Elliptic flow of electrons from heavy-flavour hadron decays at mid-rapidity in Pb-Pb collisions at root s(NN)=2.76 TeV
Adam, J. and Adamova, D. and Aggarwal, M. M. and Rinella, G. Aglieri and
Agnello, M. and Agrawal, N. and Ahammed, Z. and Ahmad, S. and Ahn, S. U.
and Aiola, S. and Akindinov, A. and Alam, S. N. and Allbuquerque, D. S.
D. and Aleksandrov, D. and Alessandro, B. and Alexandre, D. and Alfaro
Molina, R. and Alici, A. and Alkin, A. and Alme, J. and Alt, T. and
Altinpinar, S. and Altsybeev, I. and Alves Garcia Prado, C. and Andrei,
C. and Andronic, A. and Anguelov, V. and Anticic, T. and Antinori, F.
and Antonioli, P. 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 Balasubramanian, S. and Baldisseri, A. and Baral, R. C. and
Barbano, A. M. and Barbera, R. and Barile, F. and Barnafoldi, G. G. and
Barnby, L. S. and Barret, V. and Bartalini, P. and Barth, K. and Bartke,
J. and Bartsch, E. and Basile, M. and Bastid, N. and Basu, S. and
Bathen, B. and Batigne, G. and Camejo, A. Batista and Batyunya, B. and
Batzing, P. C. 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 Belmont, R. and Belmont-Moreno, E. and Beltran, L. G.
E. and Belyaev, V. and Bencedi, G. and Beole, S. and Berceanu, I. 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, 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 Bjelogrlic, S. and Blair,
J. T. and Blau, D. and Blume, C. and Bock, F. and Bogdanov, A. and
Boggild, H. and Boldizsar, L. and Bombara, M. and Bonora, M. and Book,
J. and Borel, H. and Borissov, A. and Borri, M. and Bossu, F. and Botta,
E. and Bourjau, C. and Braun-Munzinger, P. and Bregant, M. and Breitner,
T. and Broker, T. A. and Browning, 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 Buncic, P. and Busch, O. and Buthelezi, Z. and Butt, J.
B. and Buxton, J. T. and Cabala, J. and Caffarri, D. and Cai, X. and
Caines, H. and Diaz, L. Calero and Caliva, A. and Calvo Villar, E. and
Camerini, P. 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 Cepila, J. and Cerello, P. and Cerkala, J. and
Chang, B. and Chapeland, S. and Chartier, M. and Charvet, J. L. and
Chattopadhyay, S. and Chattopadhyay, S. and Chauvin, A. and Chelnokov,
V. and Cherney, M. and Cheshkov, C. and Cheynis, B. and Barroso, V.
Chibante and Chinellato, D. D. and Cho, S. and Chochula, P. and Choi, K.
and Chojnacki, M. and Choudhury, S. and Christakoglou, P. and
Christensen, C. H. and Christiansen, P. 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
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 Cortes
Maldonado, I. and Cortese, P. and Cosentino, M. R. and Costa, F. and
Crkovska, J. and Crochet, P. and Cruz Albino, 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 Deisting, A. and Deloff, A. and
Denes, E. and Deplano, C. and Dhankher, P. and Di Bari, D. and Di Mauro,
A. and Di Nezza, P. and Di Ruzza, B. and Diaz Corchero, M. A. and
Dietel, T. and Dillenseger, P. and Divia, R. and Djuvsland, O. and
Dobrin, A. and Domenicis Gimenez, D. and Doenigus, B. and Dordic, O. and
Drozhzhova, T. and Dubey, A. K. and Dubla, A. and Ducroux, L. and
Dupieux, P. and Ehlers, R. J. and Elia, D. and Endress, E. and Engel, H.
and Epple, E. and Erazmus, B. and Erdemir, I. and Erhardt, F. and
Espagnon, B. and Estienne, M. and Esumi, S. and Eum, J. and Evans, D.
and Evdokimov, S. and Eyyubova, G. and Fabbietti, L. and Fabris, D. and
Faivre, J. and Fantoni, A. and Fasel, M. and Feldkamp, L. and
Feliciello, A. and Feofilov, G. and Ferencei, J. and Fernandez Tellez,
A. and Ferreiro, E. G. 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 Fiore, E. M. and Fleck, M. G. and
Floris, M. and Foertsch, S. and Foka, P. 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 Gangadharan, D. R. and Ganoti, P. and
Gao, C. and Garabatos, C. and Garcia-Solis, E. and Gargiulo, C. and
Gasik, P. and Gauger, E. F. and Germain, M. and Gheata, M. and Ghosh, P.
