The fine granularity of the CHARM-II detector has been exploited to search, in the CERN-SPS wide band neutrino beam, for quasi-elastic nu(tau) interactions followed by the decay tau --> pinu(tau). Since the sampling thickness of the target calorimeter corresponds to approximately 1/9 of an interaction length, these events appear in the detector as a single track followed by a hadronic shower. The study of the ''single pion'' events is used to set limits on the nu(mu) --> nu(tau) oscillation parameters. The maximum sensitivity to the mixing angle theta is reached for DELTAm2 = 50 eV2 allowing to exclude values of sin2 20 greater than 6.4 x 10(-3) at 90% CL.

Search For Nu(mu)-]nu(tau) Oscillation / M., Gruwe; C., Mommaert; P., Vilain; G., Wilquet; R., Beyer; W., Flegel; H., Grote; T., Mouthuy; H., Overas; J., Panman; A., Rozanov; K., Winter; G., Zacek; V., Zacek; F. W., Busser; C., Foos; L., Gerland; T., Layda; F., Niebergall; G., Radel; P., Stahelin; T., Voss; D., Favart; G., Gregoire; E., Knoops; V., Lemaitre; P., Gorbunov; E., Grigoriev; V., Khovansky; A., Maslennikov; W., Lippich; A., Nathaniel; A., Staude; J., Vogt; S., Buontempo; A. G., Cocco; A., Ereditato; Fiorillo, Giuliana; F., Marchettistasi; Palladino, Vittorio; P., Strolin; A., Capone; D., Depedis; U., Dore; A., Frenkelrambaldi; P. F., Loverre; D., Macina; G., Piredda; R., Santacesaria; E., Dicapua; S., Ricciardi; B., Saitta; K., Hiller; R., Nahnhauer; H. E., Roloff. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 309:(1993), pp. 463-468. [10.1016/0370-2693(93)90962-H]

Search For Nu(mu)-]nu(tau) Oscillation

FIORILLO, GIULIANA;PALLADINO, VITTORIO;
1993

Abstract

The fine granularity of the CHARM-II detector has been exploited to search, in the CERN-SPS wide band neutrino beam, for quasi-elastic nu(tau) interactions followed by the decay tau --> pinu(tau). Since the sampling thickness of the target calorimeter corresponds to approximately 1/9 of an interaction length, these events appear in the detector as a single track followed by a hadronic shower. The study of the ''single pion'' events is used to set limits on the nu(mu) --> nu(tau) oscillation parameters. The maximum sensitivity to the mixing angle theta is reached for DELTAm2 = 50 eV2 allowing to exclude values of sin2 20 greater than 6.4 x 10(-3) at 90% CL.
1993
Search For Nu(mu)-]nu(tau) Oscillation / M., Gruwe; C., Mommaert; P., Vilain; G., Wilquet; R., Beyer; W., Flegel; H., Grote; T., Mouthuy; H., Overas; J., Panman; A., Rozanov; K., Winter; G., Zacek; V., Zacek; F. W., Busser; C., Foos; L., Gerland; T., Layda; F., Niebergall; G., Radel; P., Stahelin; T., Voss; D., Favart; G., Gregoire; E., Knoops; V., Lemaitre; P., Gorbunov; E., Grigoriev; V., Khovansky; A., Maslennikov; W., Lippich; A., Nathaniel; A., Staude; J., Vogt; S., Buontempo; A. G., Cocco; A., Ereditato; Fiorillo, Giuliana; F., Marchettistasi; Palladino, Vittorio; P., Strolin; A., Capone; D., Depedis; U., Dore; A., Frenkelrambaldi; P. F., Loverre; D., Macina; G., Piredda; R., Santacesaria; E., Dicapua; S., Ricciardi; B., Saitta; K., Hiller; R., Nahnhauer; H. E., Roloff. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 309:(1993), pp. 463-468. [10.1016/0370-2693(93)90962-H]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/412409
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