Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment

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. Büttner; M. Chernyavsky; A. Chukanov; L. Consiglio; N. D'Ambrosio; G. De Lellis; M. De Serio; P. Del Amo Sanchez; A. Di Crescenzo; D. Di Ferdinando; N. Di Marco; S. Dmitrievski; M. Dracos; D. Duchesneau; S. Dusini; T. Dzhatdoev; J. Ebert; A. Ereditato; R. A. Fini; T. Fukuda; G. Galati; A. Garfagnini; G. Giacomelli; C. Göllnitz; J. Goldberg; D. Goloubkov; 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. Koseg; 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; M. Meyer; 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; I. Rostovtseva; O. Ryazhskaya; O. Sato; Y. 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; Y. Zaitsev; S. Zemskova; A. Zghiche

doi:10.1088/1748-0221/11/07/P07022

Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment

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. Büttner, M. Chernyavsky, A. Chukanov, L. Consiglio, N. D'Ambrosio, G. De Lellis, M. De Serio, P. Del Amo SanchezA. Di Crescenzo, D. Di Ferdinando, N. Di Marco, S. Dmitrievski, M. Dracos, D. Duchesneau, S. Dusini, T. Dzhatdoev, J. Ebert, A. Ereditato, R. A. Fini, T. Fukuda, G. Galati, A. Garfagnini, G. Giacomelli, C. Göllnitz, J. Goldberg, D. Goloubkov, 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. Koseg, 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, M. Meyer, 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, I. Rostovtseva, O. Ryazhskaya, O. Sato, Y. 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, Y. Zaitsev, S. Zemskova, A. Zghiche

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

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.

Original language	English
Article number	P07022
Journal	Journal of Instrumentation
Volume	11
Issue number	7
DOIs	https://doi.org/10.1088/1748-0221/11/07/P07022
Publication status	Published - Jul 25 2016
Externally published	Yes

All Science Journal Classification (ASJC) codes

Instrumentation
Mathematical Physics

Access to Document

10.1088/1748-0221/11/07/P07022

Cite this

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., ... Zghiche, A. (2016). Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment. Journal of Instrumentation, 11(7), Article P07022. https://doi.org/10.1088/1748-0221/11/07/P07022

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, RA, Fukuda, T, Galati, G, Garfagnini, A, Giacomelli, G, Göllnitz, 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, JH, Kim, SH, Kitagawa, N, Klicek, B, Kodama, K, Komatsu, M, Koseg, 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, MC, Morishima, K, Muciaccia, MT, 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, BD, Park, IG, 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, SM, Stipcevic, M, Strolin, P, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Tufanli, S, Vilain, P, Vladimirov, M, Votano, L, Vuilleumier, JL, Wilquet, G, Wonsak, B, Yoon, CS, Zaitsev, Y, Zemskova, S & Zghiche, A 2016, 'Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment', Journal of Instrumentation, vol. 11, no. 7, P07022. https://doi.org/10.1088/1748-0221/11/07/P07022

@article{a095ab0f6c35466793febaaaed6e9ea7,

title = "Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment",

abstract = "The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of ντ in the CNGS νμ beam. Two large muon magnetic spectrometers are used to identify muons produced in the τ leptonic decay and in νμ 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 νμ 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.",

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

note = "Funding Information: We thank CERN for the successful operation of the CNGS facility and INFN for the continuous support given to the experiment through its LNGS laboratory. We acknowledge funding from our national agencies: Fonds de la Recherche Scientifique-FNRS and Institut Interuniversitaire des Sciences Nucl{\'e}aires for Belgium, MoSES for Croatia, CNRS and IN2P3 for France, BMBF for Germany, INFN for Italy, JSPS, MEXT, QFPU (Global COE programme of Nagoya University) and Promotion and Mutual Aid Corporation for Private Schools of Japan for Japan, SNF, the University of Bern and ETH Zurich for Switzerland, the Russian Foundation for Basic Research (grant 12-02-12142 ofim, 15-02-01056_a), the Program for the Support of Leading Scientific School, contract SS 3110.2014.2, the Presidium of the Russian Academy of Sciences basic research program Fundamental Properties of Matter and Astrophysics, and the Ministry of Education and Science of the Russian Federation for Russia, and the National Research Foundation of Korea Grant No. 2011-0029457 for Korea. The authors would also like to thank Laura Vanhoefer for fruitful discussions and comments. B.B. and M.M. would also like to thank Ann Fielding for language support.",

year = "2016",

month = jul,

day = "25",

doi = "10.1088/1748-0221/11/07/P07022",

language = "English",

volume = "11",

journal = "Journal of Instrumentation",

issn = "1748-0221",

publisher = "IOP Publishing Ltd.",

number = "7",

}

TY - JOUR

T1 - Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment

AU - Agafonova, N.

AU - Aleksandrov, A.

AU - Anokhina, A.

AU - Aoki, S.

AU - Ariga, A.

AU - Ariga, T.

AU - Bender, D.

AU - Bertolin, A.

AU - Bozza, C.

AU - Brugnera, R.

AU - Buonaura, A.

AU - Buontempo, S.

AU - Büttner, B.

AU - Chernyavsky, M.

AU - Chukanov, A.

AU - Consiglio, L.

AU - D'Ambrosio, N.

AU - De Lellis, G.

AU - De Serio, M.

AU - Del Amo Sanchez, P.

AU - Di Crescenzo, A.

AU - Di Ferdinando, D.

AU - Di Marco, N.

AU - Dmitrievski, S.

AU - Dracos, M.

AU - Duchesneau, D.

AU - Dusini, S.

AU - Dzhatdoev, T.