and Ghosh, S. K. and Gianotti, P. and Giubellino, P. and Giubilato, P.
and Gladysz-Dziadus, E. and Glaessel, P. and Gomez Coral, D. M. and
Ramirez, A. Gomez and Gonzalez, A. S. and Gonzalez, V. and
Gonzalez-Zamora, P. and Gorbunov, S. and Gorlich, L. and Gotovac, S. and
Grabski, V. and Grachov, O. A. and Graczykowski, L. K. and Graham, K. L.
and Grelli, A. and Grigoras, A. and Grigoras, C. and Grigoriev, V. and
Grigoryan, A. and Grigoryan, S. and Grinyov, B. and Grion, N. and
Gronefeld, J. M. 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 Gupta, R. and Haake, R.
and Hadjidakis, C. and Haiduc, M. and Hamagaki, H. and Hamar, G. and
Hamon, J. C. and Harris, J. W. and Harton, A. and Hatzifotiadou, D. and
Hayashi, S. and Heckel, S. T. and Hellbaer, E. and Helstrup, H. and
Herghelegiu, A. and Herrera Corral, G. and Hess, B. A. and Hetland, K.
F. and Hillemanns, H. and Hippolyte, B. and Horak, D. and Hosokawa, R.
and Hristov, P. and Hughes, C. and Humanic, T. J. and Hussain, N. and
Hussain, T. and Hutter, D. and Hwang, D. S. and Ilkaev, R. and Inaba, M.
and Incani, E. and Ippolitov, M. and Irfan, M. and Isakov, V. and
Ivanov, M. and Ivanov, V. and Izucheev, V. and Jacak, B. and Jacazio, N.
and Jacobs, P. M. and Jadhav, M. B. and Jadlovska, S. and Jadlovsky, J.
and Jahnke, C. and Jakubowska, M. J. and Janik, M. A. and Jayarathna, P.
H. S. Y. and Jena, C. and Jena, S. 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 Karpechev, E. and Kebschull, U.
and Keidel, R. and Keijdener, D. L. D. and Keil, M. and Khan, M. Mohisin
and Khan, P. and Khan, S. A. and Khanzadeev, A. and Kharlov, Y. and
Kileng, B. and Kim, D. W. and Kim, D. J. and Kim, D. and Kim, H. and
Kim, J. S. and Kim, J. and Kim, M. and Kim, S. and Kim, T. and Kirsch,
S. and Kisel, I. and Kiselev, S. and Kisiel, A. and Kiss, G. and Klay,
J. L. and Klein, C. and Klein, J. and Klein-Boesing, C. and Klewin, S.
and Kluge, A. and Knichel, M. L. and Knospe, A. G. and Kobdaj, C. and
Kofarago, M. and Kollegger, T. and Kolojvari, A. and Kondratiev, V. and
Kondratyeva, N. and Kondratyuk, E. and Konevskikh, A. and Kopcik, M. and
Kour, M. and Kouzinopoulos, C. and Kovalenko, O. and Kovalenko, V. and
Kowalski, M. and Meethaleveedu, G. Koyithatta and Kralik, I. and
Kravcakova, A. and Krivda, M. and Krizek, F. and Kryshen, E. and
Krzewicki, M. and Kubera, A. M. and Kucera, V. and Kuhn, C. and Kuijer,
P. G. and Kumar, A. and Kumar, J. and Kumar, L. and Kumar, S. and
Kurashvili, P. and Kurepin, A. and Kurepin, A. B. and Kuryakin, A. and
Kweon, M. J. and Kwon, Y. and La Pointe, S. L. and La Rocca, P. and
Ladron de Guevara, P. and Lagana Fernandes, C. and Lakomov, I. and
Langoy, R. and Lapidus, K. and Lara, C. and Lardeux, A. and Lattuca, A.
