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

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

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 +]...

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Veröffentlicht in:	Physical review letters 1993-11, Vol.71:19
Hauptverfasser:	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
Format:	Artikel
Sprache:	eng
Schlagworte:	662420 > Properties of Mesons & Meson Resonances-- (1992-) 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 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS PIONS PLUS PSEUDOSCALAR MESONS STRANGE MESONS STRANGE PARTICLES WEAK HADRONIC DECAY WEAK PARTICLE DECAY 662350 > Decays of Mesons-- (1992-)
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Zusammenfassung:	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)]%.
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.71.3070