Observation of a first ντ candidate event in the OPERA experiment in the CNGS beam

N. Agafonova, A. Aleksandrov, O. Altinok, M. Ambrosio, A. Anokhina, S. Aoki, A. Ariga, T. Ariga, D. Autiero, A. Badertscher, A. Bagulya, A. Bendhabi, A. Bertolin, M. Besnier, D. Bick, V. Boyarkin, C. Bozza, T. Brugière, R. Brugnera, F. BrunetG. Brunetti, S. Buontempo, A. Cazes, L. Chaussard, M. Chernyavsky, V. Chiarella, N. Chon-Sen, A. Chukanov, R. Ciesielski, F. Dal Corso, N. D'Ambrosio, Y. Declais, P. del Amo Sanchez, G. De Lellis, M. De Serio, F. Di Capua, A. Di Crescenzo, D. Di Ferdinando, N. Di Marco, A. Di Giovanni, S. Dmitrievsky, M. Dracos, D. Duchesneau, S. Dusini, T. Dzhatdoev, J. Ebert, O. Egorov, R. Enikeev, A. Ereditato, L. S. Esposito, J. Favier, T. Ferber, R. A. Fini, D. Frekers, T. Fukuda, V. Galkin, A. Garfagnini, G. Giacomelli, M. Giorgini, J. Goldberg, C. Göllnitz, D. Golubkov, L. Goncharova, Y. Gornushkin, G. Grella, F. Grianti, A. M. Guler, C. Gustavino, C. Hagner, K. Hamada, T. Hara, M. Hierholzer, K. Hoshino, M. Ieva, H. Ishida, K. Ishiguro, K. Jakovcic, C. Jollet, F. Juget, M. Kamiscioglu, J. Kawada, M. Kazuyama, S. H. Kim, M. Kimura, N. Kitagawa, B. Klicek, J. Knuesel, K. Kodama, M. Komatsu, U. Kose, I. Kreslo, H. Kubota, C. Lazzaro, J. Lenkeit, I. Lippi, A. Ljubicic, A. Longhin, G. Lutter, A. Malgin, G. Mandrioli, K. Mannai, A. Marotta, J. Marteau, T. Matsuo, V. Matveev, N. Mauri, E. Medinaceli, F. Meisel, A. Meregaglia, P. Migliozzi, S. Mikado, S. Miyamoto, P. Monacelli, K. Morishima, U. Moser, M. T. Muciaccia, N. Naganawa, T. Naka, M. Nakamura, T. Nakano, Y. Nakatsuka, D. Naumov, V. Nikitina, K. Niwa, Y. Nonoyama, S. Ogawa, A. Olchevsky, T. Omura, G. Orlova, V. Osedlo, M. Paniccia, A. Paoloni, B. D. Park, I. G. Park, A. Pastore, L. Patrizii, E. Pennacchio, H. Pessard, V. Pilipenko, C. Pistillo, N. Polukhina, M. Pozzato, K. Pretzl, P. Publichenko, F. Pupilli, J. P. Repellin, R. Rescigno, T. Roganova, H. Rokujo, G. Romano, G. Rosa, I. Rostovtseva, A. Rubbia, A. Russo, V. Ryasny, O. Ryazhskaya, Y. Sakatani, O. Sato, Y. Sato, A. Schembri, W. Schmidt-Parzefall, H. Schroeder, L. Scotto Lavina, A. Sheshukov, H. Shibuya, S. Simone, M. Sioli, C. Sirignano, G. Sirri, J. S. Song, M. Spinetti, L. Stanco, N. Starkov, M. Stipcevic, T. Strauss, P. Strolin, K. Suzuki, S. Takahashi, M. Tenti, F. Terranova, I. Tezuka, V. Tioukov, P. Tolun, A. Trabelsi, T. Tran, S. Tufanli, P. Vilain, M. Vladimirov, L. Votano, J. L. Vuilleumier, G. Wilquet, B. Wonsak, V. Yakushev, C. S. Yoon, J. Yoshida, T. Yoshioka, Y. Zaitsev, S. Zemskova, A. Zghiche, R. Zimmermann

