New results from a search for vμ → vτ and ve → vτ oscillation

E. Eskut, A. Kayis-Topaksu, G. Onengüt, R. van Dantzig, M. de Jong, J. Konijn, O. Melzer, R. G.C. Oldeman, E. Pesen, C. A.F.J. van der Poel, J. W.E. Uiterwijk, J. L. Visschers, M. Guler, M. Serin-Zeyrek, R. Sever, P. Tolun, M. T. Zeyrek, N. Armenise, F. Cassol, M. G. CatanesiM. de Serio, M. T. Muciaccia, E. Radicioni, P. Righini, S. Simone, L. Vivolo, A. Bülte, K. Winter, P. Annis, R. El-Aidi, M. Vander Donckt, B. van de Vyver, P. Vilain, G. Wilquet, B. Saitta, E. di Capua, Y. Ishii, M. Kazuno, S. Ogawa, H. Shibuya, J. Brunner, M. Chizhov, D. Cussans, M. Doucet, J. P. Fabre, W. Flegel, M. Litmaath, H. Meinhard, E. Niu, H. Øveras, J. Panman, I. M. Papadopoulos, S. Ricciardi, A. Rozanov, D. Saltzberg, P. Strolin, R. Tsenov, C. Weinheimer, H. Wong, P. Zucchelli, J. Goldberg, M. Chikawa, E. Arik, A. A. Mailov, J. S. Song, C. S. Yoon, K. Kodama, N. Ushida, S. Aoki, T. Hara, G. Brooijmans, D. Favart, G. Grégoire, J. Hérin, A. Artamonov, P. Gorbunov, V. Khovansky, V. Shamanov, I. Tsukerman, D. Bonekämper, N. D'Ambrosio, D. Frekers, D. Rondeshagen, T. Wolff, K. Hoshino, M. Komatsu, Y. Kotaka, T. Kozaki, M. Miyanishi, M. Nakamura, T. Nakano, K. Niu, K. Niwa, Y. Obayashi, O. Sato, T. Toshito, N. Bruski, S. Buontempo, A. G. Cocco, G. de Lellis, F. di Capua, A. Ereditato, G. Fiorillo, T. Kawamura, R. Listone, M. Messina, P. Migliozzi, V. Palladino, V. Tioukov, K. Nakamura, T. Okusawa, A. Capone, D. de Pedis, S. di Liberto, U. Dore, P. F. Loverre, L. Ludovici, A. Maslennikov, G. Piredda, G. Rosa, R. Santacesaria, A. Satta, F. R. Spada, E. Barbuto, C. Bozza, G. Grella, G. Romano, S. Sorrentino, Y. Sato, I. Tezuka

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57 Scopus citations

Abstract

A first analysis of the complete set of data collected by CHORUS in the years 1994-1997 is presented. The search for vτ charged current events has been performed for both leptonic and hadronic decays of the τ lepton. No τ candidate has been found. A vμ → vτ mixing is excluded down to sin2μτ = 6.8 × 10-4 for large Δm2 (90% C.L.).

Original languageEnglish
Pages (from-to)8-22
Number of pages15
JournalPhysics Letters B
Volume497
Issue number1-2
DOIs
StatePublished - Jan 4 2001
Externally publishedYes

Funding

The experiment has been made possible by grants from: the Institut Interuniversitaire des Sciences Nucléaires and the Interuniversitair Instituut voor Kernwetenschappen (Belgium), the Israel Science foundation (grant 328/94) and the Technion Vice President Fund for the Promotion of Research (Israel), CERN (Geneva, Switzerland), the German Bundesministerium für Bildung und Forschung (Germany), the Institute of Theoretical and Experimental Physics (Moscow, Russia), the Istituto Nazionale di Fisica Nucleare (Italy), the Promotion and Mutual Aid Corporation for Private Schools of Japan and Japan Society for the Promotion of Science (Japan), the Korea Research Foundation Grant (KRF-99-005-D00004) (Republic of Korea), the Foundation for Fundamental Research on Matter FOM and the National Scientific Research Organization NWO (The Netherlands) and the Scientific and Technical Research Council of Turkey (Turkey). We gratefully acknowledge their support.

FundersFunder number
German Bundesministerium für Bildung und Forschung
Institut Interuniversitaire des Sciences Nucléaires
Institute of Theoretical and Experimental Physics
Interuniversitair Instituut voor Kernwetenschappen
National Scientific Research Organization NWO
Technion Vice President Fund for the Promotion of Research
CERN
Japan Society for the Promotion of Science
Foundation for Fundamental Research on Matter
National Research Foundation of KoreaKRF-99-005-D00004
Israel Science Foundation328/94
Instituto Nazionale di Fisica Nucleare
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu
Promotion and Mutual Aid Corporation for Private Schools of Japan

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