and Laudi, E. and Lea, R. and Leardini, L. and Lee, S. and Lehas, F. and
Lehner, S. and Lemmon, R. C. and Lenti, V. and Leogrande, E. and Monzon,
I. Leon and Leon Vargas, H. and Leoncino, M. and Levai, P. and Li, S.
and Li, X. and Lien, J. and Lietava, R. and Lindal, S. and Lindenstruth,
V. and Lippmann, C. and Lisa, M. A. and Ljunggren, H. M. and Lodato, D.
F. and Loenne, P. I. and Loginov, V. and Loizides, C. and Lopez, X. and
Lopez Torres, E. and Lowe, A. and Luettig, P. 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 Maldonado Cervantes, I. and Malinina, L. and Mal'Kevich,
D. and Malzacher, P. and Mamonov, A. and Manko, V. and Manso, 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, P. and
Martinez, M. I. and Garcia, G. Martinez and Pedreira, M. Martinez and
Mas, A. and Masciocchi, S. and Masera, M. and Masoni, A. and
Mastroserio, A. and Matyja, A. and Mayer, C. and Mazer, J. and Mazzoni,
M. A. and Mcdonald, D. 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 Mikhaylov, K.
and Milano, L. 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 Molnar, L. and Montano Zetina, L. and Montes, E. 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 Muehlheim, D. and
Muhuri, S. and Mukherjee, M. and Mulligan, J. D. and Munhoz, M. G. and
Muenning, K. and Munzer, R. H. and Murakami, H. and Murray, S. and Musa,
L. and Musinsky, J. and Naik, B. and Nair, R. and Nandi, B. K. and
Nania, R. and Nappi, E. and Naru, M. U. and Natal da Luz, H. 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 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, P. and Nooren, G. and Noris,
J. C. C. and Norman, J. and Nyanin, A. and Nystrand, J. and Oeschler, H.
and Oh, S. and Oh, S. K. and Ohlson, A. and Okatan, A. and Okubo, T. and
Oleniacz, J. and Oliveira Da Silva, A. C. and Oliver, M. H. and
Onderwaater, J. and Oppedisano, C. and Orava, R. and Oravec, M. and
Ortiz Velasquez, A. and Oskarsson, A. and Otwinowski, J. and Oyama, K.
and Ozdemir, M. and Pachmayer, Y. and Pagano, D. and Pagano, P. and
Paic, G. and Pal, S. K. and Palni, P. and Pan, J. and Pandey, A. K. and
Papikyan, V. and Pappalardo, G. S. and Pareek, P. and Park, W. J. and
Parmar, S. and Passfeld, A. and Paticchio, V. and Patra, R. N. and Paul,
B. and Pei, H. and Peitzmann, T. and Peng, X. 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 Petta, C. and Piano,
S. and Pikna, M. and Pillot, P. and Pimentel, L. O. D. L. and Pinazza,
O. and Pinsky, L. and Piyarathna, D. B. and Ploskon, M. and Planinic, M.
and Pluta, J. and Pochybova, S. and Podesta-Lerma, P. L. M. and
Poghosyan, M. G. and Polichtchouk, B. and Poljak, N. and Poonsawat, W.
and Pop, A. and Poppenborg, H. and Porteboeuf-Houssais, S. and Porter,
J. and Pospisil, J. 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, P. and Punin, V. and Putschke, J. and Qvigstad, H. and
Rachevski, A. and Raha, S. and Rajput, S. and Rak, J. and
Rakotozafindrabe, A. and Ramello, L. and Rami, F. and Raniwala, R. and
Raniwala, S. and Rasanen, S. S. and Rascanu, B. T. and Rathee, D. and
Ravasenga, I. and Read, K. F. and Redlich, K. and Reed, R. J. and
Rehman, A. and Reichelt, P. 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, P. and
Riegler, W. and Riggi, F. and Ristea, C. and Cahuantzi, M. Rodriguez and
Manso, A. Rodriguez and Roed, K. and Rogochaya, E. and Rohr, D. and
Rohrich, D. and Ronchetti, F. and Ronflette, L. and Rosnet, P. and
Rossi, A. and Roukoutakis, F. and Roy, A. and Roy, C. and Roy, P. and
Rubio Montero, A. J. and Rui, R. and Russo, R. and Ryabinkin, E. and
Ryabov, Y. and Rybicki, A. and Saarinen, S. and Sadhu, S. and Sadovsky,
S. and Safarik, K. and Sahlmuller, B. and Sahoo, P. and Sahoo, R. and
Sahoo, S. and Sahu, P. K. and Saini, J. and Sakai, S. and Saleh, M. A.
and Salzwedel, J. and Sambyal, S. and Samsonov, V. and Sandor, L. and
Sandoval, A. and Sano, M. and Sarkar, D. and Sarkar, N. and Sarma, P.
and Scapparone, E. and Scarlassara, F. and Schiaua, C. and Schicker, R.
and Schmidt, C. and Schmidt, H. R. and Schmidt, M. and Schuchmann, S.
and Schukraft, J. and Schutz, Y. and Schwarz, K. and Schweda, K. and
Scioli, G. and Scomparin, E. and Scott, R. 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 Sevcenco, A. and Shabanov, A.
