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

Journal Article · Thu Mar 01 00:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.1384· OSTI ID:6850600

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,

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.

• DOE Contract Number: AC02-84ER40125; AC03-76SF00515; AC03-76SF00098
• OSTI ID: 6850600
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 41:5; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
SEMILEPTONIC DECAY
B PLUS MESONS
D MINUS MESONS
D PLUS MESONS
ANNIHILATION
BRANCHING RATIO
ELECTRON-POSITRON INTERACTIONS
FEYNMAN DIAGRAM
GEV RANGE 10-100
KAONS MINUS
KAONS PLUS
MASS
PARTICLE PRODUCTION
PEP STORAGE RINGS
PIONS MINUS
PIONS PLUS
STANDARD MODEL
B MESONS
BASIC INTERACTIONS
BOSONS
CHARM PARTICLES
CHARMED MESONS
D MESONS
DECAY
DIAGRAMS
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
GEV RANGE
HADRONS
INTERACTIONS
KAONS
LEPTON-LEPTON INTERACTIONS
MATHEMATICAL MODELS
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PIONS
PSEUDOSCALAR MESONS
STORAGE RINGS
STRANGE MESONS
STRANGE PARTICLES
UNIFIED GAUGE MODELS
WEAK PARTICLE DECAY
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties
645103 - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Interactions & Baryon & Meson Properties