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203. Nuclear resonant scattering experiment with fast time response: Photonuclear excitation of Hg201

Author

Yoshimi, A., primary, Hara, H., additional, Hiraki, T., additional, Kasamatsu, Y., additional, Kitao, S., additional, Kobayashi, Y., additional, Konashi, K., additional, Masuda, R., additional, Masuda, T., additional, Miyamoto, Y., additional, Okai, K., additional, Okubo, S., additional, Ozaki, R., additional, Sasao, N., additional, Sato, O., additional, Seto, M., additional, Schumm, T., additional, Shigekawa, Y., additional, Stellmer, S., additional, Suzuki, K., additional, Uetake, S., additional, Watanabe, M., additional, Yamaguchi, A., additional, Yasuda, Y., additional, Yoda, Y., additional, Yoshimura, K., additional, and Yoshimura, M., additional

Published
2018
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204. Measurement of charm production in antineutrino charged-current interactions

Author

Onengüt, G, Van Dantzig, R, De Jong, M, Konijn, J, Melzer, O, Oldeman, R G C, Pesen, E, Van der Poel, C A F J, Visschers, J L, Güler, M, Köse, U, Serin-Zeyrek, M, Kama, S, Sever, R, Tolun, P, Zeyrek, M T, Catanesi, M G, De Serio, M, Ieva, M, Muciaccia, M T, Radicioni, E, Simone, S, Bülte, A, Winter, Klaus, Van de Vyver, B, Vilain, P, Wilquet, G, Saitta, B, Di Capua, E, Ogawa, S, Shibuya, H, Artamonov, A V, Brunner, J, Chizhov, M, Cussans, D G, Doucet, M, Fabre, Jean-Paul, Hristova, I R, Kawamura, T, Kolev, D, Litmaath, M, Meinhard, H, Panman, J, Papadopoulos, I M, Ricciardi, S, Rozanov, A, Saltzberg, D, Tsenov, R V, Uiterwijk, J W E, Zucchelli, P, Goldberg, J, Chikawa, M, Arik, E, Song, J S, Yoon, C S, Kodama, K, Ushida, N, Aoki, S, Hara, T, Delbar, T, Favart, D, Grégoire, G, Kalinin, S, Makhlyoueva, I V, Gorbunov, P, Khovanskii, V D, Shamanov, V V, Tsukerman, I, Bruski, N, Frekers, D, Rondeshagen, D, Wolff, T, Hoshino, K, Kawada, J, Komatsu, M, Miyanishi, M, Nakamura, M, Nakano, T, Narita, K, Niu, K, Niwa, K, Nonaka, N, Sato, O, Toshito, T, Buontempo, S, Cocco, A G, D'Ambrosio, N, De Lellis, G, De Rosa, G, Di Capua, F, Ereditato, A, Fiorillo, G, Marotta, A, Messina, M, Migliozzi, P, Pistillo, C, Santorelli, R, Scotto-Lavina, L, Strolin, P, Tioukov, V, Nakamura, K, Okusawa, T, Dore, U, FLoverre, P, Ludovici, L, Maslennikov, A L, Righini, P, Rosa, G, Santacesaria, R, Satta, A, Spada, F R, Barbuto, E, Bozza, C, Grella, G, Romano, G, Sirignano, C, Sorrentino, S, Sato, Y, Tezuka, I, Other Research IHEF (IoP, FNWI), UCL - SC/PHYS - Département de physique, Çukurova Üniversitesi, Önengüt, G., van Dantzig, R., de Jong, M., Melzer, O., Oldeman, R. G. C., Pesen, E., Visschers, J. L., Güler, M., Köse, U., Serin Zeyrek, M., Sever, R., Tolun, P., Zeyrek, M. T., Catanesi, M. G., De Serio, M., Ieva, M., Muciaccia, M. T., Radicioni, E., Simone, S., Bülte, A., Winter, K., Van de Vyver, B., Vilain, P., Wilquet, G., Saitta, B., Di Capua, E., Ogawa, S., Shibuya, H., Artamonov, A., Chizhov, M., Doucet, M., Hristova, I. R., Kayis Topaksu, A., Kawamura, T., Kolev, D., Meinhard, H., Panman, J., Papadopoulos, I. M., Ricciardi, S., Rozanov, A., Tsenov, R., Uiterwijk, J. W. E., Zucchelli, P., Goldberg, J., Chikawa, M., Arik, E., Song, J. S., Yoon, C. S., Kodama, K., Ushida, N., Aoki, S., Hara, T., Delbar, T., Favart, D., Grégoire, G., Kalinin, S., Makhlioueva, I., Gorbunov, P., Khovansky, V., Shamanov, V., Tsukerman, I., Bruski, N., Frekers, D., Hoshino, K., Kawada, J., Komatsu, M., Miyanishi, M., Nakamura, M., Nakano, T., Narita, K., Niu, K., Niwa, K., Nonaka, N., Sato, O., Toshito, T., Buontempo, S., Cocco, A. G., D'Ambrosio, N., De Lellis, G., De Rosa, G., DI CAPUA, Francesco, Ereditato, A., Fiorillo, Giuliana, Marotta, A., Messina, M., Migliozzi, P., Pistillo, C., Scotto Lavina, L., Strolin, P., Tioukov, V., Nakamura, K., Okusawa, T., Dore, U., Loverre, P. F., Ludovici, L., Righini, P., Rosa, G., Santacesaria, R., Satta, A., Spada, F. R., Barbuto, E., Bozza, C., Grella, G., Romano, G., Sirignano, C., Sorrentino, S., Sato, Y., Tezuka, I., G., Onengut, R. v., Dantzig, M. d., Jong, O., Melzer, R. G., C., E., Pesen, J. L., Visscher, M., Guler, U., Kose, M., Serin Zeyrek, R., Sever, P., Tolun, M. T., Zeyrek, M. G., Catanesi, M. D., Serio, M., Ieva, M. T., Muciaccia, E., Radicioni, S., Simone, A., Bulte, K., Winter, B. V., De, P., Vilain, G., Wilquet, B., Saitta, E. D., Capua, S., Ogawa, H., Shibuya, A., Artamonov, M., Chizhov, M., Doucet, I. R., Hristova, A., Kayis Topaksu, T., Kawamura, D., Kolev, H., Meinhard, J., Panman, I. M., Papadopoulo, S., Ricciardi, A., Rozanov, R., Tsenov, J. W., E., P., Zucchelli, J., Goldberg, M., Chikawa, J. S., Song, C. S., Yoon, K., Kodama, N., Ushida, S., Aoki, T., Hara, T., Delbar, D., Favart, G., Gregoire, S., Kalinin, I., Makhlioueva, P., Gorbunov, V., Khovansky, V., Shamanov, I., Tsukerman, N., Bruski, D., Freker, K., Hoshino, J., Kawada, M., Komatsu, M., Miyanishi, M., Nakamura, T., Nakano, K., Narita, K., Niu, K., Niwa, N., Nonaka, O., Sato, T., Toshito, S., Buontempo, A. G., Cocco, N., D'Ambrosio, DE LELLIS, Giovanni, DE ROSA, Gianfranca, A., Ereditato, A., Marotta, M., Messina, P., Migliozzi, C., Pistillo, L. S., Lavina, P., Strolin, V., Tioukov, K., Nakamura, T., Okusawa, U., Dore, P. F., Loverre, L., Ludovici, P., Righini, G., Rosa, R., Santacesaria, A., Satta, F. R., Spada, E., Barbuto, C., Bozza, G., Grella, G., Romano, C., Sirignano, S., Sorrentino, Y., Sato, and I., Tezuka

Subjects
Physics, NEUTRINO INTERACTIONS, CHORUS EXPERIMENT, Nuclear and High Energy Physics, Particle physics, Muon, Large Hadron Collider, Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, Charge (physics), BEAMS, EVENTS, Nuclear physics, OPPOSITE-SIGN DIMUONS, High Energy Physics::Experiment, Production (computer science), Charm (quantum number), Neutrino, Nuclear Experiment, Particle Physics - Experiment, Charged current, Beam (structure)
Abstract

During the years 1994-1997, the emulsion target of the CHORUS detector was exposed to the wide-band neutrino beam of the CERN SPS collecting about 10 6 neutrino interactions. A measurement of ?¯µ-induced charm production is performed by using the presence of a 5% ?¯µ component in the ?µ beam. The measurement takes advantage of the capability to observe the decay topology in the emulsion. The analysis is based on a sample of charged-current interactions with at least one identified muon. About 100000 were located in the emulsion target and fully reconstructed. By requiring a positive muon charge as determined by the CHORUS muon spectrometer, 32?¯µ-induced charm events were observed with an estimated background of 3.2 events. At an average antineutrino energy in the neutrino beam of 18 GeV, the charm production rate induced by antineutrinos is measured to be ?(?¯µN›µ+c¯X)/?(?¯µN›µ+X) =(5.0-0.9+1.4(stat)±0.7(syst))%. The ratio between neutral and charged charm production rates in this process is (2.6-1.0+1.7(stat)±0.8(syst)). The charm production rate as a function of the antineutrino energy is found to be in good agreement with previous results derived from di-lepton data. © 2004 Elsevier B.V. All rights reserved. Bundesministerium für Bildung und Forschung Promotion and Mutual Aid Corporation for Private Schools of Japan Grant Foundation: KRF-2003-005-C00014 Israel Science Foundation: 328/94 CERN Brussels Instituut voor Milieubeheer Instituto Nazionale di Fisica Nucleare Foundation for Fundamental Research on Matter Korean Foundation for Cancer Research We gratefully acknowledge the help and support of the neutrino-beam staff and of the numerous technical collaborators who contributed to the detector construction, operation, emulsion pouring, development, and scanning. The experiment was made possible by grants from the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium); the Israel Science Foundation (Grant 328/94) and the Technion Vice President Fund for the Promotion of Research (Israel); CERN (Geneva, Switzerland); the German Bundesministerium für Bildung und Forschung (Germany); the Institute of Theoretical and Experimental Physics (Moscow, Russia); the Istituto Nazionale di Fisica Nucleare (Italy); the Promotion and Mutual Aid Corporation for Private Schools of Japan and Japan Society for the Promotion of Science (Japan); Korea Research Foundation Grant (KRF-2003-005-C00014) (Republic of Korea); the Foundation for Fundamental Research on Matter FOM and the National Scientific Research Organization NWO (The Netherlands); and the Scientific, and Technical Research Council of Turkey (Turkey). We gratefully acknowledge their support.

Published
2004
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205. Measurement of the neutrino velocity with the OPERA detector in the CNGS beam

Author

The OPERA Collaboration, Adam, T., Agafonova, N., Aleksandrov, A., Altinok, O., Sanchez, P. Alvarez, Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Autiero, D., Badertscher, A., Dhahbi, A. Ben, Bertolin, A., Bozza, C., Brugiere, T., Brugnera, R., Brunet, F., Brunetti, G., Buontempo, S., Carlus, B., Cavanna, F., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Colosimo, G., Crespi, M., D'Ambrosio, N., De Lellis, G., De Serio, M., Declais, Y., Sanchez, P. del Amo, Di Capua, F., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Efthymiopoulos, I., Egorov, O., Ereditato, A., Esposito, L. S., Favier, J., Ferber, T., Fini, R. A., Fukuda, T., Garfagnini, A., Giacomelli, G., Giorgini, M., Giovannozzi, M., Girerd, C., Goldberg, J., Gollnitz, C., Golubkov, D., Goncharova, L., Gornushkin, Y., Grella, G., Grianti, F., Gschwendtner, E., Guerin, C., Guler, A. M., Gustavino, C., Hagner, C., Hamada, K., Hara, T., Enikeev, R., Hierholzer, M., Hollnagel, A., Ieva, M., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Jones, M., Juget, F., Kamiscioglu, M., Kawada, J., Kim, S. H., Kimura, M., Kiritsis, E., Kitagawa, N., Klicek, B., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Mazzoni, A., Medinaceli, E., Meisel, F., Meregaglia, A., Migliozzi, P., Mikado, S., Missiaen, D., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Naumov, D., Nikitina, V., Nitti, F., Ogawa, S., Okateva, N., Olchevsky, A., Palamara, O., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Riguzzi, F., Roganova, T., Rokujo, H., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryasny, V., Ryazhskaya, O., Sato, O., Sato, Y., Sahnoun, Z., Schembri, A., Schuler, J., Lavina, L. Scotto, Serrano, J., Shakiryanova, I., Sheshukov, A., Shibuya, H., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Song, J. S., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S., Stipcevic, M., Strauss, T., Takahashi, S., Tenti, M., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Tran, N. T., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. -L., Wilquet, G., Wonsak, B., Wurtz, J., Yakushev, V., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., Adam, T., Agafonova, N., Aleksandrov, A., Altinok, O., Alvarez Sanchez, P., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Autiero, D., Badertscher, A., Ben Dhahbi, A., Bertolin, A., Bozza, C., Brugière, T., Brugnera, R., Brunet, F., Brunetti, G., Buontempo, S., Carlus, B., Cavanna, F., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Colosimo, G., Crespi, M., D’Ambrosio, N., De Lellis, G., De Serio, M., Déclais, Y., del Amo Sanchez, P., DI CAPUA, Francesco, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievsky, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Efthymiopoulos, I., Egorov, O., Ereditato, A., Esposito, L. S., Favier, J., Ferber, T., Fini, R. A., Fukuda, T., Garfagnini, A., Giacomelli, G., Giorgini, M., Giovannozzi, M., Girerd, C., Goldberg, J., Göllnitz, C., Golubkov, D., Goncharova, L., Gornushkin, Y., Grella, G., Grianti, F., Gschwendtner, E., Guerin, C., Guler, A. M., Gustavino, C., Hagner, C., Hamada, K., Hara, T., Enikeev, R., Hierholzer, M., Hollnagel, A., Ieva, M., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Jones, M., Juget, F., Kamiscioglu, M., Kawada, J., Kim, S. H., Kimura, M., Kiritsis, E., Kitagawa, N., Klicek, B., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Mazzoni, A., Medinaceli, E., Meisel, F., Meregaglia, A., Migliozzi, P., Mikado, S., Missiaen, D., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Naumov, D., Nikitina, V., Nitti, F., Ogawa, S., Okateva, N., Olchevsky, A., Palamara, O., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Riguzzi, F., Roganova, T., Rokujo, H., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryasny, V., Ryazhskaya, O., Sato, O., Sato, Y., Sahnoun, Z., Schembri, A., Schuler, J., Scotto Lavina, L., Serrano, J., Shakiryanova, I., Sheshukov, A., Shibuya, H., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Song, J. S., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S., Stipcevic, M., Strauss, T., Takahashi, S., Tenti, M., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Trani, N. T., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Wurtz, J., Yakushev, V., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., DE LELLIS, Giovanni, DI CRESCENZO, Antonia, T. ADAM, N. AGAFONOVA, A. ALEKSANDROV, O. ALTINOK, P. ALVAREZ SANCHEZ, A. ANOKHINA, S. AOKI, A. ARIGA, T. ARIGA, D. AUTIERO, A. BADERTSCHER, A. BEN DHAHBI, A. BERTOLIN, C. BOZZA, T. BRUGI ERE, R. BRUGNERA, F. BRUNET, G. BRUNETTI, S. BUONTEMPO, B. CARLUS, F. CAVANNA, A. CAZES, L. CHAUSSARD, M. CHERNYAVSKY, V. CHIARELLA, A. CHUKANOV, G. COLOSIMO, M. CRESPI, N. D'AMBROSIO, G. DE LELLIS, M. DE SERIO, Y. D ECLAIS, P. DEL AMO SANCHEZ, F. DI CAPUA, A. DI CRESCENZO, D. DI FERDINANDO, N. DI MARCO, S. DMITRIEVSKY, M. DRACOS, D. DUCHESNEAU, S. DUSINI, T. DZHATDOEV, J. EBERT, I. EFTHYMIOPOULOS, O. EGOROV, A. EREDITATO, L.S. ESPOSITO, J. FAVIER, T. FERBER, R. A. FINI, T. FUKUDA, A. GARFAGNINI, G. GIACOMELLI, M. GIORGINI, M. GIOVANNOZZI, C. GIRERD, J. GOLDBERG, C. GOLLNITZ, D. GOLUBKOV, L. GONCHAROVA, Y. GORNUSHKIN, G. GRELLA, F. GRIANTI, E. GSCHWENDTNER, C. GUERIN, A. M. GULER, C. GUSTAVINO, C. HAGNER, K. HAMADA, T. HARA, R. ENIKEEV, M. HIERHOLZER, A. HOLLNAGEL, M. IEVA, H. ISHIDA, K. ISHIGURO, K. JAKOVCIC, C. JOLLET, M. JONES, F. JUGET, M. KAMISCIOGLU, J. KAWADA, S. H. KIM, M. KIMURA, E. KIRITSIS, N. KITAGAWA, B. KLICEK, J. KNUESEL, K. KODAMA, M. KOMATSU, U. KOSE, I. KRESLO, C. LAZZARO, J. LENKEIT, A. LJUBICIC, A. LONGHIN, A. MALGIN, G. MANDRIOLI, J. MARTEAU, T. MATSUO, V. MATVEEV, N. MAURI, A. MAZZONI, E. MEDINACELI, F. MEISEL, A. MEREGAGLIA, P. MIGLIOZZI, S. MIKADO, D. MISSIAEN, P. MONACELLI, K. MORISHIMA, U. MOSER, M. T. MUCIACCIA, N. NAGANAWA, T. NAKA, M. NAKAMURA, T. NAKANO, Y. NAKATSUKA, D. NAUMOV, V. NIKITINA, F. NITTI, S. OGAWA, N. OKATEVA, A. OLCHEVSKY, O. PALAMARA, A. PAOLONI, B. D. PARK, I. G. PARK, A. PASTORE, L. PATRIZII, E. PENNACCHIO, H. PESSARD, C. PISTILLO, N. POLUKHINA, M. POZZATO, K. PRETZL, F. PUPILLI, R. RESCIGNO, F. RIGUZZI, T. ROGANOVA, H. ROKUJO, G. ROSA, I. ROSTOVTSEVA, A. RUBBIA, A. RUSSO, V. RYASNY, O. RYAZHSKAYA, O. SATO, Y. SATO, Z. SAHNOUN, A. SCHEMBRI, J. SCHULER, L. SCOTTO LAVINA, J. SERRANO, I. SHAKIRYANOVA, A. SHESHUKOV, H. SHIBUYA, G. SHOZIYOEV, S. SIMONE, M. SIOLI, C. SIRIGNANO, G. SIRRI, J. S. SONG, M. SPINETTI, L. STANCO, N. STARKOV, S. STELLACCI, M. STIPCEVIC, T. STRAUSS, S. TAKAHASHI, M. TENTI, F. TERRANOVA, I. TEZUKA, V. TIOUKOV, P. TOLUN, N.T. TRAN, S. TUFANLI, P. VILAIN, M. VLADIMIROV, L. VOTANO, J. L. VUILLEUMIER, G. WILQUET, B. WONSAK, J. WURTZ, V. YAKUSHEV, C. S. YOON, J. YOSHIDA, Y. ZAITSEV, S. ZEMSKOVAT, A. ZGHICHEN, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire SUBATECH Nantes (SUBATECH), Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Nantes (UN)-Mines Nantes (Mines Nantes), OPERA, Adam, T, Agafonova, N, Aleksandrov, A, Altinok, O, Alvarez Sanchez, P, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Autiero, D, Badertscher, A, Ben Dhahbi, A, Bertolin, A, Bozza, C, Brugière, T, Brugnera, R, Brunet, F, Brunetti, G, Buontempo, S, Carlus, B, Cavanna, F, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chukanov, A, Colosimo, G, Crespi, M, D’Ambrosio, N, De Lellis, G, De Serio, M, Déclais, Y, del Amo Sanchez, P, Di Capua, F, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Dmitrievsky, S, Dracos, M, Duchesneau, D, Dusini, S, Dzhatdoev, T, Ebert, J, Efthymiopoulos, I, Egorov, O, Ereditato, A, Esposito, L, Favier, J, Ferber, T, Fini, R, Fukuda, T, Garfagnini, A, Giacomelli, G, Giorgini, M, Giovannozzi, M, Girerd, C, Goldberg, J, Göllnitz, C, Golubkov, D, Goncharova, L, Gornushkin, Y, Grella, G, Grianti, F, Gschwendtner, E, Guerin, C, Guler, A, Gustavino, C, Hagner, C, Hamada, K, Hara, T, Enikeev, R, Hierholzer, M, Hollnagel, A, Ieva, M, Ishida, H, Ishiguro, K, Jakovcic, K, Jollet, C, Jones, M, Juget, F, Kamiscioglu, M, Kawada, J, Kim, S, Kimura, M, Kiritsis, E, Kitagawa, N, Klicek, B, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Malgin, A, Mandrioli, G, Marteau, J, Matsuo, T, Matveev, V, Mauri, N, Mazzoni, A, Medinaceli, E, Meisel, F, Meregaglia, A, Migliozzi, P, Mikado, S, Missiaen, D, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nakatsuka, Y, Naumov, D, Nikitina, V, Nitti, F, Ogawa, S, Okateva, N, Olchevsky, A, Palamara, O, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Pupilli, F, Rescigno, R, Riguzzi, F, Roganova, T, Rokujo, H, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryasny, V, Ryazhskaya, O, Sato, O, Sato, Y, Sahnoun, Z, Schembri, A, Schuler, J, Scotto Lavina, L, Serrano, J, Shakiryanova, I, Sheshukov, A, Shibuya, H, Shoziyoev, G, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stellacci, S, Stipcevic, M, Strauss, T, Takahashi, S, Tenti, M, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Trani, N, Tufanli, S, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Wurtz, J, Yakushev, V, Yoon, C, Yoshida, J, Zaitsev, Y, Zemskova, S, and Zghiche, A