and Shabetai, A. and Shadura, O. and Shahoyan, R. and Shangaraev, 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 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 Song, Z. and
Soramel, F. and Sorensen, S. and Sozzi, F. and Spiriti, E. and
Sputowska, I. and Spyropoulou-Stassinaki, M. and Stachel, J. and Stan,
I. and Stankus, P. and Stenlund, E. and Steyn, G. and Stiller, J. H. and
Stocco, D. and Strmen, P. and Suaide, A. A. P. and Sugitate, T. and
Suire, C. and Suleymanov, M. and Suljic, M. and Sultanov, R. and
Sumbera, M. and Sumowidagdo, S. and Szabo, A. and Szarka, I. and
Szczepankiewicz, A. and Szymanski, M. 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 Thader, J. and
Thakur, D. and Thomas, D. and Tieulent, R. and Tikhonov, A. and Timmins,
A. R. and Toia, A. and Trogolo, S. and Trombetta, G. and Trubnikov, V.
and Trzaska, W. H. and Tsuji, T. and Tumkin, A. and Turrisi, R. and
Tveter, T. S. and Ullaland, K. and Uras, A. and Usai, G. L. and
Utrobicic, A. and Vala, M. and Palomo, L. Valencia and Van Der Maarel,
J. and Van Hoorne, J. W. and van Leeuwen, M. and Vanat, T. and Vande
Vyvre, P. 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 Veldhoen, M. and Velure, A. and
Vercellin, E. and Limon, S. Vergara and Vernet, R. and Vickovic, L. and
Viinikainen, J. and Vilakazi, Z. and Baillie, O. Villalobos and
Villatoro Tello, A. and Vinogradov, A. and Vinogradov, L. and Virgili,
T. and Vislavicius, V. and Viyogi, Y. P. and Vodopyanov, A. and Voelkl,
M. A. and Voloshin, K. and Voloshin, S. A. and Volpe, G. and von Haller,
B. and Vorobyev, I. and Vranic, D. and Vrlakova, J. and Vulpescu, B. and
Wagner, B. and Wagner, J. and Wang, H. and Wang, M. and Watanabe, D. and
Watanabe, Y. and Weber, M. and Weber, S. G. and Weiser, D. F. 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 Windelband, B. and Winn, M. and Yalcin, S. and
Yang, P. and Yano, S. and Yin, Z. and Yokoyama, H. and Yoo, I. -K. and
Yoon, J. H. and Yurchenko, V. and Zaborowska, A. and Zaccolo, V. and
Zaman, A. and Zampolli, C. and Zanoli, H. J. C. and Zaporozhets, S. and
Zardoshti, N. and Zarochentsev, A. and Zavada, P. and Zaviyalov, N. and
Zbroszczyk, H. and Zgura, I. S. and Zhalov, M. and Zhang, H. and Zhang,
X. and Zhang, Y. and Zhang, C. and Zhang, Z. and Zhao, C. and Zhigareva,
N. and Zhou, D. and Zhou, Y. and Zhou, Z. and Zhu, H. and Zhu, J. and
Zichichi, A. and Zimmermann, A. and Zimmermann, M. B. and Zinovjev, G.
and Zyzak, M. and ALICE Collaboration... Show more Show less
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Abstract
The elliptic flow of electrons from heavy-flavour hadron decays at
mid-rapidity (|y| < 0.7) is measured in Pb-Pb collisions at TeV with
ALICE at the LHC. The particle azimuthal distribution with respect to
the reaction plane can be parametrized with a Fourier expansion, where
the second coefficient (v (2)) represents the elliptic flow. The v (2)
coefficient of inclusive electrons is measured in three centrality
classes (0-10\%, 10-20\% and 20-40\%) with the event plane and the
scalar product metthods in the transverse momentum (p (T)) intervals
0.5-13 GeV/c and 0.5-8 GeV/c, respectively. After subtracting the
background, mainly from photon conversions and Dalitz decays of neutral
mesons, a positive v (2) of electrons from heavy-flavour hadron decays
is observed in all centrality classes, with a maximum significance of
5.9 sigma in the interval 2 < p (T) < 2.5 GeV/c in semi-central
collisions (20-40\%). The value of v (2) decreases towards more central
collisions at low and intermediate p (T) (0.5 < p (T) < 3 GeV/c). The v
(2) of electrons from heavy-flavour hadron decays at mid-rapidity is
found to be similar to the one of muons from heavy-flavour hadron decays
at forward rapidity (2.5 < y < 4). The results are described within
uncertainties by model calculations including substantial elastic
interactions of heavy quarks with an expanding strongly-interacting
medium.... Show more Show less