y. and Weber, M. and Weber,
S. G. and Weiser, D. F. and Wenzel, S. C. and Wessels, J. P. and
Westerhoff, U. and Whitehead, A. M. and Wiechula, J. and Wikne, J. and
Wilk, G. and Wilkinson, J. and Willems, G. A. and Williams, M. C. S. and
Willsher, E. and Windelband, B. and Witt, W. E. and Yalcin, S. and
Yamakawa, K. and Yang, R. and Yano, S. and Yin, Z. and Yokoyama, H. and
Yoo, I. -K. and Yoon, J. H. and Yurchenko, V. and Zaccolo, V. and Zaman,
A. and Zampolli, C. and Zanoli, H. J. C. and Zardoshti, N. and
Zarochentsev, A. and Zavada, R. and Zaviyalov, N. and Zbroszczyk, H. and
Zhalov, M. and Zhang, H. and Zhang, X. and Zhang, Y. and Zhang, C. and
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Abstract
First results on the longitudinal asymmetry and its effect on the
pseudorapidity distributions in Pb-Pb collisions at root s(NN) = 2.76
TeV at the Large Hadron Collider are obtained with the ALICE detector.
The longitudinal asymmetry arises because of an unequal number of
participating nucleons from the two colliding nuclei, and is estimated
for each event by measuring the energy in the forward
neutron-Zero-Degree-Calorimeters (ZNs). The effect of the longitudinal
asymmetry is measured on the psseudorapidity distributions of charged
particles in the regions vertical bar eta vertical bar < 0.9, 2.8 < eta
< 5.1 and -3.7 < eta < -1.7 by taking the ratio of the pseudorapidity
distributions from events corresponding to different regions of
asymmetry. The coefficients of a polynomial fit to the ratio
characterise the effect of the asymmetry. A Monte Carlo simulation using
a Glauber model for the colliding nuclei is tuned to reproduce the
spectrum in the ZNs and provides a relation between the measurable
longitudinal asymmetry and the shift in the rapidity (y(0)) of the
participant zone formed by the unequal number of participating nucleons.
The dependence of the coefficient of the linear term in the polynomial
expansion, c(1), on the mean value of y(0) is investigated. (C) 2018 The
Author(s). Published by Elsevier B.V.... Show more Show less