Observation of charmed meson D/sup 0/D/sup 0/-pair photocreation events

Describes an event, discovered in experiments on the creation of charmed particles by tagged photons from the supersynchrotron at CERN. The event was simultaneously registered in nuclear photoemulsion as well as in the magnetic spectrometer 'Omega-prim'. This is interpreted as the first ca...

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Detalles Bibliográficos
Autores principales: Adamovich, M I, Aleksandrov, Y A, Atkinson, M, Bolta-Dzh, M, Bravo, L, Brodbek, T, Bruks, G R, Byusse, P D, Chernyavsky, M M, Dagliana, M G, Dameri, M, Davenport, M, Diambrini-Palazzi, G, Dyufe-Dzh, P, Ellison, R D, Forino, A, Galbrait, V, Gessaroli, R, Ibbotson, M, Kaporiako, D, Kartachi, A M, Kharlamov, S P, Kheinlot, K, Khigon, E, Khyutton, S, Khyuz-Dzhons, R E, Konforto, B, Konti, A, Krosetta, G, Kumar, B R, Kvareni-Vignudeli, A, Lafeti, D, Larionova, V G, Lassal, K, Lein, B, Llosa, R, Lori, Z, Makklatchi, R, Mattei, A, Merker, D, Morris, V, Orlova, G I, Oskulati, B, Peresad, N G, Perrini, G, Romanovskaya, K M, Ruiz, A, Sanchis, M A, Sannino, M, Shyun, D, Storr, K M, Tentindo, S, Tomasini, D, Tretyakova, M I, Tsai, Chu, Vanderkhage, G, Veit, A P, Viio, B, Villar, E
Lenguaje:rus
Publicado: 1981
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/878209
Descripción
Sumario:Describes an event, discovered in experiments on the creation of charmed particles by tagged photons from the supersynchrotron at CERN. The event was simultaneously registered in nuclear photoemulsion as well as in the magnetic spectrometer 'Omega-prim'. This is interpreted as the first case of photocreation of a pair of charmed neutral mesons D/sup 0/D/sup 0/. For D/sup 0/ to K/sup +/ pi /sup -/ pi /sup -/ pi /sup +/, a decay time of tau (D/sup 0/)=(0.14+or-0.01)*10/sup -13/ s was obtained, for D/sup 0/ to K/sup 0/ pi /sup -/e/sup +/ nu , two solutions were obtained, tau /sub 1/(D/sup 0/)=(3.4+or-0.3)*10/sup -13 / s and tau /sub 2/(D/sup 0/)=(7.5+or-0.3)*10/sup -13/ s. (5 refs).

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