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Measurement of the atmospheric muon charge ratio with the OPERA detector
The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for s...
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Lenguaje: | eng |
Publicado: |
2010
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1140/epjc/s10052-010-1284-8 http://cds.cern.ch/record/1248146 |
_version_ | 1780919550637768704 |
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author | Agafonova, N. Anokhina, A. Aoki, S. Ariga, A. Ariga, T. Autiero, D. Badertscher, A. Bagulya, A. Bertolin, A. Besnier, M. Bick, D. Boyarkin, V. Bozza, C. Brugiere, T. Brugnera, R. Brunetti, G. Buontempo, S. 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. Declais, Y. De Serio, M. Di Capua, F. Di Ferdinando, D. Di Giovanni, A. Di Marco, N. Dmitrievski, S. 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. Garfagnini, A. Giacomelli, G. Giorgini, M. Goellnitz, C. Goldberg, J. Golubkov, D. Goncharova, L. Gornushkin, Y. Grella, G. Grianti, F. Guler, M. Gustavino, C. Hagner, C. Hamada, K. Hara, T. Hierholzer, M. Hoshino, K. Ieva, M. Jakovcic, K. Jollet, C. Juget, F. Kazuyama, M. Kim, S.H. Kimura, M. Klicek, B. Knuesel, J. Kodama, K. Komatsu, M. Kose, U. Kreslo, I. Kubota, H. Lazzaro, C. Lenkeit, J. Ljubicic, A. Longhin, A. Lutter, G. Malgin, A. Mandrioli, G. 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. Naumov, D. Nikitina, V. Niwa, K. Nonoyama, Y. Ogawa, S. Olchevski, A. Oldorf, C. 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. Policastro, G. Polukhina, N. Pozzato, M. Pretzl, K. Publichenko, P. Pupilli, F. Rescigno, R. Roganova, T. Rokujo, H. Romano, G. Rosa, G. Rostovtseva, I. Rubbia, A. Russo, A. Ryasny, V. Ryazhskaya, O. 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. Takahashi, S. Tenti, M. Terranova, F. Tezuka, I. Tioukov, V. Tolun, P. Tran, T. Tufanli, S. Vilain, P. Vladimirov, M. Votano, L. Vuilleumier, J.L. Wilquet, G. Wonsak, B. Yakushev, V. Yoon, C.S. Yoshioka, T. Yoshida, J. Zaitsev, Y. Zemskova, S. Zghiche, A. Zimmermann, R. |
author_facet | Agafonova, N. Anokhina, A. Aoki, S. Ariga, A. Ariga, T. Autiero, D. Badertscher, A. Bagulya, A. Bertolin, A. Besnier, M. Bick, D. Boyarkin, V. Bozza, C. Brugiere, T. Brugnera, R. Brunetti, G. Buontempo, S. 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. Declais, Y. De Serio, M. Di Capua, F. Di Ferdinando, D. Di Giovanni, A. Di Marco, N. Dmitrievski, S. 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. Garfagnini, A. Giacomelli, G. Giorgini, M. Goellnitz, C. Goldberg, J. Golubkov, D. Goncharova, L. Gornushkin, Y. Grella, G. Grianti, F. Guler, M. Gustavino, C. Hagner, C. Hamada, K. Hara, T. Hierholzer, M. Hoshino, K. Ieva, M. Jakovcic, K. Jollet, C. Juget, F. Kazuyama, M. Kim, S.H. Kimura, M. Klicek, B. Knuesel, J. Kodama, K. Komatsu, M. Kose, U. Kreslo, I. Kubota, H. Lazzaro, C. Lenkeit, J. Ljubicic, A. Longhin, A. Lutter, G. Malgin, A. Mandrioli, G. 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. Naumov, D. Nikitina, V. Niwa, K. Nonoyama, Y. Ogawa, S. Olchevski, A. Oldorf, C. 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. Policastro, G. Polukhina, N. Pozzato, M. Pretzl, K. Publichenko, P. Pupilli, F. Rescigno, R. Roganova, T. Rokujo, H. Romano, G. Rosa, G. Rostovtseva, I. Rubbia, A. Russo, A. Ryasny, V. Ryazhskaya, O. 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. Takahashi, S. Tenti, M. Terranova, F. Tezuka, I. Tioukov, V. Tolun, P. Tran, T. Tufanli, S. Vilain, P. Vladimirov, M. Votano, L. Vuilleumier, J.L. Wilquet, G. Wonsak, B. Yakushev, V. Yoon, C.S. Yoshioka, T. Yoshida, J. Zaitsev, Y. Zemskova, S. Zghiche, A. Zimmermann, R. |
author_sort | Agafonova, N. |
collection | CERN |
description | The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the charge ratio dependence on the primary composition. The measured charge ratio values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy". A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum. |
id | cern-1248146 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2010 |
record_format | invenio |
spelling | cern-12481462023-04-04T03:13:12Zdoi:10.1140/epjc/s10052-010-1284-8http://cds.cern.ch/record/1248146engAgafonova, N.Anokhina, A.Aoki, S.Ariga, A.Ariga, T.Autiero, D.Badertscher, A.Bagulya, A.Bertolin, A.Besnier, M.Bick, D.Boyarkin, V.Bozza, C.Brugiere, T.Brugnera, R.Brunetti, G.Buontempo, S.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.Declais, Y.De Serio, M.Di Capua, F.Di Ferdinando, D.Di Giovanni, A.Di Marco, N.Dmitrievski, S.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.Garfagnini, A.Giacomelli, G.Giorgini, M.Goellnitz, C.Goldberg, J.Golubkov, D.Goncharova, L.Gornushkin, Y.Grella, G.Grianti, F.Guler, M.Gustavino, C.Hagner, C.Hamada, K.Hara, T.Hierholzer, M.Hoshino, K.Ieva, M.Jakovcic, K.Jollet, C.Juget, F.Kazuyama, M.Kim, S.H.Kimura, M.Klicek, B.Knuesel, J.Kodama, K.Komatsu, M.Kose, U.Kreslo, I.Kubota, H.Lazzaro, C.Lenkeit, J.Ljubicic, A.Longhin, A.Lutter, G.Malgin, A.Mandrioli, G.