Research output: Contribution to journalArticle

198 Citations (Scopus)

Abstract

The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) has been designed to perform the first detection of neutrino oscillations in direct appearance mode through the study of the νμ→ντ channel. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors and it is placed in the high energy long-baseline CERN to LNGS beam (CNGS) 730 km away from the neutrino source. Runs with CNGS neutrinos were successfully carried out in 2008 and 2009. After a brief description of the beam, the experimental setup and the procedures used for the analysis of the neutrino events, we describe the topology and kinematics of a first candidate ?? charged-current event satisfying the kinematical selection criteria. The background calculations and their cross-check are explained in detail and the significance of the event is assessed.

Original languageEnglish
Pages (from-to)138-145
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume691
Issue number3
DOIs
Publication statusPublished - Jul 2010
Externally publishedYes

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neutrinos
detectors
emulsions
kinematics
topology
oscillations
electronics
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Observation of a first ντ candidate event in the OPERA experiment in the CNGS beam. / Agafonova, N.; Aleksandrov, A.; Altinok, O.; Ambrosio, M.; Anokhina, A.; Aoki, S.; Ariga, A.; Ariga, T.; Autiero, D.; Badertscher, A.; Bagulya, A.; Bendhabi, A.; Bertolin, A.; Besnier, M.; Bick, D.; Boyarkin, V.; Bozza, C.; Brugière, T.; Brugnera, R.; Brunet, F.; Brunetti, G.; Buontempo, S.; Cazes, A.; Chaussard, L.; Chernyavsky, M.; Chiarella, V.; Chon-Sen, N.; Chukanov, A.; Ciesielski, R.; Dal Corso, F.; D'Ambrosio, N.; Declais, Y.; del Amo Sanchez, P.; De Lellis, G.; De Serio, M.; Di Capua, F.; Di Crescenzo, A.; Di Ferdinando, D.; Di Marco, N.; Di