Determination of B ( D sub s sup + r arrow. phi. pi. sup + ) via observation of D sub s sup + r arrow. phi. l sup +. nu

Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio {Gamma}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital l}{sup +}{nu})/{Gamma}({ital D}{sub {ital s}}{sup +} {r arrow}{phi}{pi}{sup +})=0.49{plus minus}0.10{sub {minus}0.14}{sup +0.10}. We use this mea...

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Veröffentlicht in:	Physical review letters 1990-09, Vol.65:13
Hauptverfasser:	Alexander, J., Artuso, M., Bebek, C., Berkelman, K., Browder, T., Cassel, D.G., Cheu, E., Coffman, D.M., Crawford, G., DeWire, J.W., Drell, P.S., Ehrlich, R., Galik, R.S., Gittelman, B., Gray, S.W., Halling, A.M., Hartill, D.L., Heltsley, B.K., Kandaswamy, J., Katayama, N., Kreinick, D.L., Lewis, J.D., Ludwig, G.S., Mistry, N.B., Mueller, J., Nandi, S., Nordberg, E., O'Grady, C., Peterson, D., Pisharody, M., Riley, D., Sapper, M., Selen, M., Silverman, A., Stone, S., Worden, H., Worris, M., Sadoff, A.J., Avery, P., Besson, D., Garren, L., Yelton, J., Bowcock, T., Kinoshita, K., Pipkin, F.M., Procario, M., Wilson, R., Wolinski, J., Xiao, D., Zhu, Y., Ammar, R., Baringer, P., Coppage, D., Haas, P., Kelly, M., Kwak, N., Lam, H., Ro, S., Kubota, Y., Nelson, J.K., Perticone, D., Poling, R., Fulton, R., Jensen, T., Johnson, D.R., Kagan, H., Kass, R., Morrow, F., Whitmore, J., Wilson, P., Bortoletto, D., Chen, W., Dominick, J., McIlwain, R.L., Miller, D.H., Ng, C.R., Schaffner, S.F., Shibata
Format:	Artikel
Sprache:	eng
Schlagworte:	645103 - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties B MESONS BOSONS BRANCHING RATIO CESR STORAGE RING CHARM PARTICLES CHARMED MESONS D S MESONS DECAY ELEMENTARY PARTICLES HADRON-HADRON INTERACTIONS HADRONS INTERACTIONS MESON-MESON INTERACTIONS MESONS PARTICLE DECAY PARTICLE INTERACTIONS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PSEUDOSCALAR MESONS STORAGE RINGS WEAK PARTICLE DECAY
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Zusammenfassung:	Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio {Gamma}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{ital l}{sup +}{nu})/{Gamma}({ital D}{sub {ital s}}{sup +} {r arrow}{phi}{pi}{sup +})=0.49{plus minus}0.10{sub {minus}0.14}{sup +0.10}. We use this measurement to derive {ital B}({ital D}{sub {ital s}}{sup +}{r arrow}{phi}{pi}{sup +}).
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.65.1531