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.Naumov, D.Nikitina, V.Niwa, K.Nonoyama, Y.Ogawa, S.Olchevski, A.Oldorf, C.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.Policastro, G.Polukhina, N.Pozzato, M.Pretzl, K.Publichenko, P.Pupilli, F.Rescigno, R.Roganova, T.Rokujo, H.Romano, G.Rosa, G.Rostovtseva, I.Rubbia, A.Russo, A.Ryasny, V.Ryazhskaya, O.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.Takahashi, S.Tenti, M.Terranova, F.Tezuka, I.Tioukov, V.Tolun, P.Tran, T.Tufanli, S.Vilain, P.Vladimirov, M.Votano, L.Vuilleumier, J.L.Wilquet, G.Wonsak, B.Yakushev, V.Yoon, C.S.Yoshioka, T.Yoshida, J.Zaitsev, Y.Zemskova, S.Zghiche, A.Zimmermann, R.Measurement of the atmospheric muon charge ratio with the OPERA detectorParticle Physics - ExperimentThe OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the charge ratio dependence on the primary composition. The measured charge ratio values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the "vertical surface energy". A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum.The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio in the TeV energy region. We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the charge ratio dependence on the primary composition. The measured charge ratio values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the 'vertical surface energy'. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum.arXiv:1003.1907oai:cds.cern.ch:12481462010-03-10 |
spellingShingle | Particle Physics - Experiment Agafonova, N. Anokhina, A. Aoki, S. Ariga, A. Ariga, T. Autiero, D. Badertscher, A. Bagulya, A. Bertolin, A. Besnier, M. Bick, D. Boyarkin, V. Bozza, C. Brugiere, T. Brugnera, R. Brunetti, G. Buontempo, S. 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. Declais, Y. De Serio, M. Di Capua, F. Di Ferdinando, D. Di Giovanni, A. Di Marco, N. Dmitrievski, S. 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. Garfagnini, A. Giacomelli, G. Giorgini, M. Goellnitz, C. Goldberg, J. Golubkov, D. Goncharova, L. Gornushkin, Y. Grella, G. Grianti, F. Guler, M. Gustavino, C. Hagner, C. Hamada, K. Hara, T. Hierholzer, M. Hoshino, K. Ieva, M. Jakovcic, K. Jollet, C. Juget, F. Kazuyama, M. Kim, S.H. Kimura, M. Klicek, B. Knuesel, J. Kodama, K. Komatsu, M. Kose, U. Kreslo, I. Kubota, H. Lazzaro, C. Lenkeit, J. Ljubicic, A. Longhin, A. Lutter, G. Malgin, A. Mandrioli, G. 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. Naumov, D. Nikitina, V. Niwa, K. Nonoyama, Y. Ogawa, S. Olchevski, A. Oldorf, C. 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. Policastro, G. Polukhina, N. Pozzato, M. Pretzl, K. Publichenko, P. Pupilli, F. Rescigno, R. Roganova, T. Rokujo, H. Romano, G. Rosa, G. Rostovtseva, I. Rubbia, A. Russo, A. Ryasny, V. Ryazhskaya, O. 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. Takahashi, S. Tenti, M. Terranova, F. Tezuka, I. Tioukov, V. Tolun, P. Tran, T. Tufanli, S. Vilain, P. Vladimirov, M. Votano, L. Vuilleumier, J.L. Wilquet, G. Wonsak, B. Yakushev, V. Yoon, C.S. Yoshioka, T. Yoshida, J. Zaitsev, Y. Zemskova, S. Zghiche, A. Zimmermann, R. Measurement of the atmospheric muon charge ratio with the OPERA detector |
title | Measurement of the atmospheric muon charge ratio with the OPERA detector |
title_full | Measurement of the atmospheric muon charge ratio with the OPERA detector |
title_fullStr | Measurement of the atmospheric muon charge ratio with the OPERA detector |
title_full_unstemmed | Measurement of the atmospheric muon charge ratio with the OPERA detector |
title_short | Measurement of the atmospheric muon charge ratio with the OPERA detector |
title_sort | measurement of the atmospheric muon charge ratio with the opera detector |
topic | Particle Physics - Experiment |
url | https://dx.doi.org/10.1140/epjc/s10052-010-1284-8 http://cds.cern.ch/record/1248146 |
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measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT matveevv measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT maurin measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT medinacelie measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT meiself measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT meregagliaa measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT migliozzip measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT mikados measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT miyamotos measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT monacellip measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT morishimak measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT moseru measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT muciacciamt measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT naganawan measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT nakat measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT nakamuram measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT nakanot measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT naumovd measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT nikitinav measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT niwak measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT nonoyamay measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT ogawas measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT olchevskia measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT oldorfc measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT orlovag measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT osedlov measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT panicciam measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT paolonia measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT parkbd measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT parkig measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pastorea measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT patriziil measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pennacchioe measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pessardh measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pilipenkov measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pistilloc measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT policastrog measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT polukhinan measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pozzatom measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pretzlk measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT publichenkop measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT pupillif measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT rescignor measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT roganovat measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT rokujoh measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT romanog measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT rosag measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT rostovtsevai measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT rubbiaa measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT russoa measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT ryasnyv measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT ryazhskayao measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT satoo measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT satoy measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT schembria measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT schmidtparzefallw measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT schroederh measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT scottolavinal measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT sheshukova measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT shibuyah measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT simones measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT siolim measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT sirignanoc measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT sirrig measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT songjs measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT spinettim measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT stancol measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT starkovn measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT stipcevicm measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT strausst measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT strolinp measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT takahashis measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT tentim measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT terranovaf measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT tezukai measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT tioukovv measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT tolunp measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT trant measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT tufanlis measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT vilainp measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT vladimirovm measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT votanol measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT vuilleumierjl measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT wilquetg measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT wonsakb measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT yakushevv measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT yooncs measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT yoshiokat measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT yoshidaj measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT zaitsevy measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT zemskovas measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT zghichea measurementoftheatmosphericmuonchargeratiowiththeoperadetector AT zimmermannr measurementoftheatmosphericmuonchargeratiowiththeoperadetector |