Subjects
velocity, Particle physics, Nuclear and High Energy Physics, Neutrino detectors and telescopes, NEUTRINO VELOCITY, Physics::Instrumentation and Detectors, GPS, Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, neutrino, OPERA, CNGS, 7. Clean energy, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Physics, Geodesy, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Muon neutrino, 010306 general physics, Physics, Muon, Large Hadron Collider, 010308 nuclear & particles physics, Massless particle, High Energy Physics - Phenomenology, NEUTRINOS, Physique des particules élémentaires, PARTICLE PHYSICS, Measurements of neutrino speed, High Energy Physics::Experiment, Neutrino, Energy source, Particle Physics - Experiment, Lepton
Abstract

The OPERA neutrino experiment at the underground Gran Sasso Laboratory has measured the velocity of neutrinos from the CERN CNGS beam over a baseline of about 730 km. The measurement is based on data taken by OPERA in the years 2009, 2010 and 2011. Dedicated upgrades of the CNGS timing system and of the OPERA detector, as well as a high precision geodesy campaign for the measurement of the neutrino baseline, allowed reaching comparable systematic and statistical accuracies. An arrival time of CNGS muon neutrinos with respect to the one computed assuming the speed of light in vacuum of (6:5 ± 7:4 (stat:) +8.34 -8.0(sys:)) ns was measured corresponding to a relative difference of the muon neutrino velocity with respect to the speed of light (v - c)=c = (2:7 ± 3:1 (stat:) +3.4 -3:3 (sys:)) × 10 -6. The above result, obtained by comparing the time distributions of neutrino interactions and of protons hitting the CNGS target in 10.5 μs long extractions, was confirmed by a test performed at the end of 2011 using a short bunch beam allowing to measure the neutrino time of ight at the single interaction level., 0, arXiv-1109.4897v4, info:eu-repo/semantics/published

Published
2012
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208. The active muon shield in the SHiP experiment

Author

Akmete, A., Alexandrov, A., Anokhina, A., Aoki, S., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Baranov, A., Barker, G. J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Boyarsky, A., Brenner, Richard, Breton, D., Brundler, R., Bruschi, M., Buscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Campanelli, M., Chauveau, J., Chepurnov, A., Chernyavsky, M., Choi, K. -Y, Chumakov, A., Ciambrone, P., Dallavalle, G. M., D'Ambrosio, N., D'Appollonio, G., De Lellis, G., De Roeck, A., De Serio, M., Dedenko, L., Di Crescenzo, A., Di Marco, N., Dib, C., Dijkstra, H., Dmitrenko, V., Domenici, D., Donskov, S., Dubreuil, A., Ebert, J., Enik, T., Etenko, A., Fabbri, F., Fabbri, L., Fedin, O., Fedorova, G., Felici, G., Ferro-Luzzi, M., Fini, R. A., Fonte, P., Franco, C., Fukuda, T., Galati, G., Gavrilov, G., Gerlach, S., Golinka-Bezshyyko, L., Golubkov, D., Golutvin, A., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Graverini, E., Grichine, V., Guler, A. M., Guz, Yu., Hagner, C., Hakobyan, H., van Herwijnen, E., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Jacobsson, R., Jonker, M., Kadenko, I., Kamiscioglu, C., Kamiscioglu, M., Khabibullin, M., Khaustov, G., Khotyantsev, A., Kim, S. H., Kim, V., Kim, Y. G., Kitagawa, N., Ko, J. -W, Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Konovalova, N., Korkmaz, M. A., Korol, I., Korol'ko, I., Korzenev, A., Kovalenko, S., Krasilnikova, I., Krivova, K., Kudenko, Y., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lai, A., Lanfranchi, G., Lantwin, O., Lauria, A., Lebbolo, H., Lee, K. Y., Levy, J. -M, Lopes, L., Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Mefodev, A., Mermod, P., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Naganawa, N., Nakamura, M., Nakano, T., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Owen, P. H., Paoloni, A., Park, B. D., Paparella, L., Pastore, A., Patel, M., Pereyma, D., Petrenko, D., Petridis, K., Podgrudkov, D., Poliakov, V., Polukhina, N., Prokudin, M., Prota, A., Rademakers, A., Ratnikov, F., Rawlings, T., Razeti, M., Redi, F., Ricciardi, S., Roganova, T., Rogozhnikov, A., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Saputi, A., Sato, O., Savchenko, E. S., Schmidt-Parzefall, W., Serra, N., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shustov, A., Silverstein, S. B., Simone, S., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Starkov, N., Storaci, B., Strolin, P., Takahashi, S., Timiryasov, I., Tioukov, V., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Vilchinski, S., Villa, M., Vlasik, K., Volkov, A., Voronkov, R., Wanke, R., Woo, J. -K, Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zaytsev, Yu., Akmete, A., Alexandrov, A., Anokhina, A., Aoki, S., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Baranov, A., Barker, G. J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Boyarsky, A., Brenner, Richard, Breton, D., Brundler, R., Bruschi, M., Buscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Campanelli, M., Chauveau, J., Chepurnov, A., Chernyavsky, M., Choi, K. -Y, Chumakov, A., Ciambrone, P., Dallavalle, G. M., D'Ambrosio, N., D'Appollonio, G., De Lellis, G., De Roeck, A., De Serio, M., Dedenko, L., Di Crescenzo, A., Di Marco, N., Dib, C., Dijkstra, H., Dmitrenko, V., Domenici, D., Donskov, S., Dubreuil, A., Ebert, J., Enik, T., Etenko, A., Fabbri, F., Fabbri, L., Fedin, O., Fedorova, G., Felici, G., Ferro-Luzzi, M., Fini, R. A., Fonte, P., Franco, C., Fukuda, T., Galati, G., Gavrilov, G., Gerlach, S., Golinka-Bezshyyko, L., Golubkov, D., Golutvin, A., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Graverini, E., Grichine, V., Guler, A. M., Guz, Yu., Hagner, C., Hakobyan, H., van Herwijnen, E., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Jacobsson, R., Jonker, M., Kadenko, I., Kamiscioglu, C., Kamiscioglu, M., Khabibullin, M., Khaustov, G., Khotyantsev, A., Kim, S. H., Kim, V., Kim, Y. G., Kitagawa, N., Ko, J. -W, Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Konovalova, N., Korkmaz, M. A., Korol, I., Korol'ko, I., Korzenev, A., Kovalenko, S., Krasilnikova, I., Krivova, K., Kudenko, Y., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lai, A., Lanfranchi, G., Lantwin, O., Lauria, A., Lebbolo, H., Lee, K. Y., Levy, J. -M, Lopes, L., Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Mefodev, A., Mermod, P., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Naganawa, N., Nakamura, M., Nakano, T., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Owen, P. H., Paoloni, A., Park, B. D., Paparella, L., Pastore, A., Patel, M., Pereyma, D., Petrenko, D., Petridis, K., Podgrudkov, D., Poliakov, V., Polukhina, N., Prokudin, M., Prota, A., Rademakers, A., Ratnikov, F., Rawlings, T., Razeti, M., Redi, F., Ricciardi, S., Roganova, T., Rogozhnikov, A., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Saputi, A., Sato, O., Savchenko, E. S., Schmidt-Parzefall, W., Serra, N., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shustov, A., Silverstein, S. B., Simone, S., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Starkov, N., Storaci, B., Strolin, P., Takahashi, S., Timiryasov, I., Tioukov, V., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Vilchinski, S., Villa, M., Vlasik, K., Volkov, A., Voronkov, R., Wanke, R., Woo, J. -K, Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., and Zaytsev, Yu.

Abstract

The SHiP experiment is designed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. An essential task for the experiment is to keep the Standard Model background level to less than 0.1 event after 2 x 10(20) protons on target. In the beam dump, around 10(11) muons will be produced per second. The muon rate in the spectrometer has to be reduced by at least four orders of magnitude to avoid muon-induced combinatorial background. A novel active muon shield is used to magnetically deflect the muons out of the acceptance of the spectrometer. This paper describes the basic principle of such a shield, its optimization and its performance.

Published
2017
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209. Discovery potential for directional Dark Matter detection with nuclear emulsions

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Asada, T., Ashikhmin, V. V., Bodnarchuk, I., Buonaura, A., Chernyavskii, M., Chukanov, A., D'Ambrosio, N., De Lellis, G., Di Crescenzo, A., Di Marco, N., Dmitrievski, S., Enikeev, R. I., Fini, R. A., Galati, G., Gentile, V., Gorbunov, S., Gornushkin, Y., Guler, A. M., Ichiki, H., Katsuragawa, T., Konovalova, N., Kuge, K., Lauria, A., Lee, K. Y., Lista, L., Malgin, A. S., Managadze, A., Monacelli, P., Montesi, M. C., Naka, T., Okateva, N., Park, B. D., Podgrudkov, D., Polukhina, N., Pupilli, F., Roganova, T., Rogozhnikov, A., Rosa, G., Ryazhskaya, O. G., Sato, O., Shakiryanova, I. R., Shchedrina, T., Sirignano, C., Sohn, J. Y., Sotnikov, A., Starkov, N., Strolin, P., Tioukov, V., Umemoto, A., Ustyuzhanin, A., Yoon, C. S., Yoshimoto, M., Vasina, S., Agafonova, N., Aleksandrov, A., Anokhina, A., Asada, T., Ashikhmin, V. V., Bodnarchuk, I., Buonaura, A., Chernyavskii, M., Chukanov, A., D'Ambrosio, N., De Lellis, G., Di Crescenzo, A., Di Marco, N., Dmitrievski, S., Enikeev, R. I., Fini, R. A., Galati, G., Gentile, V., Gorbunov, S., Gornushkin, Y., Guler, A. M., Ichiki, H., Katsuragawa, T., Konovalova, N., Kuge, K., Lauria, A., Lee, K. Y., Lista, L., Malgin, A. S., Managadze, A., Monacelli, P., Montesi, M. C., Naka, T., Okateva, N., Park, B. D., Podgrudkov, D., Polukhina, N., Pupilli, F., Roganova, T., Rogozhnikov, A., Rosa, G., Ryazhskaya, O. G., Sato, O., Shakiryanova, I. R., Shchedrina, T., Sirignano, C., Sohn, J. Y., Sotnikov, A., Starkov, N., Strolin, P., Tioukov, V., Umemoto, A., Ustyuzhanin, A., Yoon, C. S., Yoshimoto, M., and Vasina, S.

Abstract

Direct Dark Matter searches are nowadays one of the most fervid research topics with many experimental efforts devoted to the search for nuclear recoils induced by the scattering of Weakly Interactive Massive Particles (WIMPs). Detectors able to reconstruct the direction of the nucleus recoiling against the scattering WIMP are opening a new frontier to possibly extend Dark Matter searches beyond the neutrino background. Exploiting directionality would also prove the galactic origin of Dark Matter with an unambiguous signal-to-background separation. Indeed, the angular distribution of recoiled nuclei is centered around the direction of the Cygnus constellation, while the background distribution is expected to be isotropic. Current directional experiments are based on gas TPC whose sensitivity is limited by the small achievable detector mass. In this paper we present the discovery potential of a directional experiment based on the use of a solid target made of newly developed nuclear emulsions and of optical read-out systems reaching unprecedented nanometric resolution., Comment: 8 pages, 12 figures

Published
2017
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210. Study of tau-neutrino production at the CERN SPS

Author

Aoki, S., Ariga, A., Ariga, T., Firu, E., Fukuda, T., Gornushkin, Y., Guler, A. M., Haiduc, M., Kodama, K., Korkmaz, M. A., Kose, U., Nakamura, M., Nakano, T., Neagu, A. T., Rokujo, H., Sato, O., Vasina, S., Vladymyrov, M., Yoshimoto, M., Aoki, S., Ariga, A., Ariga, T., Firu, E., Fukuda, T., Gornushkin, Y., Guler, A. M., Haiduc, M., Kodama, K., Korkmaz, M. A., Kose, U., Nakamura, M., Nakano, T., Neagu, A. T., Rokujo, H., Sato, O., Vasina, S., Vladymyrov, M., and Yoshimoto, M.

