Upper limits on D sup + and B sup + decays to two leptons plus. pi. sup + or K sup

Data taken by the Mark II detector at the SLAC {ital e}{sup +}{ital e}{sup {minus}} storage ring PEP was used to search for exclusive decays of {ital D}{sup {plus minus}} and {ital B}{sup {plus minus}} mesons into two charged leptons plus a charged pion or kaon. All possible charge and lepton combin...

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Veröffentlicht in:	Physical review. D, Particles and fields Particles and fields, 1990-03, Vol.41:5
Hauptverfasser:	Weir, A.J., Klein, S.R., Abrams, G., Adolphsen, C.E., Akerlof, C., Alexander, J.P., Alvarez, M., Amidei, D., Baden, A.R., Ballam, J., Barish, B.C., Barklow, T., Barnett, B.A., Bartelt, J., Blockus, D., Bonvicini, G., Boyarski, A., Boyer, J., Brabson, B., Breakstone, A., Brom, J.M., Bulos, F., Burchat, P.R., Burke, D.L., Butler, F., Calvino, F., Cence, R.J., Chapman, J., Cords, D., Coupal, D.P., DeStaebler, H.C., Dorfan, D.E., Dorfan, J.M., Drell, P.S., Feldman, G.J., Fernandez, E., Field, R.C., Ford, W.T., Fordham, C., Frey, R., Fujino, D., Gan, K.K., Gidal, G., Gladney, L., Glanzman, T., Gold, M.S., Goldhaber, G., Green, A., Grosse-Wiesmann, P., Haggerty, J., Hanson, G., Harr, R., Harris, F.A., Hawkes, C.M., Hayes, K., Herrup, D., Heusch, C.A., Himel, T., Hollebeek, R.J., Hutchinson, D., Hylen, J., Innes, W.R., Jaffre, M., Jaros, J.A., Juricic, I., Kadyk, J.A., Karlen, D., Kent, J., Koska, W., Kozanecki, W., Lankford, A.J., Larsen, R.R., LeClaire, B.W., Levi, M.E., Litke, A.M., Lockye
Format:	Artikel
Sprache:	eng
Schlagworte:	645103 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties ANNIHILATION B MESONS B MINUS MESONS B PLUS MESONS BASIC INTERACTIONS BOSONS BRANCHING RATIO CHARM PARTICLES CHARMED MESONS D MESONS D MINUS MESONS D PLUS MESONS DECAY DIAGRAMS ELECTROMAGNETIC INTERACTIONS ELECTRON-POSITRON INTERACTIONS ELEMENTARY PARTICLES ENERGY RANGE FEYNMAN DIAGRAM GEV RANGE GEV RANGE 10-100 HADRONS INTERACTIONS KAONS KAONS MINUS KAONS PLUS LEPTON-LEPTON INTERACTIONS MASS MATHEMATICAL MODELS MESONS PARTICLE DECAY PARTICLE INTERACTIONS PARTICLE MODELS PARTICLE PRODUCTION PEP STORAGE RINGS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS PIONS PIONS MINUS PIONS PLUS PSEUDOSCALAR MESONS SEMILEPTONIC DECAY STANDARD MODEL STORAGE RINGS STRANGE MESONS STRANGE PARTICLES UNIFIED GAUGE MODELS WEAK PARTICLE DECAY 645102 > High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
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Beschreibung
Zusammenfassung:	Data taken by the Mark II detector at the SLAC {ital e}{sup +}{ital e}{sup {minus}} storage ring PEP was used to search for exclusive decays of {ital D}{sup {plus minus}} and {ital B}{sup {plus minus}} mesons into two charged leptons plus a charged pion or kaon. All possible charge and lepton combinations consistent with charge conservation were considered and no evidence for any signals was found. We obtain upper limits for the various branching ratios ranging from 2.5{times}10{sup {minus}3} to 9.2{times}10{sup {minus}3}, at a 90% confidence level. Some of these limits can be used to constrain leptoquark masses in various models.
ISSN:	0556-2821 1089-4918
DOI:	10.1103/PhysRevD.41.1384