Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment

N. Agafonova; A. Aleksandrov; A. Anokhina; S. Aoki; A. Ariga; T. Ariga; D. Bender; A. Bertolin; I. Bodnarchuk; 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; F. Fornari; T. Fukuda; G. Galati; A. Garfagnini; J. Goldberg; Y. Gornushkin; G. Grella; A. M. Guler; C. Gustavino; C. Hagner; T. Hara; H. Hayakawa; A. Hollnagel; B. Hosseini; K. Ishiguro; K. Jakovcic; C. Jollet; C. Kamiscioglu; M. Kamiscioglu; J. H. Kim; S. H. Kim; N. Kitagawa; B. Klicek; K. Kodama; M. Komatsu; U. Kose; I. Kreslo; F. Laudisio; A. Lauria; A. Ljubicic; A. Longhin; P. F. Loverre; A. Malgin; M. Malenica; G. Mandrioli; T. Matsuo; T. Matsushita; V. Matveev; N. Mauri; E. Medinaceli; A. Meregaglia; S. Mikado; M. Miyanishi; F. Mizutani; P. Monacelli; M. C. Montesi; K. Morishima; M. T. Muciaccia; N. Naganawa; T. Naka; M. Nakamura; T. Nakano; Y. Nakatsuka; K. Niwa; S. Ogawa; A. Olchevsky; T. Omura; K. Ozaki; A. Paoloni; L. Paparella; 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; T. Roganova; H. Rokujo; G. Rosa; O. Ryazhskaya; O. Sato; A. Schembri; W. Schmidt-Parzefall; I. Shakirianova; T. Shchedrina; A. Sheshukov; H. Shibuya; T. Shiraishi; G. Shoziyoev; S. Simone; M. Sioli; C. Sirignano; G. Sirri; A. Sotnikov; 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. Vladymyrov; L. Votano; J. L. Vuilleumier; G. Wilquet; B. Wonsak; C. S. Yoon; S. Zemskova

doi:10.1103/PhysRevLett.115.121802

Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment

N. Agafonova, A. Aleksandrov, A. Anokhina, S. Aoki, A. Ariga, T. Ariga, D. Bender, A. Bertolin, I. Bodnarchuk, C. Bozza, R. Brugnera, A. Buonaura, S. Buontempo, B. Büttner, M. Chernyavsky, A. Chukanov, L. Consiglio, N. D'Ambrosio, G. De Lellis, M. De SerioP. 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, F. Fornari, T. Fukuda, G. Galati, A. Garfagnini, J. Goldberg, Y. Gornushkin, G. Grella, A. M. Guler, C. Gustavino, C. Hagner, T. Hara, H. Hayakawa, A. Hollnagel, B. Hosseini, K. Ishiguro, K. Jakovcic, C. Jollet, C. Kamiscioglu, M. Kamiscioglu, J. H. Kim, S. H. Kim, N. Kitagawa, B. Klicek, K. Kodama, M. Komatsu, U. Kose, I. Kreslo, F. Laudisio, A. Lauria, A. Ljubicic, A. Longhin, P. F. Loverre, A. Malgin, M. Malenica, G. Mandrioli, T. Matsuo, T. Matsushita, V. Matveev, N. Mauri, E. Medinaceli, A. Meregaglia, S. Mikado, M. Miyanishi, F. Mizutani, P. Monacelli, M. C. Montesi, K. Morishima, M. T. Muciaccia, N. Naganawa, T. Naka, M. Nakamura, T. Nakano, Y. Nakatsuka, K. Niwa, S. Ogawa, A. Olchevsky, T. Omura, K. Ozaki, A. Paoloni, L. Paparella, 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, T. Roganova, H. Rokujo, G. Rosa, O. Ryazhskaya, O. Sato, A. Schembri, W. Schmidt-Parzefall, I. Shakirianova, T. Shchedrina, A. Sheshukov, H. Shibuya, T. Shiraishi, G. Shoziyoev, S. Simone, M. Sioli, C. Sirignano, G. Sirri, A. Sotnikov, 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. Vladymyrov, L. Votano, J. L. Vuilleumier, G. Wilquet, B. Wonsak, C. S. Yoon, S. Zemskova

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

154 Citations (Scopus)

Abstract

The OPERA experiment was designed to search for νμ→ντ oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ντ interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the νμ→ντ appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ντ candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of νμ→ντ oscillations in appearance mode with a significance larger than 5σ.