Abstract

The DsTau project proposes to study tau-neutrino production in high-energy proton interactions. The outcome of this experiment are prerequisite for measuring the $\nu_\tau$ charged-current cross section that has never been well measured. Precisely measuring the cross section would enable testing of lepton universality in $\nu_\tau$ scattering and it also has practical implications for neutrino oscillation experiments and high-energy astrophysical $\nu_\tau$ observations. $D_s$ mesons, the source of tau neutrinos, following high-energy proton interactions will be studied by a novel approach to detect the double-kink topology of the decays $D_s \rightarrow \tau\nu_\tau$ and $\tau\rightarrow\nu_\tau X$. Directly measuring $D_s\rightarrow \tau$ decays will provide an inclusive measurement of the $D_s$ production rate and decay branching ratio to $\tau$. The momentum reconstruction of $D_s$ will be performed by combining topological variables. This project aims to detect 1,000 $D_s \rightarrow \tau$ decays in $2.3 \times 10^8$ proton interactions in tungsten target to study the differential production cross section of $D_s$ mesons. To achieve this, state-of-the-art emulsion detectors with a nanometric-precision readout will be used. The data generated by this project will enable the $\nu_\tau$ cross section from DONUT to be re-evaluated, and this should significantly reduce the total systematic uncertainty. Furthermore, these results will provide essential data for future $\nu_\tau$ experiments such as the $\nu_\tau$ program in the SHiP project at CERN. In addition, the analysis of $2.3 \times 10^8$ proton interactions, combined with the expected high yield of $10^5$ charmed decays as by-products, will enable the extraction of additional physical quantities., Comment: CERN-SPSC-2017-029 (SPSC-P-354)

Published
2017

211. The active muon shield in the SHiP experiment

Author

SHiP collaboration, Akmete, A., Alexandrov, A., Anokhina, A., Aoki, S., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Baranov, A., Barker, G. J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Boyarsky, A., Brenner, R., Breton, D., Brundler, R., Bruschi, M., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Campanelli, M., Chauveau, J., Chepurnov, A., Chernyavsky, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Dallavalle, G. M., D'Ambrosio, N., D'Appollonio, G., De Lellis, G., De Roeck, A., De Serio, M., Dedenko, L., Di Crescenzo, A., Di Marco, N., Dib, C., Dijkstra, H., Dmitrenko, V., Domenici, D., Donskov, S., Dubreuil, A., Ebert, J., Enik, T., Etenko, A., Fabbri, F., Fabbri, L., Fedin, O., Fedorova, G., Felici, G., Ferro-Luzzi, M., Fini, R. A., Fonte, P., Franco, C., Fukuda, T., Galati, G., Gavrilov, G., Gerlach, S., Golinka-Bezshyyko, L., Golubkov, D., Golutvin, A., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Graverini, E., Grichine, V., Guler, A. M., Guz, Yu., Hagner, C., Hakobyan, H., van Herwijnen, E., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Jacobsson, R., Jonker, M., Kadenko, I., Kamiscioglu, C., Kamiscioglu, M., Khabibullin, M., Khaustov, G., Khotyantsev, A., Kim, S. H., Kim, V., Kim, Y. G., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Konovalova, N., Korkmaz, M. A., Korol, I., Korol'ko, I., Korzenev, A., Kovalenko, S., Krasilnikova, I., Krivova, K., Kudenko, Y., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lai, A., Lanfranchi, G., Lantwin, O., Lauria, A., Lebbolo, H., Lee, K. Y., Lévy, J. -M., Likacheva, V., Lopes, L., Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Mefodev, A., Mermod, P., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Naganawa, N., Nakamura, M., Nakano, T., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Owen, P. H., Paoloni, A., Park, B. D., Paparella, L., Pastore, A., Patel, M., Pereyma, D., Petrenko, D., Petridis, K., Podgrudkov, D., Poliakov, V., Polukhina, N., Prokudin, M., Prota, A., Rademakers, A., Ratnikov, F., Rawlings, T., Razeti, M., Redi, F., Ricciardi, S., Roganova, T., Rogozhnikov, A., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Saputi, A., Sato, O., Savchenko, E. S., Schmidt-Parzefall, W., Serra, N., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shustov, A., Silverstein, S. B., Simone, S., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Starkov, N., Storaci, B., Strolin, P., Takahashi, S., Timiryasov, I., Tioukov, V., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Vilchinski, S., Villa, M., Vlasik, K., Volkov, A., Voronkov, R., Wanke, R., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., Zaytsev, Yu., SHiP collaboration, Akmete, A., Alexandrov, A., Anokhina, A., Aoki, S., Atkin, E., Azorskiy, N., Back, J. J., Bagulya, A., Baranov, A., Barker, G. J., Bay, A., Bayliss, V., Bencivenni, G., Berdnikov, A. Y., Berdnikov, Y. A., Bertani, M., Betancourt, C., Bezshyiko, I., Bezshyyko, O., Bick, D., Bieschke, S., Blanco, A., Boehm, J., Bogomilov, M., Bondarenko, K., Bonivento, W. M., Boyarsky, A., Brenner, R., Breton, D., Brundler, R., Bruschi, M., Büscher, V., Buonaura, A., Buontempo, S., Cadeddu, S., Calcaterra, A., Campanelli, M., Chauveau, J., Chepurnov, A., Chernyavsky, M., Choi, K. -Y., Chumakov, A., Ciambrone, P., Dallavalle, G. M., D'Ambrosio, N., D'Appollonio, G., De Lellis, G., De Roeck, A., De Serio, M., Dedenko, L., Di Crescenzo, A., Di Marco, N., Dib, C., Dijkstra, H., Dmitrenko, V., Domenici, D., Donskov, S., Dubreuil, A., Ebert, J., Enik, T., Etenko, A., Fabbri, F., Fabbri, L., Fedin, O., Fedorova, G., Felici, G., Ferro-Luzzi, M., Fini, R. A., Fonte, P., Franco, C., Fukuda, T., Galati, G., Gavrilov, G., Gerlach, S., Golinka-Bezshyyko, L., Golubkov, D., Golutvin, A., Gorbunov, D., Gorbunov, S., Gorkavenko, V., Gornushkin, Y., Gorshenkov, M., Grachev, V., Graverini, E., Grichine, V., Guler, A. M., Guz, Yu., Hagner, C., Hakobyan, H., van Herwijnen, E., Hollnagel, A., Hosseini, B., Hushchyn, M., Iaselli, G., Iuliano, A., Jacobsson, R., Jonker, M., Kadenko, I., Kamiscioglu, C., Kamiscioglu, M., Khabibullin, M., Khaustov, G., Khotyantsev, A., Kim, S. H., Kim, V., Kim, Y. G., Kitagawa, N., Ko, J. -W., Kodama, K., Kolesnikov, A., Kolev, D. I., Kolosov, V., Komatsu, M., Konovalova, N., Korkmaz, M. A., Korol, I., Korol'ko, I., Korzenev, A., Kovalenko, S., Krasilnikova, I., Krivova, K., Kudenko, Y., Kurochka, V., Kuznetsova, E., Lacker, H. M., Lai, A., Lanfranchi, G., Lantwin, O., Lauria, A., Lebbolo, H., Lee, K. Y., Lévy, J. -M., Likacheva, V., Lopes, L., Lyubovitskij, V., Maalmi, J., Magnan, A., Maleev, V., Malinin, A., Mefodev, A., Mermod, P., Mikado, S., Mikhaylov, Yu., Milstead, D. A., Mineev, O., Montanari, A., Montesi, M. C., Morishima, K., Movchan, S., Naganawa, N., Nakamura, M., Nakano, T., Novikov, A., Obinyakov, B., Ogawa, S., Okateva, N., Owen, P. H., Paoloni, A., Park, B. D., Paparella, L., Pastore, A., Patel, M., Pereyma, D., Petrenko, D., Petridis, K., Podgrudkov, D., Poliakov, V., Polukhina, N., Prokudin, M., Prota, A., Rademakers, A., Ratnikov, F., Rawlings, T., Razeti, M., Redi, F., Ricciardi, S., Roganova, T., Rogozhnikov, A., Rokujo, H., Rosa, G., Rovelli, T., Ruchayskiy, O., Ruf, T., Samoylenko, V., Saputi, A., Sato, O., Savchenko, E. S., Schmidt-Parzefall, W., Serra, N., Shakin, A., Shaposhnikov, M., Shatalov, P., Shchedrina, T., Shchutska, L., Shevchenko, V., Shibuya, H., Shustov, A., Silverstein, S. B., Simone, S., Skorokhvatov, M., Smirnov, S., Sohn, J. Y., Sokolenko, A., Starkov, N., Storaci, B., Strolin, P., Takahashi, S., Timiryasov, I., Tioukov, V., Tosi, N., Treille, D., Tsenov, R., Ulin, S., Ustyuzhanin, A., Uteshev, Z., Vankova-Kirilova, G., Vannucci, F., Venkova, P., Vilchinski, S., Villa, M., Vlasik, K., Volkov, A., Voronkov, R., Wanke, R., Woo, J. -K., Wurm, M., Xella, S., Yilmaz, D., Yilmazer, A. U., Yoon, C. S., and Zaytsev, Yu.

Abstract

The SHiP experiment is designed to search for very weakly interacting particles beyond the Standard Model which are produced in a 400 GeV/c proton beam dump at the CERN SPS. An essential task for the experiment is to keep the Standard Model background level to less than 0.1 event after $2\times 10^{20}$ protons on target. In the beam dump, around $10^{11}$ muons will be produced per second. The muon rate in the spectrometer has to be reduced by at least four orders of magnitude to avoid muon-induced combinatorial background. A novel active muon shield is used to magnetically deflect the muons out of the acceptance of the spectrometer. This paper describes the basic principle of such a shield, its optimization and its performance., Comment: 8 pages, 5 figures; added clarifications to the penalty function and emphasized that we care about neutrino interactions in the air

Published
2017
Full Text
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212. First neutrino event detection with nuclear emulsion at J-PARC neutrino beamline

Author

Fukuda, T., Aoki, S., Cao, S., Chikuma, N., Fukuzawa, Y., Gonin, M., Hayashino, T., Hayato, Y., Hiramoto, A., Hosomi, F., Ishiguro, K., Iori, S., Inoh, T., Kawahara, H., Kim, H., Kitagawa, N., Koga, T., Komatani, R., Komatsu, M., Matsushita, A., Mikado, S., Minamino, A., Mizusawa, H., Morishima, K., Matsuo, T., Matsumoto, T., Morimoto, Y., Morishita, M., Nakamura, K., Nakamura, M., Nakamura, Y., Naganawa, N., Nakano, T., Nakaya, T., Nakatsuka, Y., Nishio, A., Ogawa, S., Oshima, H., Quilain, B., Rokujo, H., Sato, O., Seiya, Y., Shibuya, H., Shiraishi, T., Suzuki, Y., Tada, S., Takahashi, S., Yamada, K., Yoshimoto, M., Yokoyama, M., Fukuda, T., Aoki, S., Cao, S., Chikuma, N., Fukuzawa, Y., Gonin, M., Hayashino, T., Hayato, Y., Hiramoto, A., Hosomi, F., Ishiguro, K., Iori, S., Inoh, T., Kawahara, H., Kim, H., Kitagawa, N., Koga, T., Komatani, R., Komatsu, M., Matsushita, A., Mikado, S., Minamino, A., Mizusawa, H., Morishima, K., Matsuo, T., Matsumoto, T., Morimoto, Y., Morishita, M., Nakamura, K., Nakamura, M., Nakamura, Y., Naganawa, N., Nakano, T., Nakaya, T., Nakatsuka, Y., Nishio, A., Ogawa, S., Oshima, H., Quilain, B., Rokujo, H., Sato, O., Seiya, Y., Shibuya, H., Shiraishi, T., Suzuki, Y., Tada, S., Takahashi, S., Yamada, K., Yoshimoto, M., and Yokoyama, M.

Abstract

Precise neutrino--nucleus interaction measurements in the sub-multi GeV region are important to reduce the systematic uncertainty in future neutrino oscillation experiments. Furthermore, the excess of ${\nu_e}$ interactions, as a possible interpretation of the existence of a sterile neutrino has been observed in such an energy region. The nuclear emulsion technique can measure all the final state particles with low energy threshold for a variety of targets (Fe, C, H${_2}$O, and so on). Its sub-$\mu$m position resolution allows measurements of the ${\nu_e}$ cross-section with good electron/gamma separation capability. We started a new experiment at J-PARC to study sub-multi GeV neutrino interactions by introducing the nuclear emulsion technique. The J-PARC T60 experiment has been implemented as a first step of such a project. Systematic neutrino event analysis with full scanning data in the nuclear emulsion detector was performed for the first time. The first neutrino event detection and its analysis is described in this paper., Comment: 26 pages, 29 figures, 4 table, prepared for submission to PTEP

Published
2017
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214. Decomposition

Author

Sato, O., Tezuka, Y., Koyama, T., Illies, J., editor, Furtado, J. I., editor, and Mori, S., editor

Published
1982
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217. Evidence for numu->nutau appearance in the CNGS neutrino beam with the OPERA experiment

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Autiero, D., Ben Dhahbi, A., Badertscher, A., Bender, D., Bertolin, Alessandro, Bozza, C., Brugnera, Riccardo, Brunet, F., Brunetti, G., Buonaura, A., Buontempo, S., Büttner, B., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Consiglio, L., D’Ambrosio, N., De Lellis, G., De Serio, M., Del Amo Sanchez, P., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, Stefano, Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Ferber, T., Ferone, G., Fini, R. . A., Fukuda, T., Galati, G., Garfagnini, Alberto, Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hakamata, K., Hara, T., Hayakawa, T., Hierholzer, M., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Ishikawa, M., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawada, J., Kawahara, H., Kim, J. . H., Kim, S. . H., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., MEDINACELI VILLEGAS, Eduardo, Meregaglia, A., Migliozzi, P., Mikado, S., Miyanishi, M., Miyashita, E., Monacelli, P., Montesi, M. . C., Morishima, K., Muciaccia, M. . T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. . D., Park, I. . G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, Marco, Rokujo, H., Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt Parzefal, W., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, Chiara, Sirri, G., Spinetti, M., Stanco, Luca, Starkov, N., Stellacci, S. . M., Stipcevic, M., Strauss, T., Strolin, P., Suzuki, K., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. . L., Wilquet, G., Wonsak, B., Yoon, C. . S., Yoshida, J., Yoshimoto, M., Zaitsev, Y., Zemskova, S., Zghiche, A., Agafonova, N, Aleksandrov, A, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Asada, T, Autiero, D, Ben Dhahbi, A, Badertscher, A, Bender, D, Bertolin, A, Bozza, C, Brugnera, R, Brunet, F, Brunetti, G, Buonaura, A, Buontempo, S, Büttner, B, Chaussard, L, Chernyavsky, M, Chiarella, V, Chukanov, A, Consiglio, L, D'Ambrosio, N, De Lellis, G, De Serio, M, Del Amo Sanchez, P, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Dmitrievski, S, Dracos, M, Duchesneau, D, Dusini, S, Dzhatdoev, T, Ebert, J, Ereditato, A, Favier, J, Ferber, T, Ferone, G, Fini, R, Fukuda, T, Galati, G, Garfagnini, A, Giacomelli, G, Goellnitz, C, Goldberg, J, Gornushkin, Y, Grella, G, Grianti, F, Guler, M, Gustavino, C, Hagner, C, Hakamata, K, Hara, T, Hayakawa, T, Hierholzer, M, Hollnagel, A, Hosseini, B, Ishida, H, Ishiguro, K, Ishikawa, M, Jakovcic, K, Jollet, C, Kamiscioglu, C, Kamiscioglu, M, Katsuragawa, T, Kawada, J, Kawahara, H, Kim, J, Kim, S, Kimura, M, Kitagawa, N, Klicek, B, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Lauria, A, Lenkeit, J, Ljubicic, A, Longhin, A, Loverre, P, Malgin, A, Mandrioli, G, Marteau, J, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meregaglia, A, Migliozzi, P, Mikado, S, Miyanishi, M, Miyashita, E, Monacelli, P, Montesi, M, Morishima, K, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nakatsuka, Y, Niwa, K, Ogawa, S, Okateva, N, Olshevsky, A, Omura, T, Ozaki, K, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pistillo, C, Podgrudkov, D, Polukhina, N, Pozzato, M, Pretzl, K, Pupilli, F, Rescigno, R, Roda, M, Rokujo, H, Roganova, T, Rosa, G, Rostovtseva, I, Rubbia, A, Ryazhskaya, O, Sato, O, Sato, Y, Schembri, A, Schmidt-Parzefal, W, Shakiryanova, I, Shchedrina, T, Sheshukov, A, Shibuya, H, Shiraishi, T, Shoziyoev, G, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Spinetti, M, Stanco, L, Starkov, N, Stellacci, S, Stipcevic, M, Strauss, T, Strolin, P, Suzuki, K, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Tufanli, S, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yoon, C, Yoshida, J, Yoshimoto, M, Zaitsev, Y, Zemskova, S, and Zghiche, A

Subjects
neutrino
Abstract

The OPERA experiment is designed to search for νμ→ντ oscillations in appearance mode, i.e., through the direct observation of the τ lepton in ντ-charged current interactions. The experiment has taken data for five years, since 2008, with the CERN Neutrino to Gran Sasso beam. Previously, two ντ candidates with a τ decaying into hadrons were observed in a subsample of data of the 2008-2011 runs. Here we report the observation of a third ντ candidate in the τ-→μ- decay channel coming from the analysis of a subsample of the 2012 run. Taking into account the estimated background, the absence of νμ→ντ oscillations is excluded at the 3.4σ level. © 2014 American Physical Society.

