Measurement of the absolute branching fraction for [ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +]

Journal Article · Mon Nov 08 04:00:00 EST 1993 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.71.3070· OSTI ID:5726701

Akerib, D S; Barish, B; Chadha, M; Chan, S; Cowen, D F; Eigen, G; Miller, J S; O'Grady, C; Urheim, J; Weinstein, A J; Acosta, D; Athanas, M; Masek, G; Paar, H; Bean, A; Gronberg, J; Kutschke, R; Menary, S; Morrison, R J; Nakanishi, S ; Nelson, H N; Nelson, T K; Richman, J D; Ryd, A; Tajima, H; Schmidt, D; Sperka, D; Witherell, M S; Procario, M; Yang, S; Balest, R; Cho, K; Daoudi, M; Ford, W T; Johnson, D R; Lingel, K; Lohner, M; Rankin, P; Smith, J G; Alexander, J P; Bebek, C; Berkelman, K; Besson, D; Browder, T E; Cassel, D G; Cho, H A; Coffman, D M; Drell, P S; Ehrlich, R; Garcia-Sciveres, M; Geiser, B; Gittelman, B; Gray, S W; Hartill, D L; Heltsley, B K; Jones, C D; Jones, S L; Kandaswamy, J; Katayama, N; Kim, P C; Kreinick, D L; Ludwig, G S; Masui, J; Mevissen, J; Mistry, N B; Ng, C R; Nordberg, E; Ogg, M; Patterson, J R; Peterson, D; Riley, D; Salman, S; Sapper, M; Worden, H; Wuerthwein, F; Avery, P; Freyb,

Using 1.79 fb[sup [minus]1] of data recorded by the CLEO II detector we have measured the absolute branching fraction for [ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +]. The angular correlation between the [pi][sup +] emitted in the decay [ital D][sup *+][r arrow][ital D][sup 0][pi][sup +], and the jet direction in [ital e][sup +][ital e[minus]][r arrow][ital c[bar c]] events, is used to determine the total number of inclusive [ital D][sup 0] mesons produced from this source. The subsequent reconstruction of the decay chain [ital D][sup *+][r arrow][ital D][sup 0][pi][sup +],[ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +] allows a measurement of the absolute [ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +] branching fraction. Correcting for decay radiation in the final state, we find [ital scrB]([ital D][sup 0][r arrow][ital K][sup [minus]][pi][sup +])=[3.95[plus minus]0.08(stat)[plus minus]0.17(syst)]%.

• OSTI ID: 5726701
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 71:19; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

662350* -- Decays of Mesons-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR CORRELATION
BOSONS
BRANCHING RATIO
CHARM PARTICLES
CHARMED MESONS
CORRELATIONS
D MESONS
D NEUTRAL MESONS
DECAY
ELEMENTARY PARTICLES
HADRONS
KAONS
KAONS MINUS
MESONS
PARTICLE DECAY
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
STRANGE MESONS
STRANGE PARTICLES
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY