We report on the first direct observation of a neutrino induced charged-current interaction with two subsequent decays of short-lived particles close to the interaction vertex. This rare double-kink signature in the CHORUS emulsion target is interpreted as a D-s*(+) production followed by the decay chain D-s*(+) --> D-s(+) gamma, D-s(+) --> tau(+) v(tau),tau(+) --> mu(+) v(mu)v(tau). The event is characterised by small Q(2) and small four-momentum transfer squared t to the target nucleon, which indicates a diffractive production mechanism. A complete analysis of the event is presented. (C) 1998 Elsevier Science B.V. All rights reserved.
Observation of neutrino induced diffractive D-s*(+) production and subsequent decay D-s*(+)-> D-s(+)->tau(+)->mu(+) / P., Annis; S., Aoki; A., Artamonov; E., Barbuto; A. d., Bartolomeo; D., Bonekamper; C., Bozza; C., Brooijmans; J., Brunner; A., Bulte; S., Buontempo; A., Capone; F., Cassol; M. G., Catanesi; M., Chikawa; A., Cocco; D., Cussans; N., D'Ambrosio; R. v., Dantzig; G. D., Lellis; D. D., Pedis; E. D., Capua; U., Dore; R. E., Aidi; A., Ereditato; D., Favart; R., Ferreira; Fiorillo, Giuliana; D., Frekers; J., Goldberg; P., Gorbunov; G., Gregoire; G., Grella; T., Hara; J., Herin; K., Hoshino; G., Iovane; Y., Ishii; M. d., Jong; T., Kawamura; A., Kayis; M., Kazuno; V., Khovansky; K., Kodama; M., Komatsu; J., Konijn; Y., Kotaka; T., Kozaki; M., Litmaath; P. F., Loverre; L., Ludovici; M., Meinhard; O., Melzer; M., Messina; P., Migliozzi; M., Miyanishi; M. T., Muciaccia; K., Nakamura; M., Nakamura; T., Nakano; E., Niu; K., Niu; K., Niwa; Y., Obayashi; S., Ogawa; T., Okusawa; R. G., C.; G., Onengut; H., Overas; Palladino, Vittorio; J., Panman; I. M., Papadopoulos; I. G., Park; E., Pesen; G., Piredda; C. A., F.; E., Radicioni; S., Ricciardi; P., Righini; G., Romano; D., Rondeshagen; G., Rosa; D., Saltzberg; B., Saitta; R., Santacesaria; O., Sato; Y., Sato; A., Satta; V., Shamanov; H., Shibuya; S., Simone; J. S., Song; S., Sorrentino; P., Strolin; I., Tezuka; V., Tioukov; P., Tolun; T., Toshito; R., Tsenov; J. W., E.; N., Ushida; M. V., Dockt; B. V., De; P., Vilain; J. L., Visschers; L., Vivolo; C., Weinheimer; G., Wilquet; K., Winter; T., Wolff; H., Wong; C. S., Yoon; M. T., Zeyrek; P., Zucchelli. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 435:(1998), pp. 458-464. [10.1016/S0370-2693(98)00914-9]
Observation of neutrino induced diffractive D-s*(+) production and subsequent decay D-s*(+)-> D-s(+)->tau(+)->mu(+)
FIORILLO, GIULIANA;PALLADINO, VITTORIO;
1998
Abstract
We report on the first direct observation of a neutrino induced charged-current interaction with two subsequent decays of short-lived particles close to the interaction vertex. This rare double-kink signature in the CHORUS emulsion target is interpreted as a D-s*(+) production followed by the decay chain D-s*(+) --> D-s(+) gamma, D-s(+) --> tau(+) v(tau),tau(+) --> mu(+) v(mu)v(tau). The event is characterised by small Q(2) and small four-momentum transfer squared t to the target nucleon, which indicates a diffractive production mechanism. A complete analysis of the event is presented. (C) 1998 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