Published
2014

218. Measurement of the TeV atmospheric muon charge ratio with the complete OPERA data set

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Büttner, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D’Ambrosio, N., De Lellis, G., De Serio, M., Del Amo Sanchez, P., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R.A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Göllnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Guler, M., Gustavino, C., Hagner, C., Hara, T., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kawada, J., Kim, J.H., Kim, S.H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Malenica, M., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Monacelli, P., Montesi, M.C., Morishima, K., Muciaccia, M.T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B.D., Park, I.G., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S.M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J.L., Wilquet, G., Wonsak, B., Yoon, C.S., Zemskova, S., Zghiche, A., N., Agafonova, Aleksandrov, A., A., Anokhina, S., Aoki, A., Ariga, T., Ariga, D., Bender, A., Bertolin, C., Bozza, R., Brugnera, Buonaura, Annarita, S., Buontempo, B., B?ttner, M., Chernyavsky, A., Chukanov, L., Consiglio, N., D?ambrosio, DE LELLIS, Giovanni, M., De Serio, P., Del Amo Sanchez, DI CRESCENZO, Antonia, D., Di Ferdinando, N., Di Marco, S., Dmitrievski, M., Draco, D., Duchesneau, S., Dusini, T., Dzhatdoev, J., Ebert, A., Ereditato, R. A., Fini, T., Fukuda, Galati, Giuliana, A., Garfagnini, G., Giacomelli, C., G?llnitz, J., Goldberg, Y., Gornushkin, G., Grella, M., Guler, C., Gustavino, C., Hagner, T., Hara, A., Hollnagel, Hosseini, Behzad, H., Ishida, K., Ishiguro, K., Jakovcic, C., Jollet, C., Kamiscioglu, M., Kamiscioglu, J., Kawada, J. H., Kim, S. H., Kim, N., Kitagawa, B., Klicek, K., Kodama, M., Komatsu, U., Kose, I., Kreslo, Lauria, Adele, J., Lenkeit, A., Ljubicic, A., Longhin, P., Loverre, A., Malgin, M., Malenica, G., Mandrioli, T., Matsuo, V., Matveev, N., Mauri, E., Medinaceli, A., Meregaglia, S., Mikado, P., Monacelli, Montesi, MARIA CRISTINA, K., Morishima, M. T., Muciaccia, N., Naganawa, T., Naka, M., Nakamura, T., Nakano, Y., Nakatsuka, K., Niwa, S., Ogawa, N., Okateva, A., Olshevsky, T., Omura, K., Ozaki, A., Paoloni, B. D., Park, I. G., Park, L., Pasqualini, A., Pastore, L., Patrizii, H., Pessard, C., Pistillo, D., Podgrudkov, N., Polukhina, M., Pozzato, F., Pupilli, M., Roda, H., Rokujo, T., Roganova, G., Rosa, O., Ryazhskaya, O., Sato, A., Schembri, I., Shakiryanova, T., Shchedrina, A., Sheshukov, H., Shibuya, T., Shiraishi, G., Shoziyoev, S., Simone, M., Sioli, C., Sirignano, G., Sirri, M., Spinetti, L., Stanco, N., Starkov, S. M., Stellacci, M., Stipcevic, P., Strolin, S., Takahashi, M., Tenti, F., Terranova, V., Tioukov, S., Tufanli, P., Vilain, M., Vladimirov, L., Votano, J. L., Vuilleumier, G., Wilquet, B., Wonsak, C. S., Yoon, S., Zemskova, A., Zghiche, Agafonova, N, Aleksandrov, A, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Bender, D, Bertolin, A, Bozza, C, Brugnera, R, Buonaura, A, Buontempo, S, Büttner, B, Chernyavsky, M, Chukanov, A, Consiglio, L, D’Ambrosio, N, De Lellis, G, De Serio, M, Del Amo Sanchez, P, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Dmitrievski, S, Dracos, M, Duchesneau, D, Dusini, S, Dzhatdoev, T, Ebert, J, Ereditato, A, Fini, R, Fukuda, T, Galati, G, Garfagnini, A, Giacomelli, G, Göllnitz, C, Goldberg, J, Gornushkin, Y, Grella, G, Guler, M, Gustavino, C, Hagner, C, Hara, T, Hollnagel, A, Hosseini, B, Ishida, H, Ishiguro, K, Jakovcic, K, Jollet, C, Kamiscioglu, C, Kamiscioglu, M, Kawada, J, Kim, J, Kim, S, Kitagawa, N, Klicek, B, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Lauria, A, Lenkeit, J, Ljubicic, A, Longhin, A, Loverre, P, Malgin, A, Malenica, M, Mandrioli, G, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meregaglia, A, Mikado, S, Monacelli, P, Montesi, M, Morishima, K, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nakatsuka, Y, Niwa, K, Ogawa, S, Okateva, N, Olshevsky, A, Omura, T, Ozaki, K, Paoloni, A, Park, B, Park, I, Pasqualini, L, Pastore, A, Patrizii, L, Pessard, H, Pistillo, C, Podgrudkov, D, Polukhina, N, Pozzato, M, Pupilli, F, Roda, M, Rokujo, H, Roganova, T, Rosa, G, Ryazhskaya, O, Sato, O, Schembri, A, Shakiryanova, I, Shchedrina, T, Sheshukov, A, Shibuya, H, Shiraishi, T, Shoziyoev, G, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Spinetti, M, Stanco, L, Starkov, N, Stellacci, S, Stipcevic, M, Strolin, P, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Tufanli, S, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yoon, C, Zemskova, S, Zghiche, A, N. Agafonova, A. Aleksandrov, A. Anokhina, S. Aoki, A. Ariga, T. Ariga, D. Bender, A. Bertolin, C. Bozza, R. Brugnera, A. Buonaura, S. Buontempo, B. Buettner, M. Chernyavsky, A. Chukanov, L. Consiglio, N. D'Ambrosio, G. D. Lelli, M. D. Serio, P. D. Amo, A. D. Crescenzo, D. D. Ferdinando, N. D. Marco, S. Dmitrievski, M. Draco, D. Duchesneau, S. Dusini, T. Dzhatdoev, J. Ebert, A. Ereditato, R. A. Fini, T. Fukuda, G. Galati, A. Garfagnini, G. Giacomelli, C. Goellnitz, J. Goldberg, Y. Gornushkin, G. Grella, M. Guler, C. Gustavino, C. Hagner, T. Hara, A. Hollnagel, B. Hosseini, H. Ishida, K. Ishiguro, K. Jakovcic, C. Jollet, C. Kamiscioglu, M. Kamiscioglu, J. Kawada, J. H. Kim, S. H. Kim, N. Kitagawa, B. Klicek, K. Kodama, M. Komatsu, U. Kose, I. Kreslo, A. Lauria, J. Lenkeit, A. Ljubicic, A. Longhin, P. Loverre, A. Malgin, M. Malenica, G. Mandrioli, T. Matsuo, V. Matveev, N. Mauri, E. Medinaceli, A. Meregaglia, S. Mikado, P. Monacelli, M. C. Montesi, K. Morishima, M. T. Muciaccia, N. Naganawa, T. Naka, M. Nakamura, T. Nakano, Y. Nakatsuka, K. Niwa, S. Ogawa, N. Okateva, A. Olshevsky, T. Omura, K. Ozaki, A. Paoloni, B. D. Park, I. G. Park, L. Pasqualini, A. Pastore, L. Patrizii, H. Pessard, C. Pistillo, D. Podgrudkov, N. Polukhina, M. Pozzato, F. Pupilli, M. Roda, H. Rokujo, T. Roganova, G. Rosa, O. Ryazhskaya, O. Sato, A. Schembri, I. Shakiryanova, T. Shchedrina, A. Sheshukov, H. Shibuya, T. Shiraishi, G. Shoziyoev, S. Simone, M. Sioli, C. Sirignano, G. Sirri, M. Spinetti, L. Stanco, N. Starkov, S. M. Stellacci, M. Stipcevic, P. Strolin, S. Takahashi, M. Tenti, F. Terranova, V. Tioukov, S. Tufanli, P. Vilain, M. Vladimirov, L. Votano, J. L. Vuilleumier, G. Wilquet, B. Wonsak, C. S. Yoon, S. Zemskova, and A. Zghiche

Subjects
ratio, cosmic-ray muons, Physics and Astronomy (miscellaneous), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, OPERA, spectrum, atmospheric, muon, charge, MUON SPECTROMETER, cosmic rays, UNDERGROUND PHYSICS, oscillation, neutrino detectors and telescopes, High Energy Physics::Experiment, Engineering (miscellaneous), ATMOSPHERIC MUONS
Abstract

The OPERA detector, designed to search for nu(mu) -> nu(tau) oscillations in the CNGS beam, is located in the underground Gran Sasso laboratory, a privileged location to study TeV-scale cosmic rays. For the analysis here presented, the detector was used to measure the atmospheric muon charge ratio in the TeV region. OPERA collected charge-separated cosmic ray data between 2008 and 2012. More than 3 million atmospheric muon events were detected and reconstructed, among which about 110000 multiple muon bundles. The charge ratio R-mu = N-mu+/N-mu- was measured separately for single and for multiple muon events. The analysis exploited the inversion of the magnet polarity which was performed on purpose during the 2012 Run. The combination of the two data sets with opposite magnet polarities allowed minimizing systematic uncertainties and reaching an accurate determination of the muon charge ratio. Data were fitted to obtain relevant parameters on the composition of primary cosmic rays and the associated kaon production in the forward fragmentation region. In the surface energy range 1-20 TeV investigated by OPERA, R-mu is well described by a parametric model including only pion and kaon contributions to themuon flux, showing no significant contribution of the prompt component. The energy independence supports the validity of Feynman scaling in the fragmentation region up to 200 TeV/nucleon primary energy.

Published
2014

219. Study of tau-neutrino production by measuring Ds -> tau events in 400 GeV proton interactions: Test of lepton universality in neutrino charged-current interactions

Author

Aoki, S, Ariga, A, Ariga, T, Kodama, K, Nakamura, M, and Sato, O

Subjects
High Energy Physics::Experiment, Detectors and Experimental Techniques
Abstract

The muon-neutrino charged-current (CC) cross section has been measured by many experiments. However, there has been only one measurement of the tau-neutrino CC cross section by the DONuT experiment with a systematic uncertainty larger than 50%, mainly due to uncertainties in the Ds differential production cross section in high energy proton interaction. The evaluation of the tau-neutrino cross section would provide a test of lepton universality in neutrino CC interactions, which has never been well tested for tau-neutrinos. In this new program, we propose to study tau-neutrino production (Ds production fraction x decay branching ratio of Ds -> tau) and the energy distribution by analyzing Ds -> tau events in 400 GeV proton interactions. By employing the state-of-the-art emulsion particle detector technologies, we will analyze 10^8 proton interactions and detect the double kink topology of Ds -> tau -> X decays. Accomplishing this new measurement, we will re-evaluate the tau-neutrino cross section with the data from DONuT. The expected outcome will significantly reduce the total systematic uncertainty to the 10% level, which is well below the statistical uncertainty of DONuT. In 2016, we will perform a prototype test experiment with 20 m^2 emulsion surface, corresponding to a scale of about 1:20 of the final setup. This test will provide a proof of principle and the results will be used to optimize the module structure. We plan to carry out the first run of the real experiment in 2018.

Published
2016

224. First neutrino event detection with nuclear emulsion at J-PARC neutrino beamline

Author

Fukuda, T., primary, Aoki, S., additional, Cao, S., additional, Chikuma, N., additional, Fukuzawa, Y., additional, Gonin, M., additional, Hayashino, T., additional, Hayato, Y., additional, Hiramoto, A., additional, Hosomi, F., additional, Ishiguro, K., additional, Iori, S., additional, Inoh, T., additional, Kawahara, H., additional, Kim, H., additional, Kitagawa, N., additional, Koga, T., additional, Komatani, R., additional, Komatsu, M., additional, Matsushita, A., additional, Mikado, S., additional, Minamino, A., additional, Mizusawa, H., additional, Morishima, K., additional, Matsuo, T., additional, Matsumoto, T., additional, Morimoto, Y., additional, Morishita, M., additional, Nakamura, K., additional, Nakamura, M., additional, Nakamura, Y., additional, Naganawa, N., additional, Nakano, T., additional, Nakaya, T., additional, Nakatsuka, Y., additional, Nishio, A., additional, Ogawa, S., additional, Oshima, H., additional, Quilain, B., additional, Rokujo, H., additional, Sato, O., additional, Seiya, Y., additional, Shibuya, H., additional, Shiraishi, T., additional, Suzuki, Y., additional, Tada, S., additional, Takahashi, S., additional, Yamada, K., additional, Yoshimoto, M., additional, and Yokoyama, M., additional

Published
2017
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225. First demonstration of an emulsion multi-stage shifter for accelerator neutrino experiments in J-PARC T60

Author

Yamada, K., primary, Aoki, S., additional, Cao, S., additional, Chikuma, N., additional, Fukuda, T., additional, Fukuzawa, Y., additional, Gonin, M., additional, Hayashino, T., additional, Hayato, Y., additional, Hiramoto, A., additional, Hosomi, F., additional, Inoh, T., additional, Iori, S., additional, Ishiguro, K., additional, Kawahara, H., additional, Kim, H., additional, Kitagawa, N., additional, Koga, T., additional, Komatani, R., additional, Komatsu, M., additional, Matsushita, A., additional, Mikado, S., additional, Minamino, A., additional, Mizusawa, H., additional, Matsumoto, T., additional, Matsuo, T., additional, Morimoto, Y., additional, Morishima, K., additional, Morishita, M., additional, Naganawa, N., additional, Nakamura, K., additional, Nakamura, M., additional, Nakamura, Y., additional, Nakano, T., additional, Nakatsuka, Y., additional, Nakaya, T., additional, Nishio, A., additional, Ogawa, S., additional, Oshima, H., additional, Quilain, B., additional, Rokujo, H., additional, Sato, O., additional, Seiya, Y., additional, Shibuya, H., additional, Shiraishi, T., additional, Suzuki, Y., additional, Tada, S., additional, Takahashi, S., additional, Yokoyama, M., additional, and Yoshimoto, M., additional

Published
2017
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226. The active muon shield in the SHiP experiment

Author

Akmete, A., primary, Alexandrov, A., additional, Anokhina, A., additional, Aoki, S., additional, Atkin, E., additional, Azorskiy, N., additional, Back, J.J., additional, Bagulya, A., additional, Baranov, A., additional, Barker, G.J., additional, Bay, A., additional, Bayliss, V., additional, Bencivenni, G., additional, Berdnikov, A.Y., additional, Berdnikov, Y.A., additional, Bertani, M., additional, Betancourt, C., additional, Bezshyiko, I., additional, Bezshyyko, O., additional, Bick, D., additional, Bieschke, S., additional, Blanco, A., additional, Boehm, J., additional, Bogomilov, M., additional, Bondarenko, K., additional, Bonivento, W.M., additional, Boyarsky, A., additional, Brenner, R., additional, Breton, D., additional, Brundler, R., additional, Bruschi, M., additional, Büscher, V., additional, Buonaura, A., additional, Buontempo, S., additional, Cadeddu, S., additional, Calcaterra, A., additional, Campanelli, M., additional, Chauveau, J., additional, Chepurnov, A., additional, Chernyavsky, M., additional, Choi, K.-Y., additional, Chumakov, A., additional, Ciambrone, P., additional, Dallavalle, G.M., additional, D'Ambrosio, N., additional, D'Appollonio, G., additional, Lellis, G. De, additional, Roeck, A. De, additional, Serio, M. De, additional, Dedenko, L., additional, Crescenzo, A. Di, additional, Marco, N. Di, additional, Dib, C., additional, Dijkstra, H., additional, Dmitrenko, V., additional, Domenici, D., additional, Donskov, S., additional, Dubreuil, A., additional, Ebert, J., additional, Enik, T., additional, Etenko, A., additional, Fabbri, F., additional, Fabbri, L., additional, Fedin, O., additional, Fedorova, G., additional, Felici, G., additional, Ferro-Luzzi, M., additional, Fini, R.A., additional, Fonte, P., additional, Franco, C., additional, Fukuda, T., additional, Galati, G., additional, Gavrilov, G., additional, Gerlach, S., additional, Golinka-Bezshyyko, L., additional, Golubkov, D., additional, Golutvin, A., additional, Gorbunov, D., additional, Gorbunov, S., additional, Gorkavenko, V., additional, Gornushkin, Y., additional, Gorshenkov, M., additional, Grachev, V., additional, Graverini, E., additional, Grichine, V., additional, Guler, A. M., additional, Guz, Yu., additional, Hagner, C., additional, Hakobyan, H., additional, Herwijnen, E. van, additional, Hollnagel, A., additional, Hosseini, B., additional, Hushchyn, M., additional, Iaselli, G., additional, Iuliano, A., additional, Jacobsson, R., additional, Jonker, M., additional, Kadenko, I., additional, Kamiscioglu, C., additional, Kamiscioglu, M., additional, Khabibullin, M., additional, Khaustov, G., additional, Khotyantsev, A., additional, Kim, S.H., additional, Kim, V., additional, Kim, Y.G., additional, Kitagawa, N., additional, Ko, J.-W., additional, Kodama, K., additional, Kolesnikov, A., additional, Kolev, D.I., additional, Kolosov, V., additional, Komatsu, M., additional, Konovalova, N., additional, Korkmaz, M.A., additional, Korol, I., additional, Korol'ko, I., additional, Korzenev, A., additional, Kovalenko, S., additional, Krasilnikova, I., additional, Krivova, K., additional, Kudenko, Y., additional, Kurochka, V., additional, Kuznetsova, E., additional, Lacker, H.M., additional, Lai, A., additional, Lanfranchi, G., additional, Lantwin, O., additional, Lauria, A., additional, Lebbolo, H., additional, Lee, K.Y., additional, Lévy, J.-M., additional, Lopes, L., additional, Lyubovitskij, V., additional, Maalmi, J., additional, Magnan, A., additional, Maleev, V., additional, Malinin, A., additional, Mefodev, A., additional, Mermod, P., additional, Mikado, S., additional, Mikhaylov, Yu., additional, Milstead, D.A., additional, Mineev, O., additional, Montanari, A., additional, Montesi, M.C., additional, Morishima, K., additional, Movchan, S., additional, Naganawa, N., additional, Nakamura, M., additional, Nakano, T., additional, Novikov, A., additional, Obinyakov, B., additional, Ogawa, S., additional, Okateva, N., additional, Owen, P.H., additional, Paoloni, A., additional, Park, B.D., additional, Paparella, L., additional, Pastore, A., additional, Patel, M., additional, Pereyma, D., additional, Petrenko, D., additional, Petridis, K., additional, Podgrudkov, D., additional, Poliakov, V., additional, Polukhina, N., additional, Prokudin, M., additional, Prota, A., additional, Rademakers, A., additional, Ratnikov, F., additional, Rawlings, T., additional, Razeti, M., additional, Redi, F., additional, Ricciardi, S., additional, Roganova, T., additional, Rogozhnikov, A., additional, Rokujo, H., additional, Rosa, G., additional, Rovelli, T., additional, Ruchayskiy, O., additional, Ruf, T., additional, Samoylenko, V., additional, Saputi, A., additional, Sato, O., additional, Savchenko, E.S., additional, Schmidt-Parzefall, W., additional, Serra, N., additional, Shakin, A., additional, Shaposhnikov, M., additional, Shatalov, P., additional, Shchedrina, T., additional, Shchutska, L., additional, Shevchenko, V., additional, Shibuya, H., additional, Shustov, A., additional, Silverstein, S.B., additional, Simone, S., additional, Skorokhvatov, M., additional, Smirnov, S., additional, Sohn, J.Y., additional, Sokolenko, A., additional, Starkov, N., additional, Storaci, B., additional, Strolin, P., additional, Takahashi, S., additional, Timiryasov, I., additional, Tioukov, V., additional, Tosi, N., additional, Treille, D., additional, Tsenov, R., additional, Ulin, S., additional, Ustyuzhanin, A., additional, Uteshev, Z., additional, Vankova-Kirilova, G., additional, Vannucci, F., additional, Venkova, P., additional, Vilchinski, S., additional, Villa, M., additional, Vlasik, K., additional, Volkov, A., additional, Voronkov, R., additional, Wanke, R., additional, Woo, J.-K., additional, Wurm, M., additional, Xella, S., additional, Yilmaz, D., additional, Yilmazer, A.U., additional, Yoon, C.S., additional, and Zaytsev, Yu., additional

Published
2017
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227. The Foot (Fragmentation Of Target) Experiment

Author

Patera, Vincenzo, primary, Argiro, Stefano, additional, Barbosa, D., additional, Battistoni, G., additional, Belcari, N., additional, Bruni, G., additional, Bisogni, Maria Giuseppina, additional, Brambilla, S., additional, Camarlinghi, N., additional, Cerello, P., additional, Ciarrocchi, E., additional, Clozza, A., additional, De Lellis, G., additional, Di Crescenzo, A., additional, Durante, M., additional, Faccini, R., additional, Ferrero, V., additional, Ferroni, F., additional, Fioralelli, M., additional, Franchini, M., additional, Garbini, M., additional, Giraudo, G., additional, Hild, S., additional, Iacomino, A., additional, Lotti, J., additional, La Tessa, C., additional, Lauria, A., additional, Mattei, I., additional, Marafini, M., additional, Morrocchi, M., additional, Muraro, S., additional, Narici, L., additional, Paramatti, Riccardo, additional, Pastrone, N., additional, Peroni, C., additional, Ramello, L., additional, Rosso, V., additional, Rovituso, M., additional, Sanelli, C., additional, Salvatore, M., additional, Sarti, A., additional, Sartorelli, G., additional, Sato, O., additional, Schiavi, A., additional, Scifoni, E., additional, Sciubba, A., additional, Selvi, M., additional, Servoli, L., additional, Sitta, M., additional, Spighi, R., additional, Spinnato, P., additional, Spiriti, E., additional, Sportelli, G., additional, Testa, M., additional, Tioukov, V., additional, Tommasino, F., additional, Traini, G., additional, Zoccoli, A., additional, Valle, S., additional, and Villa, M. S., additional

Published
2017
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228. WIMP tracking with cryogenic nuclear emulsion

Author

Kimura, M., primary, Naka, T., additional, Furuya, S., additional, Asada, T., additional, Katsuragawa, T., additional, Yoshimoto, M., additional, Umemoto, A., additional, Machii, S., additional, Ichiki, H., additional, Sato, O., additional, and Hoshino, Y., additional

Published
2017
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230. The signature of mesoscale eddies on the air-sea turbulent heat fluxes in the South Atlantic Ocean

Author

Boas, A. B. V., Sato, O. T., Chaigneau, Alexis, and Castelao, G. P.

