A search for νμ → ντ oscillation

E. Eskut, A. Kayis, G. Onengüt, R. van Dantzig, M. de Jong, J. Konijn, O. Melzer, R. G.C. Oldeman, C. A.F.J. van der Poel, J. W.E. Uiterwijk, J. L. Visschers, A. S. Ayan, E. Pesen, M. Serin-Zeyrek, R. Sever, P. Tolun, M. T. Zeyrek, N. Armenise, F. Cassol, M. G. CatanesiM. T. Muciaccia, E. Radicioni, S. Simone, L. Vivolo, A. Bülte, P. Lendermann, A. Meyer-Sievers, T. Patzak, K. Winter, P. Annis, M. Gruwé, C. Mommaert, M. Vander Donckt, B. van de Vyver, P. Vilain, G. Wilquet, P. Righini, B. Saitta, E. di Capua, C. Luppi, P. Zucchelli, Y. Ishii, T. Kawamura, M. Kazuno, S. Ogawa, H. Shibuya, R. Beyer, J. Brunner, D. Cussans, J. P. Fabre, R. Ferreira, W. Flegel, R. Gurin, M. Litmaath, L. Ludovici, D. Macina, R. Meijer Drees, H. Meinhard, P. Migliozzi, E. Niu, H. Øveras, J. Panman, I. M. Papadopoulos, F. Riccardi, S. Ricciardi, A. Rozanov, D. Saltzberg, R. Santacesaria, G. Stefanini, R. Tsenov, C. Weinheimer, H. Wong, J. Goldberg, K. Hoepfner, M. Chikawa, E. Arik, I. Birol, A. A. Mailov, C. H. Hahn, H. I. Jang, I. G. Park, M. S. Park, J. S. Song, C. S. Yoon, K. Kodama, N. Ushida, S. Aoki, T. Hara, G. Brooijmans, D. Favart, G. Grégoire, J. Hérin, V. Lemaitre, A. Artamonov, P. Gorbunov, V. Khovansky, V. Shamanov, V. Smirnitsky, D. Bonekämper, D. Frekers, D. Rondeshagen, T. Wolff, K. Hoshino, M. Kobayashi, Y. Kotaka, T. Kozaki, M. Miyanishi, M. Nakamura, K. Nakazawa, T. Nakano, K. Niu, K. Niwa, Y. Obayashi, O. Sato, T. Toshito, S. Buontempo, A. Cocco, N. D'Ambrosio, G. de Lellis, A. Ereditato, G. Fiorillo, F. Garufi, F. Marchetti-Stasi, M. Messina, V. Palladino, S. Sorrentino, P. Strolin, K. Nakamura, T. Okusawa, T. Yoshida, A. Capone, D. de Pedis, S. di Liberto, U. Dore, P. F. Loverre, A. Maslennikov, M. A. Mazzoni, F. Meddi, G. Piredda, A. di Bartolomeo, C. Bozza, G. Grella, G. Iovane, G. Romano, G. Rosa, Y. Sato, I. Tezuka

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Abstract

CHORUS is an experiment searching for νμ → ντ oscillation in the CERN wide band neutrino beam with a hybrid setup consisting of a nuclear emulsion target followed by electronic detectors. The experiment has been taking data from 1994 through 1997. A subset of the neutrino interactions collected in 1994 and 1995 have been analyzed, looking for ντ charged current interactions where the τ lepton decays to μν̄μντ. In a sample of 31,423 νμ charged current interactions, no ντ candidates were found. For large Δm2μτ values, a limit on the mixing angle of sin2μτ < 3.5 × 10-3 at 90% C.L. can be set, thus improving the previous best result.

Original languageEnglish
Pages (from-to)202-212
Number of pages11
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume424
Issue number1-2
DOIs
Publication statusPublished - 1998 Apr 2
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Eskut, E., Kayis, A., Onengüt, G., van Dantzig, R., de Jong, M., Konijn, J., Melzer, O., Oldeman, R. G. C., van der Poel, C. A. F. J., Uiterwijk, J. W. E., Visschers, J. L., Ayan, A. S., Pesen, E., Serin-Zeyrek, M., Sever, R., Tolun, P., Zeyrek, M. T., Armenise, N., Cassol, F., ... Tezuka, I. (1998). A search for νμ → ντ oscillation. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 424(1-2), 202-212. https://doi.org/10.1016/S0370-2693(98)00081-1