Original language	English
Article number	121802
Journal	Physical Review Letters
Volume	115
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.115.121802
Publication status	Published - Sept 17 2015
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.115.121802

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Agafonova, N., Aleksandrov, A., Anokhina, A., Aoki, S., Ariga, A., Ariga, T., Bender, D., Bertolin, A., Bodnarchuk, I., Bozza, C., Brugnera, R., Buonaura, A., Buontempo, S., Büttner, B., Chernyavsky, M., Chukanov, A., Consiglio, L., D'Ambrosio, N., De Lellis, G., ... Zemskova, S. (2015). Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment. Physical Review Letters, 115(12), [121802]. https://doi.org/10.1103/PhysRevLett.115.121802

Agafonova, N, Aleksandrov, A, Anokhina, A, Aoki, S, Ariga, A, Ariga, T, Bender, D, Bertolin, A, Bodnarchuk, I, 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, Fornari, F, Fukuda, T, Galati, G, Garfagnini, A, Goldberg, J, Gornushkin, Y, Grella, G, Guler, AM, Gustavino, C, Hagner, C, Hara, T, Hayakawa, H, Hollnagel, A, Hosseini, B, Ishiguro, K, Jakovcic, K, Jollet, C, Kamiscioglu, C, Kamiscioglu, M, Kim, JH, Kim, SH, Kitagawa, N, Klicek, B, Kodama, K, Komatsu, M, Kose, U, Kreslo, I, Laudisio, F, Lauria, A, Ljubicic, A, Longhin, A, Loverre, PF, Malgin, A, Malenica, M, Mandrioli, G, Matsuo, T, Matsushita, T, Matveev, V, Mauri, N, Medinaceli, E, Meregaglia, A, Mikado, S, Miyanishi, M, Mizutani, F, Monacelli, P, Montesi, MC, Morishima, K, Muciaccia, MT, Naganawa, N, Naka, T, Nakamura, M, Nakano, T, Nakatsuka, Y, Niwa, K, Ogawa, S, Olchevsky, A, Omura, T, Ozaki, K, Paoloni, A, Paparella, L, Park, BD, Park, IG, 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, Schmidt-Parzefall, W, Shakirianova, I, Shchedrina, T, Sheshukov, A, Shibuya, H, Shiraishi, T, Shoziyoev, G, Simone, S, Sioli, M, Sirignano, C, Sirri, G, Sotnikov, A, Spinetti, M, Stanco, L, Starkov, N, Stellacci, SM, Stipcevic, M, Strolin, P, Takahashi, S, Tenti, M, Terranova, F, Tioukov, V, Tufanli, S, Vilain, P, Vladymyrov, M, Votano, L, Vuilleumier, JL, Wilquet, G, Wonsak, B, Yoon, CS & Zemskova, S 2015, 'Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment', Physical Review Letters, vol. 115, no. 12, 121802. https://doi.org/10.1103/PhysRevLett.115.121802

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title = "Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment",

abstract = "The OPERA experiment was designed to search for νμ→ντ oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ντ interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the νμ→ντ appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ντ candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of νμ→ντ oscillations in appearance mode with a significance larger than 5σ.",

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 I. Bodnarchuk 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 F. Fornari and T. Fukuda and G. Galati and A. Garfagnini and J. Goldberg and Y. Gornushkin and G. Grella and Guler, {A. M.} and C. Gustavino and C. Hagner and T. Hara and H. Hayakawa and A. Hollnagel and B. Hosseini and K. Ishiguro and K. Jakovcic and C. Jollet and C. Kamiscioglu and M. Kamiscioglu and Kim, {J. H.} and Kim, {S. H.} and N. Kitagawa and B. Klicek and K. Kodama and M. Komatsu and U. Kose and I. Kreslo and F. Laudisio and A. Lauria and A. Ljubicic and A. Longhin and Loverre, {P. F.} and A. Malgin and M. Malenica and G. Mandrioli and T. Matsuo and T. Matsushita and V. Matveev and N. Mauri and E. Medinaceli and A. Meregaglia and S. Mikado and M. Miyanishi and F. Mizutani 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 A. Olchevsky and T. Omura and K. Ozaki and A. Paoloni and L. Paparella 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 T. Roganova and H. Rokujo and G. Rosa and O. Ryazhskaya and O. Sato and A. Schembri and W. Schmidt-Parzefall and I. Shakirianova 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 A. Sotnikov 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. Vladymyrov and L. Votano and Vuilleumier, {J. L.} and G. Wilquet and B. Wonsak and Yoon, {C. S.} and S. Zemskova",