Subjects
Physics::Fluid Dynamics, South Atlantic, satellite oceanography, mesoscale eddies, surface turbulent heat fluxes, air-sea interactions, Physics::Atmospheric and Oceanic Physics
Abstract

By collocating 10 years (1999-2009) of remotely sensed surface turbulent heat fluxes with satellite altimetry data, we investigate the impact of oceanic mesoscale eddies on the latent and sensible heat fluxes in the South Atlantic Ocean. In strongly energetic regions, such as the Brazil-Malvinas confluence and the Agulhas Current Retroflection, eddies explain up to 20% of the total variance in the surface turbulent heat fluxes with averaged anomalies of (10-20) W/m(2). Cyclonic (anticyclonic, respectively) eddies are associated with negative (positive) heat flux anomalies that tend to cool (warm) the marine atmospheric boundary layer. A composite analysis of the turbulent heat flux anomalies inside the eddies reveals a direct relationship between eddy amplitude and the intensity of such anomalies. In addition, these anomalies are stronger near the eddy center, decaying radially to reach minimum values outside the eddies.

Published
2015

231. Measurement of 12C Fragmentation Cross Sections on C, O, and H in the Energy Range of Interest for Particle Therapy Applications

Author

Mattei, I., Bisogni, M. G., Bruni, G., Camarlinghi, N., Carra, P., Catanzani, E., Ciarrocchi, E., Cerello, P., Clozza, A., Colombi, S., De Lellis, G., Alexandrov, A., Del Guerra, A., De Simoni, M., Di Crescenzo, A., Donetti, M., Dong, Y., Durante, M., Embriaco, A., Emde, M., Faccini, R., Ferrero, V., Alunni Solestizi, L., Ferroni, F., Fiandrini, E., Finck, C., Fiorina, E., Fischetti, M., Francesconi, M., Franchini, M., Galli, L., Gentile, V., Hetzel, R., Ambrosi, G., Hild, S., Iarocci, E., Ionica, M., Kanxheri, K., Kraan, A. C., Lante, V., Lauria, A., La Tessa, C., Lopez Torres, E., Massimi, C., Argiro, S., Marafini, M., Mengarelli, A., Mirabelli, R., Montesi, M. C., Morone, M. C., Morrocchi, M., Muraro, S., Narici, L., Pastore, A., Pastrone, N., Bartosik, N., Patera, V., Pennazio, F., Placidi, P., Pullia, M., Ramello, L., Ridolfi, R., Rosso, V., Rovituso, M., Sanelli, C., Sartorelli, G., Battistoni, G., Sato, O., Savazzi, S., Scavarda, L., Schiavi, A., Schuy, C., Scifoni, E., Sciubba, A., Secher, A., Selvi, M., Servoli, L., Belcari, N., Silvestre, G., Sitta, M., Spighi, R., Spiriti, E., Sportelli, G., Stahl, A., Tomassini, S., Tommasino, F., Traini, G., Toppi, M., Biondi, S., Valeri, T., Valle, S. M., Vanstalle, M., Villa, M., Weber, U., Zoccoli, A., and Sarti, A.

Abstract

In a carbon ion treatment the nuclear fragmentation of both target and beam projectiles impacts on the dose released on the tumor and on the surrounding healthy tissues. Carbon ion fragmentation occurring inside the patient body has to be studied in order to take into account this contribution. These data are also important for the development of the range monitoring techniques with charged particles. The production of charged fragments generated by carbon ion beams of 115–353 MeV/u kinetic energy impinging on carbon, oxygen, and hydrogen targets has been measured at the CNAO particle therapy center (Pavia, Italy). The use of thin targets of graphite (C), PMMA (C2O5H8) and polyvinyl-toluene [plastic scintillator (PS), ${\text{C}}_{b}{\text{H}}_{a}$ ] allowed to measure fragments production cross sections, exploiting a time-of-flight (ToF) technique. PS detectors have been used to perform the ToF measurements, while LYSO crystals have been used for the deposited energy measurement and to perform particle identification. Cross sections have been measured at 90° and 60° with respect to the beam direction. The measured proton, deuteron, and triton differential production cross sections on C, O, and H, obtained exploiting the target subtraction strategy, are presented here as a function of the fragment kinetic energy.

Published
2020
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232. Measurement of low-energy neutrino cross-sections with the PEANUT experiment

Author

Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Besnier, M, Bozza, C, Buontempo, S, Carrara, E, Consiglio, L, Cozzi, M, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Duchesneau, D, Ereditato, A, Esposito, L, Fukuda, T, Giacomelli, G, Giorgini, M, Grella, G, Hamada, K, Ieva, M, Juget, F, Kitagawa, N, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Longhin, A, Lundberg, B, Lutter, G, Mandrioli, G, Marotta, A, Meisel, F, Migliozzi, P, Morishima, K, Muciaccia, M, Naganawa, N, Nakamura, M, Nakano, T, Niwa, K, Nonoyama, Y, Paolone, V, Pastore, A, Patrizii, L, Pistillo, C, Pozzato, M, Pupilli, F, Rameika, R, Rescigno, R, Rosa, G, Russo, A, Sato, O, Lavina, L, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Strolin, P, Tenti, M, Tioukov, V, Yoshida, J, Yoshioka, T, Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Besnier, M., Bozza, C., Buontempo, S., Carrara, E., Consiglio, L., Cozzi, M., D'Ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Duchesneau, D., Ereditato, A., Esposito, L. S., Fukuda, T., Giacomelli, G., Giorgini, M., Grella, G., Hamada, K., Ieva, M., Juget, F., Kitagawa, N., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Longhin, A., Lundberg, B., Lutter, G., Mandrioli, G., Marotta, A., Meisel, F., Migliozzi, P., Morishima, K., Muciaccia, M. T., Naganawa, N., Nakamura, M., Nakano, T., Niwa, K., Nonoyama, Y., Paolone, V., Pastore, A., Patrizii, L., Pistillo, C., Pozzato, M., Pupilli, F., Rameika, R., Rescigno, R., Rosa, G., Russo, A., Sato, O., Lavina, L. Scotto., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Strolin, P., Tenti, M., Tioukov, V., Yoshida, J., Yoshioka, T., Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Besnier, M, Bozza, C, Buontempo, S, Carrara, E, Consiglio, L, Cozzi, M, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Crescenzo, A, Di Ferdinando, D, Di Marco, N, Duchesneau, D, Ereditato, A, Esposito, L, Fukuda, T, Giacomelli, G, Giorgini, M, Grella, G, Hamada, K, Ieva, M, Juget, F, Kitagawa, N, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Longhin, A, Lundberg, B, Lutter, G, Mandrioli, G, Marotta, A, Meisel, F, Migliozzi, P, Morishima, K, Muciaccia, M, Naganawa, N, Nakamura, M, Nakano, T, Niwa, K, Nonoyama, Y, Paolone, V, Pastore, A, Patrizii, L, Pistillo, C, Pozzato, M, Pupilli, F, Rameika, R, Rescigno, R, Rosa, G, Russo, A, Sato, O, Lavina, L, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Strolin, P, Tenti, M, Tioukov, V, Yoshida, J, Yoshioka, T, Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Besnier, M., Bozza, C., Buontempo, S., Carrara, E., Consiglio, L., Cozzi, M., D'Ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Duchesneau, D., Ereditato, A., Esposito, L. S., Fukuda, T., Giacomelli, G., Giorgini, M., Grella, G., Hamada, K., Ieva, M., Juget, F., Kitagawa, N., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Longhin, A., Lundberg, B., Lutter, G., Mandrioli, G., Marotta, A., Meisel, F., Migliozzi, P., Morishima, K., Muciaccia, M. T., Naganawa, N., Nakamura, M., Nakano, T., Niwa, K., Nonoyama, Y., Paolone, V., Pastore, A., Patrizii, L., Pistillo, C., Pozzato, M., Pupilli, F., Rameika, R., Rescigno, R., Rosa, G., Russo, A., Sato, O., Lavina, L. Scotto., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Strolin, P., Tenti, M., Tioukov, V., Yoshida, J., and Yoshioka, T.

Abstract

The PEANUT experiment was designed to study the NuMi neutrino beam at Fermilab. The detector uses a hybrid technique, being made of nuclear emulsions and scintillator trackers. Emulsion films act as a micrometric tracking device and are interleaved with lead plates used as passive material. The detector is designed to precisely reconstruct the topology of neutrino interactions and hence to measure the different contributions to the cross section. We present here the full reconstruction and analysis of 147 neutrino interactions and the measurement of the quasi-elastic, resonance and deep-inelastic contributions to the total charged current cross section at the energies of the NuMi neutrino beam. This technique could be applied for beam monitoring in future neutrino facilities, and this paper shows its proof-of-principle. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft

Published
2010

233. Measurement of D*+ production in charged-current neutrino interactions

Author

Önengüt, G., van Dantzig, R., de Jong, M., Oldeman, R.G.C., Güler, M., Köse, U., Tolun, P., Catanesi, M.G., Muciaccia, M.T., Winter, K., Van de Vyver, B., Vilain, P., Wilquet, G., Saitta, B., Di Capua, E., Ogawa, S., Shibuya, H., Hristova, I.R., Kayis-Topaksu, A., Kawamura, T., Kolev, D., Meinhard, H., Panman, J., Rozanov, A., Tsenov, R., Uiterwijk, J.W.E., Zucchelli, P., Goldberg, J., Chikawa, M., Song, J.S., Yoon, C.S., Kodama, K., Ushida, N., Aoki, S., Hara, T., Delbar, T., Favart, D., Grégoire, G., Kalinin, S., Makhlioueva, I., Artamonov, A., Gorbunov, P., Khovansky, V., Shamanov, V., Tsukerman, I., Bruski, N., Frekers, D., Hoshino, K., Kawada, J., Komatsu, M., Miyanishi, M., Nakamura, M., Nakano, T., Narita, K., Niu, K., Niwa, K., Nonaka, N., Sato, O., Toshito, T., Buontempo, S., Cocco, A.G., D'Ambrosio, N., De Lellis, G., De Rosa, G., Di Capua, F., Fiorillo, G., Marotta, A., Messina, M., Migliozzi, P., Scotto Lavina, L., Strolin, P., Tioukov, V., Okusawa, T., Dore, U., Loverre, P.F., Ludovici, L., Rosa, G., Santacesaria, R., Satta, A., Spada, F.R., Barbuto, E., Bozza, C., Grella, G., Romano, G., Sirignano, C., Sorrentino, S., Sato, Y., and Tezuka, I.

Subjects
Nuclear and High Energy Physics
Published
2005
Full Text
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234. The detection of neutrino interactions in the emulsion/lead target of the OPERA experiment

Author

Agafonova, N, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Arrabito, L, Autiero, D, Badertscher, A, Bagulya, A, Bersani Greggio, F, Bertolin, A, Besnier, M, Bick, D, Boyarkin, V, Bozza, C, Brugière, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Cozzi, M, D'Amato, G, Dal Corso, F, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Frekers, D, Fukuda, T, Fukushima, C, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Goeltzenlichter, T, Goldberg, J, Golubkov, D, Gornushkin, Y, Grella, G, Grianti, F, Guler, M, Gustavino, C, Hagner, C, Hamada, K, Hara, T, Hierholzer, M, Hoshino, K, Ieva, M, Jakovcic, K, Janutta, B, Jollet, C, Juget, F, Kazuyama, M, Kim, S, Kimura, M, Kitagawa, N, Klicek, B, Knuesel, J, Kodama, K, Kolev, D, Komatsu, M, Kose, U, Krasnoperov, A, Kreslo, I, Krumstein, Z, Kubota, H, Kutsenov, V, Kuznetsov, V, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Malgin, A, Manai, K, Mandrioli, G, Marotta, A, Marteau, J, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Nozdrin, A, Ogawa, S, Olchevski, A, Orlova, G, Osedlo, V, Ossetski, D, Paniccia, M, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Rescigno, R, Rizhikov, D, Roganova, T, Romano, G, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryasny, V, Ryazhskaya, O, Sadovski, A, Sato, O, Sato, Y, Saveliev, V, Schembri, A, Schmidt Parzefall, W, Schroeder, H, Schütz, H, Schuler, J, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Takahashi, S, Tereschenko, V, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Tsarev, V, Tsenov, R, Tufanli, S, Ushida, N, Verguilov, V, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yakushev, V, Yoon, C, Yoshioka, T, Yoshida, J, Zaitsev, Y, Zghiche, A, Zimmermann, R, Agafonova, N., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Arrabito, L., Autiero, D., Badertscher, A., Bagulya, A., Bersani Greggio, F., Bertolin, A., Besnier, M., Bick, D., Boyarkin, V., Bozza, C., Brugière, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Cozzi, M., D'amato, G., Dal Corso, F., D'ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, M., Duchesneau, D., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R., Frekers, D., Fukuda, T., Fukushima, C., Galkin, V. I., Galkin, V. A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Goeltzenlichter, T., Goldberg, J., Golubkov, D., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hamada, K., Hara, T., Hierholzer, M., Hoshino, K., Ieva, M., Jakovcic, K., Janutta, B., Jollet, C., Juget, F., Kazuyama, M., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Knuesel, J., Kodama, K., Kolev, D., Komatsu, M., Kose, U., Krasnoperov, A., Kreslo, I., Krumstein, Z., Kubota, H., Kutsenov, V. V., Kuznetsov, V. A., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Lutter, G., Malgin, A., Manai, K., Mandrioli, G., Marotta, A., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Miyamoto, S., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Nozdrin, A., Ogawa, S., Olchevski, A., Orlova, G., Osedlo, V., Ossetski, D., 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., Rescigno, R., Rizhikov, D., Roganova, T., Romano, G., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryasny, V., Ryazhskaya, O., Sadovski, A., Sato, O., Sato, Y., Saveliev, V., Schembri, A., Schmidt Parzefall, W., Schroeder, H., Schütz, H. U., Schuler, J., Scotto Lavina, L., 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., Sugonyaev, V., Takahashi, S., Tereschenko, V., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Tsarev, V., Tsenov, R., Tufanli, S., Ushida, N., Verguilov, V., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yakushev, V., Yoon, C. S., Yoshioka, T., Yoshida, J., Zaitsev, Y., Zghiche, A., Zimmermann, R., Agafonova, N, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Arrabito, L, Autiero, D, Badertscher, A, Bagulya, A, Bersani Greggio, F, Bertolin, A, Besnier, M, Bick, D, Boyarkin, V, Bozza, C, Brugière, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Cozzi, M, D'Amato, G, Dal Corso, F, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Frekers, D, Fukuda, T, Fukushima, C, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Goeltzenlichter, T, Goldberg, J, Golubkov, D, Gornushkin, Y, Grella, G, Grianti, F, Guler, M, Gustavino, C, Hagner, C, Hamada, K, Hara, T, Hierholzer, M, Hoshino, K, Ieva, M, Jakovcic, K, Janutta, B, Jollet, C, Juget, F, Kazuyama, M, Kim, S, Kimura, M, Kitagawa, N, Klicek, B, Knuesel, J, Kodama, K, Kolev, D, Komatsu, M, Kose, U, Krasnoperov, A, Kreslo, I, Krumstein, Z, Kubota, H, Kutsenov, V, Kuznetsov, V, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Malgin, A, Manai, K, Mandrioli, G, Marotta, A, Marteau, J, Matsuo, T, Matveev, V, Mauri, N, Medinaceli, E, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Nozdrin, A, Ogawa, S, Olchevski, A, Orlova, G, Osedlo, V, Ossetski, D, Paniccia, M, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Rescigno, R, Rizhikov, D, Roganova, T, Romano, G, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryasny, V, Ryazhskaya, O, Sadovski, A, Sato, O, Sato, Y, Saveliev, V, Schembri, A, Schmidt Parzefall, W, Schroeder, H, Schütz, H, Schuler, J, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Takahashi, S, Tereschenko, V, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Tsarev, V, Tsenov, R, Tufanli, S, Ushida, N, Verguilov, V, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yakushev, V, Yoon, C, Yoshioka, T, Yoshida, J, Zaitsev, Y, Zghiche, A, Zimmermann, R, Agafonova, N., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Arrabito, L., Autiero, D., Badertscher, A., Bagulya, A., Bersani Greggio, F., Bertolin, A., Besnier, M., Bick, D., Boyarkin, V., Bozza, C., Brugière, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Cozzi, M., D'amato, G., Dal Corso, F., D'ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, M., Duchesneau, D., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R., Frekers, D., Fukuda, T., Fukushima, C., Galkin, V. I., Galkin, V. A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Goeltzenlichter, T., Goldberg, J., Golubkov, D., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hamada, K., Hara, T., Hierholzer, M., Hoshino, K., Ieva, M., Jakovcic, K., Janutta, B., Jollet, C., Juget, F., Kazuyama, M., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Knuesel, J., Kodama, K., Kolev, D., Komatsu, M., Kose, U., Krasnoperov, A., Kreslo, I., Krumstein, Z., Kubota, H., Kutsenov, V. V., Kuznetsov, V. A., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Lutter, G., Malgin, A., Manai, K., Mandrioli, G., Marotta, A., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Miyamoto, S., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Nozdrin, A., Ogawa, S., Olchevski, A., Orlova, G., Osedlo, V., Ossetski, D., 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., Rescigno, R., Rizhikov, D., Roganova, T., Romano, G., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryasny, V., Ryazhskaya, O., Sadovski, A., Sato, O., Sato, Y., Saveliev, V., Schembri, A., Schmidt Parzefall, W., Schroeder, H., Schütz, H. U., Schuler, J., Scotto Lavina, L., 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., Sugonyaev, V., Takahashi, S., Tereschenko, V., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Tsarev, V., Tsenov, R., Tufanli, S., Ushida, N., Verguilov, V., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yakushev, V., Yoon, C. S., Yoshioka, T., Yoshida, J., Zaitsev, Y., Zghiche, A., and Zimmermann, R.

