arXiv : Limits on muon-neutrino to tau-neutrino oscillations induced by a sterile neutrino state obtained by OPERA at the CNGS beam

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

doi:10.1007/JHEP06(2015)069

Article
Report number	arXiv:1503.01876
Title	Limits on muon-neutrino to tau-neutrino oscillations induced by a sterile neutrino state obtained by OPERA at the CNGS beam
Related title	Limits on muon-neutrino to tau-neutrino oscillations induced by a sterile neutrino state obtained by OPERA at the CNGS beam
Author(s)	Agafonova, N. (Moscow, INR) ; Aleksandrov, A. (INFN, Naples) ; Anokhina, A. (Moscow State U.) ; Aoki, S. (Kobe U.) ; Ariga, A. (Bern U.) ; Ariga, T. (Bern U.) ; Bender, D. (Middle East Tech. U., Ankara) ; Bertolin, A. (INFN, Padua) ; Bodnarchuk, I. (Dubna, JINR) ; Bozza, C. (Salerno U. ; INFN, Salerno) ; Brugnera, R. (INFN, Padua) ; Buonaura, A. (INFN, Naples ; Naples U.) ; Buontempo, S. (INFN, Naples) ; Buttner, B. (Hamburg U., Inst. Theor. Phys. II) ; Chernyavsky, M. (Lebedev Inst.) ; Chukanov, A. (Dubna, JINR) ; Consiglio, L. (INFN, Naples) ; D'Ambrosio, N. (Gran Sasso) ; De Lellis, G. (INFN, Naples ; Naples U.) ; De Serio, M. (Bari U.) ; del Amo Sanchez, P. (Annecy, LAPP) ; Di Crescenzo, A. (INFN, Naples) ; Di Ferdinando, D. (INFN, Bologna) ; Di Marco, N. (Gran Sasso) ; Dmitrievski, S. (Dubna, JINR) ; Dracos, M. (Louis Pasteur U., Strasbourg I) ; Duchesneau, D. (Annecy, LAPP) ; Dusini, S. (INFN, Padua) ; Dzhatdoev, T. (Moscow State U.) ; Ebert, J. (Hamburg U., Inst. Theor. Phys. II) ; Ereditato, A. (Bern U.) ; Fini, R.A. (INFN, Bari) ; Fukuda, T. (Toho U.) ; Galati, G. (INFN, Naples ; Naples U.) ; Garfagnini, A. (Salerno U. ; INFN, Salerno) ; Goldberg, J. (Technion) ; Gornushkin, Y. (Dubna, JINR) ; Grella, G. (Salerno U. ; INFN, Salerno) ; Guler, A.M. (Middle East Tech. U., Ankara) ; Gustavino, C. (INFN, Rome) ; Hagner, C. (Hamburg U., Inst. Theor. Phys. II) ; Hara, T. (Kobe U.) ; Hollnagel, A. (Hamburg U., Inst. Theor. Phys. II) ; Hosseini, B. (INFN, Naples ; Naples U.) ; Ishiguro, K. (Nagoya U.) ; Jakovcic, K. (Boskovic Inst., Zagreb) ; Jollet, C. (Louis Pasteur U., Strasbourg I) ; Kamiscioglu, C. (Middle East Tech. U., Ankara) ; Kamiscioglu, M. (Middle East Tech. U., Ankara) ; Kim, J.H. (Gyeongsang Natl. U.) ; Kim, S.H. (Gyeongsang Natl. U.) ; Kitagawa, N. (Nagoya U.) ; Klicek, B. (Boskovic Inst., Zagreb) ; Kodama, K. (Aichi U.) ; Komatsu, M. (Nagoya U.) ; Kose, U. (INFN, Padua) ; Kreslo, I. (Bern U.) ; Lauria, A. (INFN, Naples ; Naples U.) ; Ljubicic, A. (Boskovic Inst., Zagreb) ; Longhin, A. (INFN, Rome) ; Malgin, A. (Moscow, INR) ; Malenica, M. (Boskovic Inst., Zagreb) ; Mandrioli, G. (INFN, Bologna) ; Matsuo, T. (Toho U.) ; Matveev, V. (Moscow, INR) ; Mauri, N. (INFN, Bologna) ; Medinaceli, E. (INFN, Padua ; Padua U.) ; Meregaglia, A. (Louis Pasteur U., Strasbourg I) ; Mikado, S. (Nihon U., Narashino) ; Monacelli, P. (INFN, Rome) ; Montesi, M.C. (INFN, Naples ; Naples U.) ; Morishima, K. (Nagoya U.) ; Muciaccia, M.T. (Bari U.) ; Naganawa, N. (Nagoya U.) ; Naka, T. (Nagoya U.) ; Nakamura, M. (Nagoya U.) ; Nakano, T. (Nagoya U.) ; Nakatsuka, Y. (Nagoya U.) ; Niwa, K. (Nagoya U.) ; Ogawa, S. (Toho U.) ; Omura, T. (Nagoya