note = "Publisher Copyright: {\textcopyright} 2015 American Physical Society. {\textcopyright} 2015 American Physical Society.",

year = "2015",

month = sep,

day = "17",

doi = "10.1103/PhysRevLett.115.121802",

language = "English",

volume = "115",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

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TY - JOUR

T1 - Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with 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 - Bodnarchuk, I.

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 - Fornari, F.

AU - Fukuda, T.

AU - Galati, G.

AU - Garfagnini, A.

AU - Goldberg, J.

AU - Gornushkin, Y.

AU - Grella, G.

AU - Guler, A. M.

AU - Gustavino, C.

AU - Hagner, C.

AU - Hara, T.

AU - Hayakawa, H.

AU - Hollnagel, A.

AU - Hosseini, B.

AU - Ishiguro, K.

AU - Jakovcic, K.

AU - Jollet, C.

AU - Kamiscioglu, C.

AU - Kamiscioglu, M.

AU - Kim, J. H.

AU - Kim, S. H.

AU - Kitagawa, N.

AU - Klicek, B.

AU - Kodama, K.

AU - Komatsu, M.

AU - Kose, U.

AU - Kreslo, I.

AU - Laudisio, F.

AU - Lauria, A.

AU - Ljubicic, A.

AU - Longhin, A.

AU - Loverre, P. F.

AU - Malgin, A.

AU - Malenica, M.

AU - Mandrioli, G.

AU - Matsuo, T.

AU - Matsushita, T.

AU - Matveev, V.

AU - Mauri, N.

AU - Medinaceli, E.

AU - Meregaglia, A.

AU - Mikado, S.

AU - Miyanishi, M.

AU - Mizutani, F.

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 - Olchevsky, A.

AU - Omura, T.

AU - Ozaki, K.

AU - Paoloni, A.

AU - Paparella, L.

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 - Roganova, T.

AU - Rokujo, H.

AU - Rosa, G.

AU - Ryazhskaya, O.

AU - Sato, O.

AU - Schembri, A.

AU - Schmidt-Parzefall, W.

AU - Shakirianova, 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 - Sotnikov, A.

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 - Vladymyrov, M.

AU - Votano, L.

AU - Vuilleumier, J. L.

AU - Wilquet, G.

AU - Wonsak, B.

AU - Yoon, C. S.

AU - Zemskova, S.

PY - 2015/9/17

Y1 - 2015/9/17

N2 - The OPERA experiment was designed to search for νμ→ντ oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ντ interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the νμ→ντ appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ντ candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of νμ→ντ oscillations in appearance mode with a significance larger than 5σ.

AB - The OPERA experiment was designed to search for νμ→ντ oscillations in appearance mode, i.e., by detecting the τ leptons produced in charged current ντ interactions. The experiment took data from 2008 to 2012 in the CERN Neutrinos to Gran Sasso beam. The observation of the νμ→ντ appearance, achieved with four candidate events in a subsample of the data, was previously reported. In this Letter, a fifth ντ candidate event, found in an enlarged data sample, is described. Together with a further reduction of the expected background, the candidate events detected so far allow us to assess the discovery of νμ→ντ oscillations in appearance mode with a significance larger than 5σ.

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UR - http://www.scopus.com/inward/citedby.url?scp=84942154734&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.115.121802

DO - 10.1103/PhysRevLett.115.121802

M3 - Article

AN - SCOPUS:84942154734

SN - 0031-9007

VL - 115

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 121802

ER -

Discovery of τ Neutrino Appearance in the CNGS Neutrino Beam with the OPERA Experiment

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