Giovanni, A.; Dmitrievsky, S.; Dracos, M.; Duchesneau, D.; Dusini, S.; Dzhatdoev, T.; Ebert, J.; Egorov, O.; Enikeev, R.; Ereditato, A.; Esposito, L. S.; Favier, J.; Ferber, T.; Fini, R. A.; Frekers, D.; Fukuda, T.; Galkin, V.; Garfagnini, A.; Giacomelli, G.; Giorgini, M.; Goldberg, J.; Göllnitz, C.; Golubkov, D.; Goncharova, L.; Gornushkin, Y.; Grella, G.; Grianti, F.; Guler, A. M.; Gustavino, C.; Hagner, C.; Hamada, K.; Hara, T.; Hierholzer, M.; Hoshino, K.; Ieva, M.; Ishida, H.; Ishiguro, K.; Jakovcic, K.; Jollet, C.; Juget, F.; Kamiscioglu, M.; Kawada, J.; Kazuyama, M.; Kim, S. H.; Kimura, M.; Kitagawa, N.; Klicek, B.; Knuesel, J.; Kodama, K.; Komatsu, M.; Kose, U.; Kreslo, I.; Kubota, H.; Lazzaro, C.; Lenkeit, J.; Lippi, I.; Ljubicic, A.; Longhin, A.; Lutter, G.; Malgin, A.; Mandrioli, G.; Mannai, K.; Marotta, A.; Marteau, J.; Matsuo, T.; Matveev, V.; Mauri, N.; Medinaceli, E.; Meisel, F.; Meregaglia, A.; Migliozzi, P.; Mikado, S.; Miyamoto, S.; Monacelli, P.; Morishima, K.; Moser, U.; Muciaccia, M. T.; Naganawa, N.; Naka, T.; Nakamura, M.; Nakano, T.; Nakatsuka, Y.; Naumov, D.; Nikitina, V.; Niwa, K.; Nonoyama, Y.; Ogawa, S.; Olchevsky, A.; Omura, T.; Orlova, G.; Osedlo, V.; Paniccia, M.; Paoloni, A.; Park, B. D.; Park, I. G.; Pastore, A.; Patrizii, L.; Pennacchio, E.; Pessard, H.; Pilipenko, V.; Pistillo, C.; Polukhina, N.; Pozzato, M.; Pretzl, K.; Publichenko, P.; Pupilli, F.; Repellin, J. P.; Rescigno, R.; Roganova, T.; Rokujo, H.; Romano, G.; Rosa, G.; Rostovtseva, I.; Rubbia, A.; Russo, A.; Ryasny, V.; Ryazhskaya, O.; Sakatani, Y.; Sato, O.; Sato, Y.; Schembri, A.; Schmidt-Parzefall, W.; Schroeder, H.; Scotto Lavina, L.; Sheshukov, A.; Shibuya, H.; Simone, S.; Sioli, M.; Sirignano, C.; Sirri, G.; Song, J. S.; Spinetti, M.; Stanco, L.; Starkov, N.; Stipcevic, M.; Strauss, T.; Strolin, P.; Suzuki, K.; Takahashi, S.; Tenti, M.; Terranova, F.; Tezuka, I.; Tioukov, V.; Tolun, P.; Trabelsi, A.; Tran, T.; Tufanli, S.; Vilain, P.; Vladimirov, M.; Votano, L.; Vuilleumier, J. L.; Wilquet, G.; Wonsak, B.; Yakushev, V.; Yoon, C. S.; Yoshida, J.; Yoshioka, T.; Zaitsev, Y.; Zemskova, S.; Zghiche, A.; Zimmermann, R.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 691, No. 3, 07.2010, p. 138-145.

Research output: Contribution to journalArticle

Agafonova, N, Aleksandrov, A, Altinok, O, Ambrosio, M, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Autiero, D, Badertscher, A, Bagulya, A, Bendhabi, A, Bertolin, A, Besnier, M, Bick, D, Boyarkin, V, Bozza, C, Brugière, T, Brugnera, R, Brunet, F, Brunetti, G, Buontempo, S, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Ciesielski, R, Dal Corso, F, D'Ambrosio, N, Declais, Y, del Amo Sanchez, P, De Lellis, G, De Serio, M, Di Capua, F, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Di Giovanni, A, Dmitrievsky, S, Dracos, M, Duchesneau, D, Dusini, S, Dzhatdoev, T, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, LS, Favier, J, Ferber, T, Fini, RA, Frekers, D, Fukuda, T, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goldberg, J, Göllnitz, C, Golubkov, D, Goncharova, L, Gornushkin, Y, Grella, G, Grianti, F, Guler, AM, Gustavino, C, Hagner, C, Hamada, K, Hara, T, Hierholzer, M, Hoshino, K, Ieva, M, Ishida, H, Ishiguro, K, Jakovcic, K, Jollet, C, Juget, F, Kamiscioglu, M, Kawada, J, Kazuyama, M, Kim, SH, Kimura, M, Kitagawa, N, Klicek, B, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Kubota, H, Lazzaro, C, Lenkeit, J, Lippi, I, Ljubicic, A, Longhin, A, Lutter, G, Malgin, A, Mandrioli, G, Mannai, K, Marotta, A, Marteau, J, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meisel, F, Meregaglia, A, Migliozzi, P, Mikado, S, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, MT, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nakatsuka, Y, Naumov, D, Nikitina, V, Niwa, K, Nonoyama, Y, Ogawa, S, Olchevsky, A, Omura, T, Orlova, G, Osedlo, V, Paniccia, M, Paoloni, A, Park, BD, Park, IG, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Repellin, JP, Rescigno, R, Roganova, T, Rokujo, H, Romano, G, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryasny, V, Ryazhskaya, O, Sakatani, Y, Sato, O, Sato, Y, Schembri, A, Schmidt-Parzefall, W, Schroeder, H, Scotto Lavina, L, Sheshukov, A, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, JS, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Suzuki, K, Takahashi, S, Tenti, M, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Trabelsi, A, Tran, T, Tufanli, S, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, JL, Wilquet, G, Wonsak, B, Yakushev, V, Yoon, CS, Yoshida, J, Yoshioka, T, Zaitsev, Y, Zemskova, S, Zghiche, A & Zimmermann, R 2010, 'Observation of a first ντ candidate event in the OPERA experiment in the CNGS beam', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 691, no. 3, pp. 138-145. https://doi.org/10.1016/j.physletb.2010.06.022
Agafonova, N. ; Aleksandrov, A. ; Altinok, O. ; Ambrosio, M. ; Anokhina, A. ; Aoki, S. ; Ariga, A. ; Ariga, T. ; Autiero, D. ; Badertscher, A. ; Bagulya, A. ; Bendhabi, A. ; Bertolin, A. ; Besnier, M. ; Bick, D. ; Boyarkin, V. ; Bozza, C. ; Brugière, T. ; Brugnera, R. ; Brunet, F. ; Brunetti, G. ; Buontempo, S. ; Cazes, A. ; Chaussard, L. ; Chernyavsky, M. ; Chiarella, V. ; Chon-Sen, N. ; Chukanov, A. ; Ciesielski, R. ; Dal Corso, F. ; D'Ambrosio, N. ; Declais, Y. ; del Amo Sanchez, P. ; De Lellis, G. ; De Serio, M. ; Di Capua, F. ; Di Crescenzo, A. ; Di Ferdinando, D. ; Di Marco, N. ; Di Giovanni, A. ; Dmitrievsky, S. ; Dracos, M. ; Duchesneau, D. ; Dusini, S. ; Dzhatdoev, T. ; Ebert, J. ; Egorov, O. ; Enikeev, R. ; Ereditato, A. ; Esposito, L. S. ; Favier, J. ; Ferber, T. ; Fini, R. A. ; Frekers, D. ; Fukuda, T. ; Galkin, V. ; Garfagnini, A. ; Giacomelli, G. ; Giorgini, M. ; Goldberg, J. ; Göllnitz, C. ; Golubkov, D. ; Goncharova, L. ; Gornushkin, Y. ; Grella, G. ; Grianti, F. ; Guler, A. M. ; Gustavino, C. ; Hagner, C. ; Hamada, K. ; Hara, T. ; Hierholzer, M. ; Hoshino, K. ; Ieva, M. ; Ishida, H. ; Ishiguro, K. ; Jakovcic, K. ; Jollet, C. ; Juget, F. ; Kamiscioglu, M. ; Kawada, J. ; Kazuyama, M. ; Kim, S. H. ; Kimura, M. ; Kitagawa, N. ; Klicek, B. ; Knuesel, J. ; Kodama, K. ; Komatsu, M. ; Kose, U. ; Kreslo, I. ; Kubota, H. ; Lazzaro, C. ; Lenkeit, J. ; Lippi, I. ; Ljubicic, A. ; Longhin, A. ; Lutter, G. ; Malgin, A. ; Mandrioli, G. ; Mannai, K. ; Marotta, A. ; Marteau, J. ; Matsuo, T. ; Matveev, V. ; Mauri, N. ; Medinaceli, E. ; Meisel, F. ; Meregaglia, A. ; Migliozzi, P. ; Mikado, S. ; Miyamoto, S. ; Monacelli, P. ; Morishima, K. ; Moser, U. ; Muciaccia, M. T. ; Naganawa, N. ; Naka, T. ; Nakamura, M. ; Nakano, T. ; Nakatsuka, Y. ; Naumov, D. ; Nikitina, V. ; Niwa, K. ; Nonoyama, Y. ; Ogawa, S. ; Olchevsky, A. ; Omura, T. ; Orlova, G. ; Osedlo, V. ; Paniccia, M. ; Paoloni, A. ; Park, B. D. ; Park, I. G. ; Pastore, A. ; Patrizii, L. ; Pennacchio, E. ; Pessard, H. ; Pilipenko, V. ; Pistillo, C. ; Polukhina, N. ; Pozzato, M. ; Pretzl, K. ; Publichenko, P. ; Pupilli, F. ; Repellin, J. P. ; Rescigno, R. ; Roganova, T. ; Rokujo, H. ; Romano, G. ; Rosa, G. ; Rostovtseva, I. ; Rubbia, A. ; Russo, A. ; Ryasny, V. ; Ryazhskaya, O. ; Sakatani, Y. ; Sato, O. ; Sato, Y. ; Schembri, A. ; Schmidt-Parzefall, W. ; Schroeder, H. ; Scotto Lavina, L. ; Sheshukov, A. ; Shibuya, H. ; Simone, S. ; Sioli, M. ; Sirignano, C. ; Sirri, G. ; Song, J. S. ; Spinetti, M. ; Stanco, L. ; Starkov, N. ; Stipcevic, M. ; Strauss, T. ; Strolin, P. ; Suzuki, K. ; Takahashi, S. ; Tenti, M. ; Terranova, F. ; Tezuka, I. ; Tioukov, V. ; Tolun, P. ; Trabelsi, A. ; Tran, T. ; Tufanli, S. ; Vilain, P. ; Vladimirov, M. ; Votano, L. ; Vuilleumier, J. L. ; Wilquet, G. ; Wonsak, B. ; Yakushev, V. ; Yoon, C. S. ; Yoshida, J. ; Yoshioka, T. ; Zaitsev, Y. ; Zemskova, S. ; Zghiche, A. ; Zimmermann, R. / Observation of a first ντ candidate event in the OPERA experiment in the CNGS beam. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2010 ; Vol. 691, No. 3. pp. 138-145.
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title = "Observation of a first ντ candidate event in the OPERA experiment in the CNGS beam",
abstract = "The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) has been designed to perform the first detection of neutrino oscillations in direct appearance mode through the study of the νμ→ντ channel. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors and it is placed in the high energy long-baseline CERN to LNGS beam (CNGS) 730 km away from the neutrino source. Runs with CNGS neutrinos were successfully carried out in 2008 and 2009. After a brief description of the beam, the experimental setup and the procedures used for the analysis of the neutrino events, we describe the topology and kinematics of a first candidate ?? charged-current event satisfying the kinematical selection criteria. The background calculations and their cross-check are explained in detail and the significance of the event is assessed.",