U.) ; Ozaki, K. (Kobe U.) ; Paoloni, A. (INFN, Rome) ; Paparella, L. (Bari U.) ; Park, B.D. (Gyeongsang Natl. U.) ; Park, I.G. (Gyeongsang Natl. U.) ; Pasqualini, L. (INFN, Bologna) ; Pastore, A. (INFN, Bari) ; Patrizii, L. (INFN, Bologna) ; Pessard, H. (Annecy, LAPP) ; Podgrudkov, D. (Moscow State U.) ; Polukhina, N. (Lebedev Inst.) ; Pozzato, M. (INFN, Bologna) ; Pupilli, F. (Gran Sasso) ; Roda, M. (INFN, Padua ; Padua U.) ; Roganova, T. (Moscow State U.) ; Rokujo, H. (Nagoya U.) ; Rosa, G. (INFN, Rome) ; Ryazhskaya, O. (Moscow, INR) ; Sato, O. (Nagoya U.) ; Schembri, A. (Gran Sasso) ; Shakirianova, I. (Moscow, INR) ; Shchedrina, T. (INFN, Naples) ; Sheshukov, A. (Dubna, JINR) ; Shibuya, H. (Toho U.) ; Shiraishi, T. (Nagoya U.) ; Shoziyoev, G. (Moscow State U.) ; Simone, S. (Bari U.) ; Sioli, M. (INFN, Bologna) ; Sirignano, C. (INFN, Padua ; Padua U.) ; Sirri, G. (INFN, Bologna) ; Spinetti, M. (INFN, Rome) ; Stanco, L. (INFN, Padua) ; Starkov, N. (Lebedev Inst.) ; Stellacci, S.M. (Salerno U. ; INFN, Salerno) ; Stipcevic, M. (Boskovic Inst., Zagreb) ; Strolin, P. (INFN, Naples ; Naples U.) ; Takahashi, S. (Kobe U.) ; Tenti, M. (INFN, Bologna) ; Terranova, F. (INFN, Rome) ; Tioukov, V. (INFN, Naples) ; Tufanli, S. (Bern U.) ; Vilain, P. (Brussels U.) ; Vladymyrov, M. (Lebedev Inst.) ; Votano, L. (INFN, Rome) ; Vuilleumier, J.L. (Bern U.) ; Wilquet, G. (Brussels U.) ; Wonsak, B. (Hamburg U., Inst. Theor. Phys. II) ; Yoon, C.S. (Gyeongsang Natl. U.) ; Zemskova, S. (Dubna, JINR) OPERA Collaboration ყველა 130 ავტორის ჩვენება
Publication	2015-06-11
Imprint	06 Mar 2015
Number of pages	11
Note	Comments: 11 pages, 4 figures. Prepared for submission to JHEP 11 pages, 4 figures; reference to Planck result updated in the Introduction. Submitted to JHEP
In:	JHEP 06 (2015) pp.069
DOI	10.1007/JHEP06(2015)069 10.1007/JHEP06(2015)069
Subject category	hep-ex ; Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN SPS ; OPERA CNGS1
Abstract	The OPERA experiment, exposed to the CERN to Gran Sasso $\nu_\mu$ beam, collected data from 2008 to 2012. Four oscillated $\nu_\tau$ Charged Current interaction candidates have been detected in appearance mode, which are consistent with $\nu_\mu \to \nu_\tau$ oscillations at the atmospheric $\Delta m^2$ within the "standard" three-neutrino framework. In this paper, the OPERA $\nu_\tau$ appearance results are used to derive limits on the mixing parameters of a massive sterile neutrino.
Copyright/License	arXiv nonexclusive-distrib. 1.0

$(a) $90\%$ CL exclusion limits in the $\phi_{\mu \tau}$ vs $\sin^2 2\theta_{\mu \tau}$ parameter space for normal (NH, dashed red) and inverted (IH, solid blue) hierarchies assuming $\Delta m^2_{41}>$ 1 $\mathrm{eV^2}$. Bands are drawn to indicate the excluded regions. (b) Log likelihood ratio as a function of $\sin^2 2\theta_{\mu \tau}$ for $\phi_{\mu \tau}=0$ (dashed line) and for the profile likelihood (continuous line).$ $$90\%$ CL exclusion limits (blue line) in the $|U_{\tau 4}|^2$ vs $|U_{\mu 4}|^2$ plane assuming $\Delta m^2_{41}>$ 1 $\mathrm {eV^2}$. The unitarity bound (grey line) is also shown. Bands are drawn to indicate the excluded regions.$ Show more plots

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