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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., A., S., A., A., A., E., B., A. d., B., D., B., C., B., C., B., J., B., A., B., S., B., A., C., F., C., M. G., C., M., C., A., C., D., C., N., D., R. v., D., G. D., L., et al.. - 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.
1998
Observation of neutrino induced diffractive D-s*(+) production and subsequent decay D-s*(+)-> D-s(+)->tau(+)->mu(+) / P., A., S., A., A., A., E., B., A. d., B., D., B., C., B., C., B., J., B., A., B., S., B., A., C., F., C., M. G., C., M., C., A., C., D., C., N., D., R. v., D., G. D., L., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 435:(1998), pp. 458-464. [10.1016/S0370-2693(98)00914-9]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/412375
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