Abstract

The OPERA neutrino detector in the underground Gran Sasso Laboratory (LNGS) was designed to perform the first detection of neutrino oscillations in appearance mode through the study of Î1⁄2Î1⁄4→ Î1⁄2Ï„oscillations. The 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 2007 and 2008 with the detector fully operational with its related facilities for the emulsion handling and analysis. After a brief description of the beam and of the experimental setup we report on the collection, reconstruction and analysis procedures of first samples of neutrino interaction events. © 2009 IOP Publishing Ltd and SISSA.

Published
2009

235. NEWS: Nuclear Emulsions for WIMP Search

Author

Aleksandrov, A., Anokhina, A., Asada, T., Bender, D., Bodnarchuk, I., Buonaura, A., Buontempo, S., Chernyavskii, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Di Crescenzo, A., Di Marco, N., Dmitrievski, S., Dzhatdoev, T., Fini, R. A., Furuya, S., Galati, G., Gentile, V., Gorbunov, S., Gornushkin, Y., Guler, A. M., Ichiki, H., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kimura, M., Konovalova, N., Kuge, K., Lauria, A., Loverre, P., Machii, S., Managadze, A., Monacelli, P., Montesi, M. C., Naka, T., Nakamura, M., Nakano, T., Pastore, A., Podgrudkov, D., Polukhina, N., Pupilli, F., Roganova, T., Rosa, G., Sato, O., Shchedrina, T., Simone, S., Sirignano, C., Sotnikov, A., Starkov, N., Strolin, P., Tawara, Y., Tioukov, V., Umemoto, A., Vladymyrov, M., Yoshimoto, M., Zemskova, S., Aleksandrov, A., Anokhina, A., Asada, T., Bender, D., Bodnarchuk, I., Buonaura, A., Buontempo, S., Chernyavskii, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Di Crescenzo, A., Di Marco, N., Dmitrievski, S., Dzhatdoev, T., Fini, R. A., Furuya, S., Galati, G., Gentile, V., Gorbunov, S., Gornushkin, Y., Guler, A. M., Ichiki, H., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kimura, M., Konovalova, N., Kuge, K., Lauria, A., Loverre, P., Machii, S., Managadze, A., Monacelli, P., Montesi, M. C., Naka, T., Nakamura, M., Nakano, T., Pastore, A., Podgrudkov, D., Polukhina, N., Pupilli, F., Roganova, T., Rosa, G., Sato, O., Shchedrina, T., Simone, S., Sirignano, C., Sotnikov, A., Starkov, N., Strolin, P., Tawara, Y., Tioukov, V., Umemoto, A., Vladymyrov, M., Yoshimoto, M., and Zemskova, S.

Abstract

Nowadays there is compelling evidence for the existence of dark matter in the Universe. A general consensus has been expressed on the need for a directional sensitive detector to confirm, with a complementary approach, the candidates found in conventional searches and to finally extend their sensitivity beyond the limit of neutrino-induced background. We propose here the use of a detector based on nuclear emulsions to measure the direction of WIMP-induced nuclear recoils. The production of nuclear emulsion films with nanometric grains is established. Several measurement campaigns have demonstrated the capability of detecting sub-micrometric tracks left by low energy ions in such emulsion films. Innovative analysis technologies with fully automated optical microscopes have made it possible to achieve the track reconstruction for path lengths down to one hundred nanometers and there are good prospects to further exceed this limit. The detector concept we propose foresees the use of a bulk of nuclear emulsion films surrounded by a shield from environmental radioactivity, to be placed on an equatorial telescope in order to cancel out the effect of the Earth rotation, thus keeping the detector at a fixed orientation toward the expected direction of galactic WIMPs. We report the schedule and cost estimate for a one-kilogram mass pilot experiment, aiming at delivering the first results on the time scale of six years.

Published
2016

237. Emulsion sheet doublets as interface trackers for the OPERA experiment

Author

Anokhina, A, Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Badertscher, A, Bay, F, Greggio, F, Bertolin, A, Besnier, M, Bick, D, Bozza, C, Brugiere, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Consiglio, L, Cozzi, M, Cuha, V, Dal Corso, F, D'Amato, G, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Frekers, D, Fukuda, T, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Goldberg, J, Golubkov, D, Gornushkin, Y, Grella, G, Grianti, F, Guler, M, Gusev, G, Gustavino, C, Hagner, C, Hara, T, Hierholzer, M, Hiramatsu, S, Hoshino, K, Ieva, M, Jakovcic, K, Janicsko Csathy, J, Janutta, B, Jollet, C, Juget, F, Kawai, T, Kazuyama, M, Kim, S, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Manai, K, Mandrioli, G, Marotta, A, Marteau, J, Matsuo, T, Matsuoka, H, Mauri, N, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Mikado, S, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakamura, T, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Ogawa, S, Osedlo, V, Ossetski, D, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Roganova, T, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryazhskaya, O, Ryzhikov, D, Sato, O, Sato, Y, Saveliev, V, Sazhina, G, Schembri, A, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Taira, Y, Takahashi, S, Tenti, M, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Tsarev, V, Tufanli, S, Ushida, N, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yoon, C, Yoshida, J, Zaitsev, Y, Zemskova, S, Zghiche, A, Zimmermann, R, Anokhina, A., Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Badertscher, A., Bay, F., Greggio, F. Bersani, Bertolin, A., Besnier, M., Bick, D., Bozza, C., Brugiere, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Consiglio, L., Cozzi, M., Cuha, V., Dal Corso, F., D'Amato, G., D'Ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, M., Duchesneau, D., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R., Frekers, D., Fukuda, T., Galkin, V. I., Galkin, V. A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Goldberg, J., Golubkov, D., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gusev, G., Gustavino, C., Hagner, C., Hara, T., Hierholzer, M., Hiramatsu, S., Hoshino, K., Ieva, M., Jakovcic, K., Janicsko Csathy, J., Janutta, B., Jollet, C., Juget, F., Kawai, T., Kazuyama, M., Kim, S. H., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Lutter, G., Manai, K., Mandrioli, G., Marotta, A., Marteau, J., Matsuo, T., Matsuoka, H., Mauri, N., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Mikado, S., Miyamoto, S., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakamura, T., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Ogawa, S., Osedlo, V., Ossetski, D., 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, Fabio, Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Ryzhikov, D., Sato, O., Sato, Y., Saveliev, V., Sazhina, G., Schembri, A., Scotto Lavina, L., 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., Sugonyaev, V., Taira, Y., Takahashi, S., Tenti, M., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Tsarev, V., Tufanli, S., Ushida, N., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., Zimmermann, R., Anokhina, A, Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Badertscher, A, Bay, F, Greggio, F, Bertolin, A, Besnier, M, Bick, D, Bozza, C, Brugiere, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Consiglio, L, Cozzi, M, Cuha, V, Dal Corso, F, D'Amato, G, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Frekers, D, Fukuda, T, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Goldberg, J, Golubkov, D, Gornushkin, Y, Grella, G, Grianti, F, Guler, M, Gusev, G, Gustavino, C, Hagner, C, Hara, T, Hierholzer, M, Hiramatsu, S, Hoshino, K, Ieva, M, Jakovcic, K, Janicsko Csathy, J, Janutta, B, Jollet, C, Juget, F, Kawai, T, Kazuyama, M, Kim, S, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Manai, K, Mandrioli, G, Marotta, A, Marteau, J, Matsuo, T, Matsuoka, H, Mauri, N, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Mikado, S, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakamura, T, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Ogawa, S, Osedlo, V, Ossetski, D, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Roganova, T, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryazhskaya, O, Ryzhikov, D, Sato, O, Sato, Y, Saveliev, V, Sazhina, G, Schembri, A, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Taira, Y, Takahashi, S, Tenti, M, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Tsarev, V, Tufanli, S, Ushida, N, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yoon, C, Yoshida, J, Zaitsev, Y, Zemskova, S, Zghiche, A, Zimmermann, R, Anokhina, A., Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Badertscher, A., Bay, F., Greggio, F. Bersani, Bertolin, A., Besnier, M., Bick, D., Bozza, C., Brugiere, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Consiglio, L., Cozzi, M., Cuha, V., Dal Corso, F., D'Amato, G., D'Ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, M., Duchesneau, D., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R., Frekers, D., Fukuda, T., Galkin, V. I., Galkin, V. A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Goldberg, J., Golubkov, D., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gusev, G., Gustavino, C., Hagner, C., Hara, T., Hierholzer, M., Hiramatsu, S., Hoshino, K., Ieva, M., Jakovcic, K., Janicsko Csathy, J., Janutta, B., Jollet, C., Juget, F., Kawai, T., Kazuyama, M., Kim, S. H., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Lutter, G., Manai, K., Mandrioli, G., Marotta, A., Marteau, J., Matsuo, T., Matsuoka, H., Mauri, N., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Mikado, S., Miyamoto, S., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakamura, T., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Ogawa, S., Osedlo, V., Ossetski, D., 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, Fabio, Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Ryzhikov, D., Sato, O., Sato, Y., Saveliev, V., Sazhina, G., Schembri, A., Scotto Lavina, L., 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., Sugonyaev, V., Taira, Y., Takahashi, S., Tenti, M., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Tsarev, V., Tufanli, S., Ushida, N., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., and Zimmermann, R.

Abstract

New methods for efficient and unambiguous interconnection between electronic position sensitive detectors and target units based on nuclear photographic emulsion films have been developed. The application to the OPERA experiment,that aims at detecting VÎ1⁄4⇋VÏ„oscillations in the CNGS neutrino beam,is reported in this paper. In order to reduce background due to latent tracks collected before installation in the detector,on-site large-scale treatments of the emulsions (“refreshing”) have been applied. Changeable Sheet (CSd) packages,each made of a doublet of emulsion films,have been designed,assembled and coupled to the OPERA target units (“ECC bricks”). A device has been built to print X-ray spots for accurate interconnection both within the CSd and between the CSd and the related ECC brick. Sample emulsion films have been extensively scanned with state-of-the-art automated optical microscopes. Efficient track-matching and powerful background rejection have been achieved in tests with electronically tagged penetrating muons. Further improvement of in-doublet film alignment was obtained by matching the pattern of low-energy electron tracks. The commissioning of the overall OPERA alignment procedure is in progress

Published
2008

238. Study of the effects induced by lead on the emulsion films of the OPERA experiment

Author

Anokhina, A, Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Badertscher, A, Bay, F, Bergnoli, A, Bersani Greggio, F, Besnier, M, Bick, D, Bozza, C, Brugiere, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Consiglio, L, Cozzi, M, Dal Corso, F, D'Amato, G, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dulach, B, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Franceschi, A, Fukuda, T, Fukushima, C, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Golubkov, D, Gornoushkin, Y, Grella, G, Grianti, F, Guler, M, Gusev, G, Gustavino, C, Hagner, C, Hara, T, Hierholzer, M, Hiramatsu, S, Hoshino, K, Ieva, M, Jakovcic, K, Janicsko Csathy, J, Janutta, B, Jollet, C, Juget, F, Kawai, T, Kazuyama, M, Kim, S, Kimura, M, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Manai, K, Mandrioli, G, Manzoor, S, Marotta, A, Marteau, J, Matsuoka, H, Mauri, N, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakamura, T, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Ogawa, S, Osedlo, V, Ossetski, D, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Roganova, T, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryazhskaya, O, Ryzhikov, D, Sato, Y, Sato, O, Saveliev, V, Sazhina, G, Schembri, A, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Taira, Y, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Togo, V, Tolun, P, Tsarev, V, Tufanli, S, Ushida, N, Valieri, C, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Wurtz, J, Yoon, C, Yoshida, J, Zaitsev, Y, Zemskova, S, Zghiche, A, Zimmermann, R, Anokhina, A., Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Badertscher, A., Bay, F., Bergnoli, A., Bersani Greggio, F., Besnier, M., Bick, D., Bozza, C., Brugiere, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Consiglio, L., Cozzi, M., Dal Corso, F., D'Amato, G., D'Ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, M., Duchesneau, D., Dulach, B., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R., Franceschi, A., Fukuda, T., Fukushima, C., Galkin, V. I., Galkin, V. A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Golubkov, D., Gornoushkin, Y., Grella, G., Grianti, F., Guler, M., Gusev, G., Gustavino, C., Hagner, C., Hara, T., Hierholzer, M., Hiramatsu, S., Hoshino, K., Ieva, M., Jakovcic, K., Janicsko Csathy, J., Janutta, B., Jollet, C., Juget, F., Kawai, T., Kazuyama, M., Kim, S. H., Kimura, M., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Lutter, G., Manai, K., Mandrioli, G., Manzoor, S., Marotta, A., Marteau, J., Matsuoka, H., Mauri, N., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Miyamoto, S., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakamura, T., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Ogawa, S., Osedlo, V., Ossetski, D., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Polukhina, N., Pozzato, M., Pretzl, K., Publichenko, P., Pupilli, Fabio, Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Ryzhikov, D., Sato, Y., Sato, O., Saveliev, V., Sazhina, G., Schembri, A., Scotto Lavina, L., 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., Sugonyaev, V., Taira, Y., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Togo, V., Tolun, P., Tsarev, V., Tufanli, S., Ushida, N., Valieri, C., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Wurtz, J., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., Zimmermann, R., Anokhina, A, Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Badertscher, A, Bay, F, Bergnoli, A, Bersani Greggio, F, Besnier, M, Bick, D, Bozza, C, Brugiere, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Consiglio, L, Cozzi, M, Dal Corso, F, D'Amato, G, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dulach, B, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Franceschi, A, Fukuda, T, Fukushima, C, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Golubkov, D, Gornoushkin, Y, Grella, G, Grianti, F, Guler, M, Gusev, G, Gustavino, C, Hagner, C, Hara, T, Hierholzer, M, Hiramatsu, S, Hoshino, K, Ieva, M, Jakovcic, K, Janicsko Csathy, J, Janutta, B, Jollet, C, Juget, F, Kawai, T, Kazuyama, M, Kim, S, Kimura, M, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Manai, K, Mandrioli, G, Manzoor, S, Marotta, A, Marteau, J, Matsuoka, H, Mauri, N, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakamura, T, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Ogawa, S, Osedlo, V, Ossetski, D, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Roganova, T, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryazhskaya, O, Ryzhikov, D, Sato, Y, Sato, O, Saveliev, V, Sazhina, G, Schembri, A, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Taira, Y, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Togo, V, Tolun, P, Tsarev, V, Tufanli, S, Ushida, N, Valieri, C, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Wurtz, J, Yoon, C, Yoshida, J, Zaitsev, Y, Zemskova, S, Zghiche, A, Zimmermann, R, Anokhina, A., Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Badertscher, A., Bay, F., Bergnoli, A., Bersani Greggio, F., Besnier, M., Bick, D., Bozza, C., Brugiere, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Consiglio, L., Cozzi, M., Dal Corso, F., D'Amato, G., D'Ambrosio, N., De Lellis, G., Déclais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, M., Duchesneau, D., Dulach, B., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, A., Esposito, L. S., Favier, J., Felici, G., Ferber, T., Fini, R., Franceschi, A., Fukuda, T., Fukushima, C., Galkin, V. I., Galkin, V. A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Golubkov, D., Gornoushkin, Y., Grella, G., Grianti, F., Guler, M., Gusev, G., Gustavino, C., Hagner, C., Hara, T., Hierholzer, M., Hiramatsu, S., Hoshino, K., Ieva, M., Jakovcic, K., Janicsko Csathy, J., Janutta, B., Jollet, C., Juget, F., Kawai, T., Kazuyama, M., Kim, S. H., Kimura, M., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, A., Lutter, G., Manai, K., Mandrioli, G., Manzoor, S., Marotta, A., Marteau, J., Matsuoka, H., Mauri, N., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Miyamoto, S., Monacelli, P., Morishima, K., Moser, U., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakamura, T., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Ogawa, S., Osedlo, V., Ossetski, D., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Polukhina, N., Pozzato, M., Pretzl, K., Publichenko, P., Pupilli, Fabio, Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Ryzhikov, D., Sato, Y., Sato, O., Saveliev, V., Sazhina, G., Schembri, A., Scotto Lavina, L., 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., Sugonyaev, V., Taira, Y., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Togo, V., Tolun, P., Tsarev, V., Tufanli, S., Ushida, N., Valieri, C., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Wurtz, J., Yoon, C. S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, A., and Zimmermann, R.

Abstract

The OPERA neutrino oscillation experiment is based on the use of the Emulsion Cloud Chamber (ECC). In the OPERA ECC, nuclear emulsion films acting as very high precision tracking detectors are interleaved with lead plates providing a massive target for neutrino interactions. We report on studies related to the effects occurring from the contact between emulsion and lead. A low radioactivity lead is required in order to minimize the number of background tracks in emulsions and to achieve the required performance in the reconstruction of neutrino events. It was observed that adding other chemical elements to the lead, in order to improve the mechanical properties, may significantly increase the level of radioactivity on the emulsions. A detailed study was made in order to choose a lead alloy with good mechanical properties and an appropriate packing technique so as to have a low enough effective radioactivity. © 2008 IOP Publishing Ltd and SISSA.