author = "N. Agafonova and A. Aleksandrov and O. Altinok and M. Ambrosio and A. Anokhina and S. Aoki and A. Ariga and T. Ariga and D. Autiero and A. Badertscher and A. Bagulya and A. Bendhabi and A. Bertolin and M. Besnier and D. Bick and V. Boyarkin and C. Bozza and T. Brugi{\`e}re and R. Brugnera and F. Brunet and G. Brunetti and S. Buontempo and A. Cazes and L. Chaussard and M. Chernyavsky and V. Chiarella and N. Chon-Sen and A. Chukanov and R. Ciesielski and {Dal Corso}, F. and N. D'Ambrosio and Y. Declais and {del Amo Sanchez}, P. and {De Lellis}, G. and {De Serio}, M. and {Di Capua}, F. and {Di Crescenzo}, A. and {Di Ferdinando}, D. and {Di Marco}, N. and {Di Giovanni}, A. and S. Dmitrievsky and M. Dracos and D. Duchesneau and S. Dusini and T. Dzhatdoev and J. Ebert and O. Egorov and R. Enikeev and A. Ereditato and Esposito, {L. S.} and J. Favier and T. Ferber and Fini, {R. A.} and D. Frekers and T. Fukuda and V. Galkin and A. Garfagnini and G. Giacomelli and M. Giorgini and J. Goldberg and C. G{\"o}llnitz and D. Golubkov and L. Goncharova and Y. Gornushkin and G. Grella and F. Grianti and Guler, {A. M.} and C. Gustavino and C. Hagner and K. Hamada and T. Hara and M. Hierholzer and K. Hoshino and M. Ieva and H. Ishida and K. Ishiguro and K. Jakovcic and C. Jollet and F. Juget and M. Kamiscioglu and J. Kawada and M. Kazuyama and Kim, {S. H.} and M. Kimura and N. Kitagawa and B. Klicek and J. Knuesel and K. Kodama and M. Komatsu and U. Kose and I. Kreslo and H. Kubota and C. Lazzaro and J. Lenkeit and I. Lippi and A. Ljubicic and A. Longhin and G. Lutter and A. Malgin and G. Mandrioli and K. Mannai and A. Marotta and J. Marteau and T. Matsuo and V. Matveev and N. Mauri and E. Medinaceli and F. Meisel and A. Meregaglia and P. Migliozzi and S. Mikado and S. Miyamoto and P. Monacelli and K. Morishima and U. Moser and Muciaccia, {M. T.} and N. Naganawa and T. Naka and M. Nakamura and T. Nakano and Y. Nakatsuka and D. Naumov and V. Nikitina and K. Niwa and Y. Nonoyama and S. Ogawa and A. Olchevsky and T. Omura and G. Orlova and V. Osedlo and M. Paniccia and A. Paoloni and Park, {B. D.} and Park, {I. G.} and A. Pastore and L. Patrizii and E. Pennacchio and H. Pessard and V. Pilipenko and C. Pistillo and N. Polukhina and M. Pozzato and K. Pretzl and P. Publichenko and F. Pupilli and Repellin, {J. P.} and R. Rescigno and T. Roganova and H. Rokujo and G. Romano and G. Rosa and I. Rostovtseva and A. Rubbia and A. Russo and V. Ryasny and O. Ryazhskaya and Y. Sakatani and O. Sato and Y. Sato and A. Schembri and W. Schmidt-Parzefall and H. Schroeder and {Scotto Lavina}, L. and A. Sheshukov and H. Shibuya and S. Simone and M. Sioli and C. Sirignano and G. Sirri and Song, {J. S.} and M. Spinetti and L. Stanco and N. Starkov and M. Stipcevic and T. Strauss and P. Strolin and K. Suzuki and S. Takahashi and M. Tenti and F. Terranova and I. Tezuka and V. Tioukov and P. Tolun and A. Trabelsi and T. Tran and S. Tufanli and P. Vilain and M. Vladimirov and L. Votano and Vuilleumier, {J. L.} and G. Wilquet and B. Wonsak and V. Yakushev and Yoon, {C. S.} and J. Yoshida and T. Yoshioka and Y. Zaitsev and S. Zemskova and A. Zghiche and R. Zimmermann",
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pages = "138--145",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
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TY - JOUR