AU - Ebert, J.

AU - Ereditato, A.

AU - Fini, R. A.

AU - Fukuda, T.

AU - Galati, G.

AU - Garfagnini, A.

AU - Giacomelli, G.

AU - Göllnitz, C.

AU - Goldberg, J.

AU - Goloubkov, D.

AU - Gornushkin, Y.

AU - Grella, G.

AU - Guler, M.

AU - Gustavino, C.

AU - Hagner, C.

AU - Hara, T.

AU - Hollnagel, A.

AU - Hosseini, B.

AU - Ishida, H.

AU - Ishiguro, K.

AU - Jakovcic, K.

AU - Jollet, C.

AU - Kamiscioglu, C.

AU - Kamiscioglu, M.

AU - Kawada, J.

AU - Kim, J. H.

AU - Kim, S. H.

AU - Kitagawa, N.

AU - Klicek, B.

AU - Kodama, K.

AU - Komatsu, M.

AU - Koseg, U.

AU - Kreslo, I.

AU - Lauria, A.

AU - Lenkeit, J.

AU - Ljubicic, A.

AU - Longhin, A.

AU - Loverre, P.

AU - Malgin, A.

AU - Malenica, M.

AU - Mandrioli, G.

AU - Matsuo, T.

AU - Matveev, V.

AU - Mauri, N.

AU - Medinaceli, E.

AU - Meregaglia, A.

AU - Meyer, M.

AU - Mikado, S.

AU - Monacelli, P.

AU - Montesi, M. C.

AU - Morishima, K.

AU - Muciaccia, M. T.

AU - Naganawa, N.

AU - Naka, T.

AU - Nakamura, M.

AU - Nakano, T.

AU - Nakatsuka, Y.

AU - Niwa, K.

AU - Ogawa, S.

AU - Okateva, N.

AU - Olshevsky, A.

AU - Omura, T.

AU - Ozaki, K.

AU - Paoloni, A.

AU - Park, B. D.

AU - Park, I. G.

AU - Pasqualini, L.

AU - Pastore, A.

AU - Patrizii, L.

AU - Pessard, H.

AU - Pistillo, C.

AU - Podgrudkov, D.

AU - Polukhina, N.

AU - Pozzato, M.

AU - Pupilli, F.

AU - Roda, M.

AU - Rokujo, H.

AU - Roganova, T.

AU - Rosa, G.

AU - Rostovtseva, I.

AU - Ryazhskaya, O.

AU - Sato, O.

AU - Sato, Y.

AU - Schembri, A.

AU - Shakiryanova, I.

AU - Shchedrina, T.

AU - Sheshukov, A.

AU - Shibuya, H.

AU - Shiraishi, T.

AU - Shoziyoev, G.

AU - Simone, S.

AU - Sioli, M.

AU - Sirignano, C.

AU - Sirri, G.

AU - Spinetti, M.

AU - Stanco, L.

AU - Starkov, N.

AU - Stellacci, S. M.

AU - Stipcevic, M.

AU - Strolin, P.

AU - Takahashi, S.

AU - Tenti, M.

AU - Terranova, F.

AU - Tioukov, V.

AU - Tufanli, S.

AU - Vilain, P.

AU - Vladimirov, M.

AU - Votano, L.

AU - Vuilleumier, J. L.

AU - Wilquet, G.

AU - Wonsak, B.

AU - Yoon, C. S.

AU - Zaitsev, Y.

AU - Zemskova, S.

AU - Zghiche, A.

N1 - Funding Information: We thank CERN for the successful operation of the CNGS facility and INFN for the continuous support given to the experiment through its LNGS laboratory. We acknowledge funding from our national agencies: Fonds de la Recherche Scientifique-FNRS and Institut Interuniversitaire des Sciences Nucléaires for Belgium, MoSES for Croatia, CNRS and IN2P3 for France, BMBF for Germany, INFN for Italy, JSPS, MEXT, QFPU (Global COE programme of Nagoya University) and Promotion and Mutual Aid Corporation for Private Schools of Japan for Japan, SNF, the University of Bern and ETH Zurich for Switzerland, the Russian Foundation for Basic Research (grant 12-02-12142 ofim, 15-02-01056_a), the Program for the Support of Leading Scientific School, contract SS 3110.2014.2, the Presidium of the Russian Academy of Sciences basic research program Fundamental Properties of Matter and Astrophysics, and the Ministry of Education and Science of the Russian Federation for Russia, and the National Research Foundation of Korea Grant No. 2011-0029457 for Korea. The authors would also like to thank Laura Vanhoefer for fruitful discussions and comments. B.B. and M.M. would also like to thank Ann Fielding for language support.

PY - 2016/7/25

Y1 - 2016/7/25

N2 - The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of ντ in the CNGS νμ beam. Two large muon magnetic spectrometers are used to identify muons produced in the τ leptonic decay and in νμ 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 νμ 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.

AB - The OPERA long-baseline neutrino-oscillation experiment has observed the direct appearance of ντ in the CNGS νμ beam. Two large muon magnetic spectrometers are used to identify muons produced in the τ leptonic decay and in νμ 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 νμ 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.

UR - http://www.scopus.com/inward/record.url?scp=85029637170&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85029637170&partnerID=8YFLogxK

U2 - 10.1088/1748-0221/11/07/P07022

DO - 10.1088/1748-0221/11/07/P07022

M3 - Article

AN - SCOPUS:85029637170

SN - 1748-0221

VL - 11

JO - Journal of Instrumentation

JF - Journal of Instrumentation

IS - 7

M1 - P07022

ER -

Determination of the muon charge sign with the dipolar spectrometers of the OPERA experiment

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