Published
2008

239. Observation of a first v(tau) candidate in the OPERA experiment in the CNGS beam

Author

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, 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, Favier, J, Ferber, T, Fini, R, 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, 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, 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, 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, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Repellin, J, 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, 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, Wilquet, G, Wonsak, B, Yakushev, V, Yoon, C, Yoshida, J, Yoshioka, T, Zaitsev, Y, Zemskova, S, Zghiche, A, and Zimmermann, R

Subjects
CNGS, Oscillation, Neutrino, OPERA, Appearance, Tau
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 v(mu) -> v(tau) 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 v(tau) 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. (C) 2010 Elsevier B.V. All rights reserved

Published
2010

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

Author

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., Corso, F. Dal, D'Ambrosio, N., Declais, Y., del Amo Sanchez, P., De Lellis, G., De Serio, M., 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., DI CAPUA, FRANCESCO, 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., Corso, F. Dal, D'Ambrosio, N., Declais, Y., del Amo Sanchez, P., De Lellis, G., De Serio, M., DI CAPUA, Francesco, 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., and Zimmermann, R.

Subjects
CNGS, Oscillation, Neutrino, OPERA, Appearance, Tau
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.

Published
2010

241. The Angular Matching Method for the Muon Charge Sign Measurement in the OPERA Experiment

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Buttner, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., del Amo Sanchez, P., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R.A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Gollnitz, C., Goldberg, J., Goloubkov, D., Gornushkin, Y., Grella, G., Guler, M., Gustavino, C., Hagner, C., Hara, T., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kawada, J., Kim, J.H., Kim, S.H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Malenica, M., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Meyer, M., Mikado, S., Monacelli, P., Montesi, M.C., Morishima, K., Muciaccia, M.T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B.D., Park, I.G., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Rostovtseva, I., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S.M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J.L., Wilquet, G., Wonsak, B., Yoon, C.S., Zaitsev, Y., Zemskova, S., and Zghiche, A.

Subjects
Physics::Instrumentation and Detectors, High Energy Physics::Experiment, Detectors and Experimental Techniques
Abstract

The long baseline neutrino oscillation experiment OPERA is searching for $\nu_{\tau}$ appearance in the CNGS beam of $\nu_{\mu}$. The task of the two muon spectrometers of the OPERA detector is to clarify the signature of a muonic $\tau$ decay ($\mu^{-}$) and to reduce background originating from charmed particles produced in $\nu_{\mu}$ interactions ($\mu^{+}$). Based on geometric considerations a method called angular matching method is developed which allows to improve the charge sign determination. In a realistic beam Monte Carlo simulation it is shown that the fraction of misidentified muon charges can be reduced by 39%. A first estimation of the fraction of misidentified muon charges with tracks crossing one spectrometer is presented and compared with real data. Furthermore the potential of the new method is demonstrated as it can lead to an improvement of one order of magnitude concerning the fraction of misidentified muon charges. The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of ν(τ) in the CNGS ν(μ) beam. Two large muon magnetic spectrometers are used to identify muons produced in the τ leptonic decay and in ν(μ) CC interactions by measuring their charge and momentum. Besides the kinematic analysis of the τ decays, background resulting from the decay of charmed particles produced in ν(μ) CC interactions is reduced by efficiently identifying the muon track. A new method for the charge sign determination has been applied, via a weighted angular matching of the straight track-segments reconstructed in the different parts of the dipole magnets. Results obtained for Monte Carlo and real data are presented. Comparison with a method where no matching is used shows a significant reduction of up to 40% of the fraction of wrongly determined charges. The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of $\nu_\tau$ in the CNGS $\nu_\mu$ beam. Two large muon magnetic spectrometers are used to identify muons produced in the $\tau$ leptonic decay and in $\nu_\mu^{CC}$ interactions by measuring their charge and momentum. Besides the kinematic analysis of the $\tau$ decays, background resulting from the decay of charmed particles produced in $\nu_\mu^{CC}$ interactions is reduced by efficiently identifying the muon track. A new method for the charge sign determination has been applied, via a weighted angular matching of the straight track-segments reconstructed in the different parts of the dipole magnets. Results obtained for Monte Carlo and real data are presented. Comparison with a method where no matching is used shows a significant reduction of up to 40\% of the fraction of wrongly determined charges.

Published
2014

242. Evidence for νμ→ντ appearance in the CNGS neutrino beam with the OPERA experiment

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Autiero, D., Ben Dhahbi, A., Badertscher, A., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Brunet, F., Brunetti, G., Buonaura, A., Buontempo, S., Buttner, B., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Del Amo Sanchez, P., Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Ferber, T., Ferone, G., Fini, R. a., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hakamata, K., Hara, T., Hayakawa, T., Hierholzer, M., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Ishikawa, M., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawada, J., Kawahara, H., Kim, J. h., Kim, S. h., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, Pier Ferruccio, Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Migliozzi, P., Mikado, S., Miyanishi, M., Miyashita, E., Monacelli, P., Montesi, M. c., Morishima, K., Muciaccia, M. t., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. d., Park, I. g., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, M., Rokujo, H., Roganova, T., Rosa, Giovanni, Rostovtseva, I., Rubbia, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt Parzefal, W., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. m., Stipcevic, M., Strauss, T., Strolin, P., Suzuki, K., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. l., Wilquet, G., Wonsak, B., Yoon, C. s., Yoshida, J., Yoshimoto, M., Zaitsev, Y., Zemskova, S., and Zghiche, A.

Subjects
neutrino oscillation
Published
2014

243. Observation of nu_tau appearance in the CNGS beam with the OPERA experiment

Author

OPERA Collaboration, Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Buttne, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. Del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Guler, M., Gustavino, C., Hagner, C., Hara, T., Hayakawa, T., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawada, J., Kawahara, H., Kim, J. H., Kim, S. H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malenica, M., Malgin, A., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Meyer, M., Mikado, S., Miyanishi, M., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Roganova, T., Rokujo, H., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Umemoto, A., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yaguchi, I., Yoshimoto, M., Zemskova, S., Zghiche, A., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and OPERA

Subjects
High Energy Physics - Experiment (hep-ex), tau neutrino, hep-ex, CNGS beam, Gran Sasso Laboratory, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, High Energy Physics - Experiment
Abstract

The OPERA experiment is searching for nu_mu -> nu_tau oscillations in appearance mode i.e. via the direct detection of tau leptons in nu_tau charged current interactions. The evidence of nu_mu -> nu_tau appearance has been previously reported with three nu_tau candidate events using a sub-sample of data from the 2008-2012 runs. We report here a fourth nu_tau candidate event, with the tau decaying into a hadron, found after adding the 2012 run events without any muon in the final state to the data sample. Given the number of analysed events and the low background, nu_mu -> nu_tau oscillations are established with a significance of 4.2sigma., Submitted to Progress of Theoretical and Experimental Physics (PTEP)

Published
2014
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244. Measurement of TeV atmospheric muon charge ratio with the full OPERA data

Author

Agafonova, N., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Buettner, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. Del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Guler, M., Gustavino, C., Hagner, C., Hara, T., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Kawada, J., Kim, J. H., Kim, S. H., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Malenica, M., Mandrioli, G., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Mikado, S., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pasqualini, L., Pastore, A., Patrizii, L., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pupilli, F., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Ryazhskaya, O., Sato, O., Schembri, A., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strolin, P., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Zemskova, S., Zghiche, A., Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and OPERA

Subjects
High Energy Physics - Experiment (hep-ex), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, High Energy Physics::Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The OPERA detector, designed to search for $\nu_{\mu} \to \nu_{\tau}$ oscillations in the CNGS beam, is located in the underground Gran Sasso laboratory, a privileged location to study TeV-scale cosmic rays. For the analysis here presented, the detector was used to measure the atmospheric muon charge ratio in the TeV region. OPERA collected charge-separated cosmic ray data between 2008 and 2012. More than 3 million atmospheric muon events were detected and reconstructed, among which about 110000 multiple muon bundles. The charge ratio $R_{\mu} \equiv N_{\mu^+}/N_{\mu^-}$ was measured separately for single and for multiple muon events. The analysis exploited the inversion of the magnet polarity which was performed on purpose during the 2012 Run. The combination of the two data sets with opposite magnet polarities allowed minimizing systematic uncertainties and reaching an accurate determination of the muon charge ratio. Data were fitted to obtain relevant parameters on the composition of primary cosmic rays and the associated kaon production in the forward fragmentation region. In the surface energy range 1-20 TeV investigated by OPERA, $R_{\mu}$ is well described by a parametric model including only pion and kaon contributions to the muon flux, showing no significant contribution of the prompt component. The energy independence supports the validity of Feynman scaling in the fragmentation region up to $200$ TeV/nucleon primary energy., Comment: 8 pages, 2 figures, 4 tables

Published
2014
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245. Evidence for $\nu_\mu \to \nu_\tau$ appearance in the CNGS neutrino beam with the OPERA experiment

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Autiero, D., Dhahbi, A. Ben, Badertscher, A., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Brunet, F., Brunetti, G., Buonaura, A., Buontempo, S., Buettner, B., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. Del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Ferber, T., Ferone, G., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hakamata, K., Hara, T., Hayakawa, T., Hierholzer, M., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Ishikawa, M., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawada, J., Kawahara, H., Kim, J. H., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Migliozzi, P., Mikado, S., Miyanishi, M., Miyashita, E., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt-Parzefal, W., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strauss, T., Strolin, P., Suzuki, K., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zaitsev, Y., Zemskova, S., Zghiche, A., Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Institut Pluridisciplinaire Hubert Curien (IPHC), Université de Strasbourg (UNISTRA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), and OPERA

Subjects
Physics - Instrumentation and Detectors, hep-ex, High Energy Physics::Phenomenology, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

The OPERA experiment is designed to search for $\nu_{\mu} \rightarrow \nu_{\tau}$ oscillations in appearance mode i.e. through the direct observation of the $\tau$ lepton in $\nu_{\tau}$ charged current interactions. The experiment has taken data for five years, since 2008, with the CERN Neutrino to Gran Sasso beam. Previously, two $\nu_{\tau}$ candidates with a $\tau$ decaying into hadrons were observed in a sub-sample of data of the 2008-2011 runs. Here we report the observation of a third $\nu_\tau$ candidate in the $\tau^-\to\mu^-$ decay channel coming from the analysis of a sub-sample of the 2012 run. Taking into account the estimated background, the absence of $\nu_{\mu} \rightarrow \nu_{\tau}$ oscillations is excluded at the 3.4 $\sigma$ level., Comment: 9 pages, 5 figures, 1 tables

Published
2014
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246. Evidence for $��_��\to ��_��$ appearance in the CNGS neutrino beam with the OPERA experiment

Author

Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Asada, T., Autiero, D., Dhahbi, A. Ben, Badertscher, A., Bender, D., Bertolin, A., Bozza, C., Brugnera, R., Brunet, F., Brunetti, G., Buonaura, A., Buontempo, S., Buettner, B., Chaussard, L., Chernyavsky, M., Chiarella, V., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., De Serio, M., Sanchez, P. Del Amo, Di Crescenzo, A., Di Ferdinando, D., Di Marco, N., Dmitrievski, S., Dracos, M., Duchesneau, D., Dusini, S., Dzhatdoev, T., Ebert, J., Ereditato, A., Favier, J., Ferber, T., Ferone, G., Fini, R. A., Fukuda, T., Galati, G., Garfagnini, A., Giacomelli, G., Goellnitz, C., Goldberg, J., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gustavino, C., Hagner, C., Hakamata, K., Hara, T., Hayakawa, T., Hierholzer, M., Hollnagel, A., Hosseini, B., Ishida, H., Ishiguro, K., Ishikawa, M., Jakovcic, K., Jollet, C., Kamiscioglu, C., Kamiscioglu, M., Katsuragawa, T., Kawada, J., Kawahara, H., Kim, J. H., Kim, S. H., Kimura, M., Kitagawa, N., Klicek, B., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Lauria, A., Lenkeit, J., Ljubicic, A., Longhin, A., Loverre, P., Malgin, A., Mandrioli, G., Marteau, J., Matsuo, T., Matveev, V., Mauri, N., Medinaceli, E., Meregaglia, A., Migliozzi, P., Mikado, S., Miyanishi, M., Miyashita, E., Monacelli, P., Montesi, M. C., Morishima, K., Muciaccia, M. T., Naganawa, N., Naka, T., Nakamura, M., Nakano, T., Nakatsuka, Y., Niwa, K., Ogawa, S., Okateva, N., Olshevsky, A., Omura, T., Ozaki, K., Paoloni, A., Park, B. D., Park, I. G., Pastore, A., Patrizii, L., Pennacchio, E., Pessard, H., Pistillo, C., Podgrudkov, D., Polukhina, N., Pozzato, M., Pretzl, K., Pupilli, F., Rescigno, R., Roda, M., Rokujo, H., Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Ryazhskaya, O., Sato, O., Sato, Y., Schembri, A., Schmidt-Parzefal, W., Shakiryanova, I., Shchedrina, T., Sheshukov, A., Shibuya, H., Shiraishi, T., Shoziyoev, G., Simone, S., Sioli, M., Sirignano, C., Sirri, G., Spinetti, M., Stanco, L., Starkov, N., Stellacci, S. M., Stipcevic, M., Strauss, T., Strolin, P., Suzuki, K., Takahashi, S., Tenti, M., Terranova, F., Tioukov, V., Tufanli, S., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J. L., Wilquet, G., Wonsak, B., Yoon, C. S., Yoshida, J., Yoshimoto, M., Zaitsev, Y., Zemskova, S., and Zghiche, A.

Subjects
High Energy Physics - Experiment (hep-ex), Physics::Instrumentation and Detectors, High Energy Physics::Phenomenology, FOS: Physical sciences, High Energy Physics::Experiment, Instrumentation and Detectors (physics.ins-det)
Abstract

The OPERA experiment is designed to search for $��_�� \rightarrow ��_��$ oscillations in appearance mode i.e. through the direct observation of the $��$ lepton in $��_��$ charged current interactions. The experiment has taken data for five years, since 2008, with the CERN Neutrino to Gran Sasso beam. Previously, two $��_��$ candidates with a $��$ decaying into hadrons were observed in a sub-sample of data of the 2008-2011 runs. Here we report the observation of a third $��_��$ candidate in the $��^-\to��^-$ decay channel coming from the analysis of a sub-sample of the 2012 run. Taking into account the estimated background, the absence of $��_�� \rightarrow ��_��$ oscillations is excluded at the 3.4 $��$ level., 9 pages, 5 figures, 1 tables

Published
2014
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247. Emulsion sheet doublets as interface trackers for the OPERA experiment