T1 - Observation of a first ντ candidate event in the OPERA experiment in the CNGS beam

AU - Agafonova, N.

AU - Aleksandrov, A.

AU - Altinok, O.

AU - Ambrosio, M.

AU - Anokhina, A.

AU - Aoki, S.

AU - Ariga, A.

AU - Ariga, T.

AU - Autiero, D.

AU - Badertscher, A.

AU - Bagulya, A.

AU - Bendhabi, A.

AU - Bertolin, A.

AU - Besnier, M.

AU - Bick, D.

AU - Boyarkin, V.

AU - Bozza, C.

AU - Brugière, T.

AU - Brugnera, R.

AU - Brunet, F.

AU - Brunetti, G.

AU - Buontempo, S.

AU - Cazes, A.

AU - Chaussard, L.

AU - Chernyavsky, M.

AU - Chiarella, V.

AU - Chon-Sen, N.

AU - Chukanov, A.

AU - Ciesielski, R.

AU - Dal Corso, F.

AU - D'Ambrosio, N.

AU - Declais, Y.

AU - del Amo Sanchez, P.

AU - De Lellis, G.

AU - De Serio, M.

AU - Di Capua, F.

AU - Di Crescenzo, A.

AU - Di Ferdinando, D.

AU - Di Marco, N.

AU - Di Giovanni, A.

AU - Dmitrievsky, S.

AU - Dracos, M.

AU - Duchesneau, D.

AU - Dusini, S.

AU - Dzhatdoev, T.

AU - Ebert, J.

AU - Egorov, O.

AU - Enikeev, R.

AU - Ereditato, A.

AU - Esposito, L. S.

AU - Favier, J.

AU - Ferber, T.

AU - Fini, R. A.

AU - Frekers, D.

AU - Fukuda, T.

AU - Galkin, V.

AU - Garfagnini, A.

AU - Giacomelli, G.

AU - Giorgini, M.

AU - Goldberg, J.

AU - Göllnitz, C.

AU - Golubkov, D.

AU - Goncharova, L.

AU - Gornushkin, Y.

AU - Grella, G.

AU - Grianti, F.

AU - Guler, A. M.

AU - Gustavino, C.

AU - Hagner, C.

AU - Hamada, K.

AU - Hara, T.

AU - Hierholzer, M.

AU - Hoshino, K.

AU - Ieva, M.

AU - Ishida, H.

AU - Ishiguro, K.

AU - Jakovcic, K.

AU - Jollet, C.

AU - Juget, F.

AU - Kamiscioglu, M.

AU - Kawada, J.

AU - Kazuyama, M.

AU - Kim, S. H.

AU - Kimura, M.

AU - Kitagawa, N.

AU - Klicek, B.

AU - Knuesel, J.

AU - Kodama, K.

AU - Komatsu, M.

AU - Kose, U.

AU - Kreslo, I.

AU - Kubota, H.

AU - Lazzaro, C.

AU - Lenkeit, J.

AU - Lippi, I.

AU - Ljubicic, A.

AU - Longhin, A.

AU - Lutter, G.

AU - Malgin, A.

AU - Mandrioli, G.

AU - Mannai, K.

AU - Marotta, A.

AU - Marteau, J.

AU - Matsuo, T.

AU - Matveev, V.

AU - Mauri, N.

AU - Medinaceli, E.

AU - Meisel, F.

AU - Meregaglia, A.

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PY - 2010/7

Y1 - 2010/7

N2 - The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) has been designed to perform the first detection of neutrino oscillations in direct appearance mode through the study of the νμ→ντ channel. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors and it is placed in the high energy long-baseline CERN to LNGS beam (CNGS) 730 km away from the neutrino source. Runs with CNGS neutrinos were successfully carried out in 2008 and 2009. After a brief description of the beam, the experimental setup and the procedures used for the analysis of the neutrino events, we describe the topology and kinematics of a first candidate ?? charged-current event satisfying the kinematical selection criteria. The background calculations and their cross-check are explained in detail and the significance of the event is assessed.

AB - The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) has been designed to perform the first detection of neutrino oscillations in direct appearance mode through the study of the νμ→ντ channel. The hybrid apparatus consists of an emulsion/lead target complemented by electronic detectors and it is placed in the high energy long-baseline CERN to LNGS beam (CNGS) 730 km away from the neutrino source. Runs with CNGS neutrinos were successfully carried out in 2008 and 2009. After a brief description of the beam, the experimental setup and the procedures used for the analysis of the neutrino events, we describe the topology and kinematics of a first candidate ?? charged-current event satisfying the kinematical selection criteria. The background calculations and their cross-check are explained in detail and the significance of the event is assessed.

UR - http://www.scopus.com/inward/record.url?scp=77954623742&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954623742&partnerID=8YFLogxK

U2 - 10.1016/j.physletb.2010.06.022

DO - 10.1016/j.physletb.2010.06.022

M3 - Article

AN - SCOPUS:77954623742

VL - 691

SP - 138

EP - 145

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 3

ER -