Author

Anokhina, A., Aoki, S., Ariga, A., Arrabito, L., Autiero, D., Badertscher, A., Bay, F., Greggio, F.Bersani, Bertolin, A., Besnier, M., Bick, D., Bozza, C., Brugiere, T., Brugnera, R., Brunetti, G., Buontempo, S., Carrara, E., Cazes, A., Chaussard, L., Chernyavsky, M., Chiarella, V., Chon-Sen, N., Chukanov, A., Consiglio, L., Cozzi, M., Cuha, V., Dal Corso, F., D'Amato, G., D'Ambrosio, N., De Lellis, G., Declais, Y., De Serio, M., Di Capua, F., Di Ferdinando, D., Di Giovanni, A., Di Marco, N., Di Troia, C., Dmitrievski, S., Dominjon, A., Dracos, Marcos, Duchesneau, D., Dusini, S., Ebert, J., Egorov, O., Enikeev, R., Ereditato, Antonio, Esposito, L.S., Favier, J., Felici, G., Ferber, T., Fini, R., Frekers, D., Fukuda, T., Galkin, V.I., Galkin, V.A., Garfagnini, A., Giacomelli, G., Giorgini, M., Goellnitz, C., Goldberg, J., Golubkov, D., Gornushkin, Y., Grella, G., Grianti, F., Guler, M., Gusev, G., Gustavino, C., Hagner, Caren, Hara, T., Hierholzer, M., Hiramatsu, S., Hoshino, Kaoru, Ieva, M., Jakovcic, K., Janicsko Csathy, J., Janutta, B., Jollet, C., Juget, F., Kawai, T., Kazuyama, M., Kim, S.H., Knuesel, J., Kodama, K., Komatsu, M., Kose, U., Kreslo, I., Laktineh, I., Lazzaro, C., Lenkeit, J., Ljubicic, A., Longhin, Andrea, Lutter, G., Manai, K., Mandrioli, G., Marotta, A., Marteau, J., Matsuo, T., Matsuoka, H., Mauri, N., Meisel, F., Meregaglia, A., Messina, M., Migliozzi, P., Mikado, S., Miyamoto, S., Monacelli, Piero, Morishima, Kunihiro, Moser, U., Muciaccia, Maria Teresa, Naganawa, N., Naka, T., Nakamura, M., Nakamura, T., Nakano, T., Nikitina, V., Niwa, K., Nonoyama, Y., Ogawa, S., Osedlo, V., Ossetski, D., 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, Klaus P., Publichenko, P., Pupilli, F., Roganova, T., Rosa, G., Rostovtseva, I., Rubbia, A., Russo, A., Ryazhskaya, O., Ryzhikov, D., Sato, O., Sato, Y., Saveliev, V., Sazhina, G., Schembri, A., Scotto Lavina, L., Shibuya, H., Simone, S., Sioli, Max, Sirignano, C., Sirri, G., Song, J.S., Spinetti, M., Stanco, L., Starkov, N., Stipcevic, M., Strauss, T., Strolin, Paolo Emilio, Sugonyaev, V., Taira, Y., Takahashi, S., Tenti, M., Terranova, F., Tezuka, I., Tioukov, V., Tolun, P., Tsarev, V., Tufanli, S., Ushida, N., Vilain, P., Vladimirov, M., Votano, L., Vuilleumier, J.L., Wilquet, G., Wonsak, B., Wurtz, J., Yoon, C.S., Yoshida, J., Zaitsev, Y., Zemskova, S., Zghiche, Amina, Zimmermann, R., Anokhina, A, Aoki, S, Ariga, A, Arrabito, L, Autiero, D, Badertscher, A, Bay, F, Greggio, F, Bertolin, A, Besnier, M, Bick, D, Bozza, C, Brugiere, T, Brugnera, R, Brunetti, G, Buontempo, S, Carrara, E, Cazes, A, Chaussard, L, Chernyavsky, M, Chiarella, V, Chon-Sen, N, Chukanov, A, Consiglio, L, Cozzi, M, Cuha, V, Dal Corso, F, D'Amato, G, D'Ambrosio, N, De Lellis, G, Déclais, Y, De Serio, M, Di Capua, F, Di Ferdinando, D, Di Giovanni, A, Di Marco, N, Di Troia, C, Dmitrievski, S, Dominjon, A, Dracos, M, Duchesneau, D, Dusini, S, Ebert, J, Egorov, O, Enikeev, R, Ereditato, A, Esposito, L, Favier, J, Felici, G, Ferber, T, Fini, R, Frekers, D, Fukuda, T, Galkin, V, Garfagnini, A, Giacomelli, G, Giorgini, M, Goellnitz, C, Goldberg, J, Golubkov, D, Gornushkin, Y, Grella, G, Grianti, F, Guler, M, Gusev, G, Gustavino, C, Hagner, C, Hara, T, Hierholzer, M, Hiramatsu, S, Hoshino, K, Ieva, M, Jakovcic, K, Janicsko Csathy, J, Janutta, B, Jollet, C, Juget, F, Kawai, T, Kazuyama, M, Kim, S, Knuesel, J, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laktineh, I, Lazzaro, C, Lenkeit, J, Ljubicic, A, Longhin, A, Lutter, G, Manai, K, Mandrioli, G, Marotta, A, Marteau, J, Matsuo, T, Matsuoka, H, Mauri, N, Meisel, F, Meregaglia, A, Messina, M, Migliozzi, P, Mikado, S, Miyamoto, S, Monacelli, P, Morishima, K, Moser, U, Muciaccia, M, Naganawa, N, Naka, T, Nakamura, M, Nakamura, T, Nakano, T, Nikitina, V, Niwa, K, Nonoyama, Y, Ogawa, S, Osedlo, V, Ossetski, D, Paoloni, A, Park, B, Park, I, Pastore, A, Patrizii, L, Pennacchio, E, Pessard, H, Pilipenko, V, Pistillo, C, Polukhina, N, Pozzato, M, Pretzl, K, Publichenko, P, Pupilli, F, Roganova, T, Rosa, G, Rostovtseva, I, Rubbia, A, Russo, A, Ryazhskaya, O, Ryzhikov, D, Sato, O, Sato, Y, Saveliev, V, Sazhina, G, Schembri, A, Scotto Lavina, L, Shibuya, H, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Song, J, Spinetti, M, Stanco, L, Starkov, N, Stipcevic, M, Strauss, T, Strolin, P, Sugonyaev, V, Taira, Y, Takahashi, S, Tenti, M, Terranova, F, Tezuka, I, Tioukov, V, Tolun, P, Tsarev, V, Tufanli, S, Ushida, N, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, J, Wilquet, G, Wonsak, B, Yoon, C, Yoshida, J, Zaitsev, Y, Zemskova, S, Zghiche, A, Zimmermann, R, Institut de Physique Nucléaire de Lyon (IPNL), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Département Recherches Subatomiques (DRS-IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Louis Pasteur - Strasbourg I-Centre National de la Recherche Scientifique (CNRS), OPERA, A. ANOKHINA, S. AOKI, A. ARIGA, L. ARRABITO, D. AUTIERO, A. BADERTSCHER, F. BAY, F. BERSANI GREGGIO, A. BERTOLIN, M. BESNIER, D. BICK, C. BOZZA, T. BRUGIERE, R. BRUGNERA, G. BRUNETTI, S. BUONTEMPO, E. CARRARA, A. CAZES, L. CHAUSSARD, M. CHERNYAVSKY, V. CHIARELLA, N. CHON-SEN, A. CHUKANOV, L. CONSIGLIO, M. COZZI, V. CUHA, F. DAL CORSO, G. D’AMATO, N. D’AMBROSIO, G. DE LELLIS, Y. DÉCLAIS, M. DE SERIO, F. DI CAPUA, D. DI FERDINANDO, A. DI GIOVANNI, N. DI MARCO, C. DI TROIA, S. DMITRIEVSKI, A. DOMINJON, M. DRACOS, D. DUCHESNEAU, S. DUSINI, J. EBERT, O. EGOROV, R. ENIKEEV, A. EREDITATO, L.S. ESPOSITO, J. FAVIER, G. FELICI, T. FERBER, R. FINI, D. FREKERS, T. FUKUDA, V.I. GALKIN, V.A. GALKIN, A. GARFAGNINI, G. GIACOMELLI, M. GIORGINI, C. GOELLNITZ, J. GOLDBERG, D. GOLUBKOV, Y. GORNUSHKIN, G. GRELLA, F. GRIANTI, M. GULER, G. GUSEV, C. GUSTAVINO, C. HAGNER, T. HARA, M. HIERHOLZER, S. HIRAMATSU, K. HOSHINO, M. IEVA, K. JAKOVCIC, J. JANICSKO CSATHY, B. JANUTTA, C. JOLLET, F. JUGET, T. KAWAI, M. KAZUYAMA, S. H. KIM, J. KNUESEL, K. KODAMA, M. KOMATSU, U. KOSE, I. KRESLO, I. LAKTINEH, C. LAZZARO, J. LENKEIT, A. LJUBICIC, A. LONGHIN, G. LUTTER, K. MANAI, G. MANDRIOLI, A. MAROTTA, J. MARTEAU, T. MATSUO, H. MATSUOKA, N. MAURI, F. MEISEL, A. MEREGAGLIA, M. MESSINA, P. MIGLIOZZI, S. MIKADO, S. MIYAMOTO, P. MONACELLI, K. MORISHIMA, U. MOSER, M.T. MUCIACCIA, N. NAGANAWA, T. NAKA, M. NAKAMURA, T. NAKAMURA, T. NAKANO, V. NIKITINA, K. NIWA, Y. NONOYAMA, S. OGAWA, V. OSEDLO, D. OSSETSKI, 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, T. ROGANOVA, G. ROSA, I. ROSTOVTSEVA, A. RUBBIA, A. RUSSO, O. RYAZHSKAYA, D. RYZHIKOV, O. SATO, Y. SATO, V. SAVELIEV, G. SAZHINA, A. SCHEMBRI, L. SCOTTO LAVINA, 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, V. SUGONYAEV, Y. TAIRA, S. TAKAHASHI, M. TENTI, F. TERRANOVA, I. TEZUKA, V. TIOUKOV, P. TOLUN, V. TSAREV, S. TUFANLI, N. USHIDA, P. VILAIN, M. VLADIMIROV, L. VOTANO, J.L. VUILLEUMIER, G. WILQUET, B. WONSAK, C. S. YOON, J. YOSHIDA, Y. ZAITSEV, S. ZEMSKOVA, A. ZGHICHE, R. ZIMMERMANN, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP/Laboratoire d'Annecy-le-Vieux de Physique des Particules), and Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)

Subjects
Physics - Instrumentation and Detectors, Materials science, Microscope, FISICA DEL NEUTRINO, FOS: Physical sciences, Electron, 01 natural sciences, law.invention, Optics, law, Tau neutrino, 0103 physical sciences, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], Detectors and Experimental Techniques, EMULSIONI NUCLEARI, Photographic emulsion, 010306 general physics, Instrumentation, Mathematical Physics, Interconnection, Detector design and construction technologies and material, 010308 nuclear & particles physics, business.industry, Detector, Instrumentation and Detectors (physics.ins-det), Sample (graphics), Particle tracking detector, Detector alignment and calibration methods (Lasers,Sources,Particle-beams), Large detector systems for particle and astroparticle physic, RIVELATORI IBRIDI, RIVELATORI DI PARTICELLE ELEMENTARI, Neutrino, business
Abstract

New methods for efficient and unambiguous interconnection between electronic counters and target units based on nuclear photographic emulsion films have been developed. The application to the OPERA experiment, that aims at detecting oscillations between mu neutrino and tau neutrino in the CNGS neutrino beam, is reported in this paper. In order to reduce background due to latent tracks collected before installation in the detector, on-site large-scale treatments of the emulsions ("refreshing") have been applied. Changeable Sheet (CSd) packages, each made of a doublet of emulsion films, have been designed, assembled and coupled to the OPERA target units ("ECC bricks"). A device has been built to print X-ray spots for accurate interconnection both within the CSd and between the CSd and the related ECC brick. Sample emulsion films have been extensively scanned with state-of-the-art automated optical microscopes. Efficient track-matching and powerful background rejection have been achieved in tests with electronically tagged penetrating muons. Further improvement of in-doublet film alignment was obtained by matching the pattern of low-energy electron tracks. The commissioning of the overall OPERA alignment procedure is in progress., Comment: 19 pages, 19 figures

Published
2008
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248. Emulsion sheet doublets as interface trackers for the OPERA experiment

Author

Anokhina, A. w, Aoki, S. q, Ariga, A. y, Arrabito, L. s, Autiero, D. s, Badertscher, A. al, Bay, F. a, Greggio, F. G. ai, Bertolin, A. ad, Besnier, M. b, Bick, D. n, Bozza, C. ag, Brugiere, T. s, Brugnera, R. ae, Brunetti, G. h, Buontempo, S. z, Carrara, E. ae, Cazes, A. k, Chaussard, L. s, Chernyavsky, M. v, Chiarella, V. k, Chon Sen, N. ah, Chukanov, A. z, Consiglio, L. h, Cozzi, M. h, Cuha, V. a, Dal Corso, F. ad, D'Amato, G. ag, D'Ambrosio, N. c, De Lellis, G. aa, Déclais, Y. s, De Serio, M. e, z, Di Ferdinando, D. g, Di Giovanni, A. r, Di Marco, N. r, Di Troia, C. k, Dmitrievski, S. j, Dominjon, A. s, Dracos, M. ah, Duchesneau, D. b, Dusini, S. ad, Ebert, J. n, Egorov, O. u, Enikeev, R. t, Ereditato, A. f, Esposito, L. S. c, Favier, J. b, Felici, G. k, Ferber, T. n, Fini, R. e, Frekers, D. x, Fukuda, T. y, Galkin, V. I. w, Galkin, V. A. ac, Garfagnini, A. ae, Giacomelli, G. h, Giorgini, M. h, Goellnitz, C. n, Goldberg, J. m, Golubkov, D. u, Gornushkin, Y. j, Grella, Grianti, F. ai, Guler, M. a, Gusev, G. v, Gustavino, C. c, Hagner, C. n, Hara, T. q, Hierholzer, M. n, Hiramatsu, S. y, Hoshino, K. y, Ieva, M. e, Jakovcic, K. ak, Janicsko Csathy, J. ab, Janutta, B. n, Jollet, C. ah, Juget, F. ab, Kawai, T. y, Kazuyama, M. y, Kim, S. H. oam, Knuesel, J. f, Kodama, K. p, Komatsu, M. y, Kose, U. a, Kreslo, I. f, Laktineh, I. s, Lazzaro, C. al, Lenkeit, J. n, Ljubicic, A. ak, Longhin, Lutter, G. ab, Manai, K. s, Mandrioli, G. g, Marotta, A. z, Marteau, J. s, Matsuo, T. l, Matsuoka, H. y, Mauri, N. h, Meisel, Meregaglia, A. ah, Messina, M. f, Migliozzi, P. z, Mikado, S. lan, Miyamoto, S. y, Monacelli, P. r, Morishima, K. y, Moser, U. f, Muciaccia, M. T. d, Naganawa, N. y, Naka, T. y, Nakamura, M. y, Nakamura, T. y, Nakano, T. y, Nikitina, V. w, Niwa, K. y, Nonoyama, Y. y, Ogawa, S. l, Osedlo, V. w, Ossetski, D. ac, Paoloni, A. k, Park, B. D. o, Park, I. G. o, Pastore, A. d, Patrizii, L. g, Pennacchio, E. s, Pessard, H. b, Pilipenko, V. x, Pistillo, C. f, Polukhina, N. v, Pozzato, M. h, Pretzl, K. f, Publichenko, P. w, Pupilli, F. r, Roganova, T. w, Rosa, G. af, Rostovtseva, I. u, Rubbia, Russo, A. z, Ryazhskaya, O. t, Ryzhikov, Sato, O. y, Sato, Y. aj, Saveliev, V. ac, Sazhina, G. w, Schembri, A. c, Scotto Lavina, L. z, Shibuya, H. l, Simone, S. d, Sioli, M. h, Sirignano, Sirri, G. g, Song, J. S. o, Spinetti, M. k, Stanco, L. ad, Starkov, N. v, Stipcevic, M. ak, Strauss, T. al, Strolin, P. aa, Sugonyaev, V. ad, Taira, Y. y, Takahashi, S. y, Tenti, M. h, Terranova, F. k, Tezuka, I. aj, Tioukov, V. z, Tolun, P. a, Tsarev, V. v, Tufanli, S. a, Ushida, N. p, Vilain, P. i, Vladimirov, M. v, Votano, L. k, Vuilleumier, J. L. ab, Wilquet, G. i, Wonsak, B. n, Yoon, C. S. o, Yoshida, J. y, Zaitsev, Y. u, Zemskova, S. j, Zghiche, A. b, Zimmermann, R. n., DI CAPUA, FRANCESCO, Anokhina, A. w, Aoki, S. q, Ariga, A. y, Arrabito, L., Autiero, D., Badertscher, A., Al, Bay, F. a, Greggio, F. G., Ai, Bertolin, A., Ad, Besnier, M. b, Bick, D. n, Bozza, C., Ag, Brugiere, T., Brugnera, R., Ae, Brunetti, G. h, Buontempo, S. z, Carrara, E., Ae, Cazes, A. k, Chaussard, L., Chernyavsky, M. v, Chiarella, V. k, Chon, Sen, N., Ah, Chukanov, A. z, Consiglio, L. h, Cozzi, M. h, Cuha, V. a, Dal, Corso, F., Ad, D'Amato, G., Ag, D'Ambrosio, N. c, De, Lelli, G., Aa, Déclais, Y., De, Serio, M., E., DI CAPUA, Francesco, Z, Di, Ferdinando, D., G., Di, Giovanni, A., R., Di, Marco, N., R., Di, Troia, C. k, Dmitrievski, S. j, Dominjon, A. s, Draco, M., Ah, Duchesneau, D. b, Dusini, S., Ad, Ebert, J. n, Egorov, O. u, Enikeev, R. t, Ereditato, A. f, Esposito, L. S. c, Favier, J. b, Felici, G. k, Ferber, T. n, Fini, R. e, Frekers, D. x, Fukuda, T. y, Galkin, V. I. w, Galkin, V. A., Ac, Garfagnini, A., Ae, Giacomelli, G. h, Giorgini, M. h, Goellnitz, C. n, Goldberg, J. m, Golubkov, D. u, Gornushkin, Y. j, Grella, Grianti, F., Ai, Guler, M. a, Gusev, G. v, Gustavino, C. c, Hagner, C. n, Hara, T. q, Hierholzer, M. n, Hiramatsu, S. y, Hoshino, K. y, Ieva, M. e, Jakovcic, K., Ak, Janicsko, Csathy, J., Ab, Janutta, B. n, Jollet, C., Ah, Juget, F., Ab, Kawai, T. y, Kazuyama, M. y, Kim, S. H., Oam, Knuesel, J. f, Kodama, K. p, Komatsu, M. y, Kose, U. a, Kreslo, I. f, Laktineh, I., Lazzaro, C., Al, Lenkeit, J. n, Ljubicic, A., Ak, Longhin, Lutter, G., Ab, Manai, K., Mandrioli, G. g, Marotta, A. z, Marteau, J., Matsuo, T. l, Matsuoka, H. y, Mauri, N. h, Meisel, Meregaglia, A., Ah, Messina, M. f, Migliozzi, P. z, Mikado, S., Lan, Miyamoto, S. y, Monacelli, P. r, Morishima, K. y, Moser, U. f, Muciaccia, M. 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L., Ab, Wilquet, G. i, Wonsak, B. n, Yoon, C. S. o, Yoshida, J. y, Zaitsev, Y. u, Zemskova, S. j, Zghiche, A. b, and Zimmermann, R. n.

Subjects
Detector alignment and calibration methods (Lasers,Sources,Particle-beams), Detector design and construction technologies and material, Particle tracking detectors, Large detector systems for particle and astroparticle physic
Abstract

New methods for efficient and unambiguous interconnection between electronic position sensitive detectors and target units based on nuclear photographic emulsion films have been developed. The application to the OPERA experiment,that aims at detecting Vμ⇋Vτoscillations in the CNGS neutrino beam,is reported in this paper. In order to reduce background due to latent tracks collected before installation in the detector,on-site large-scale treatments of the emulsions (“refreshing”) have been applied. Changeable Sheet (CSd) packages,each made of a doublet of emulsion films,have been designed,assembled and coupled to the OPERA target units (“ECC bricks”). A device has been built to print X-ray spots for accurate interconnection both within the CSd and between the CSd and the related ECC brick. Sample emulsion films have been extensively scanned with state-of-the-art automated optical microscopes. Efficient track-matching and powerful background rejection have been achieved in tests with electronically tagged penetrating muons. Further improvement of in-doublet film alignment was obtained by matching the pattern of low-energy electron tracks. The commissioning of the overall OPERA alignment procedure is in progress.

Published
2008

249. Intrinsic neutron background of nuclear emulsions for directional Dark Matter searches

Author

Alexandrov, A., primary, Asada, T., additional, Buonaura, A., additional, Consiglio, L., additional, D’Ambrosio, N., additional, De Lellis, G., additional, Di Crescenzo, A., additional, Di Marco, N., additional, Di Vacri, M.L., additional, Furuya, S., additional, Galati, G., additional, Gentile, V., additional, Katsuragawa, T., additional, Laubenstein, M., additional, Lauria, A., additional, Loverre, P.F., additional, Machii, S., additional, Monacelli, P., additional, Montesi, M.C., additional, Naka, T., additional, Pupilli, F., additional, Rosa, G., additional, Sato, O., additional, Strolin, P., additional, Tioukov, V., additional, Umemoto, A., additional, and Yoshimoto, M., additional

Published
2016
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