Limit on the b. -->. u coupling from semileptonic B decay

Journal Article · Mon Mar 26 04:00:00 EST 1984 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.52.1084· OSTI ID:6827165

Chen, A; Goldberg, M; Horwitz, N; Jawahery, A; Lipari, P; Moneti, G C; Trahern, C G; van Hecke, H; Alam, M S; Csorna, S E

We have used the momentum spectrum of leptons produced in semileptonic B-meson decays to set a 90%-confidence-level upper limit on GAMMA(b..-->..ul..nu..)/GAMMA(b..-->..cl..nu..) of 4%. We also measure the semileptonic branching fractions of the B meson to be (12.0 +- 0.7 +- 0.5)% for electrons and (10.8 +- 0.6 +- 1.0)% for muons.

• Research Organization: Syracuse University, Syracuse, New York 13210
• OSTI ID: 6827165
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 52:13; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

645102* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BRANCHING RATIO
CESR STORAGE RING
DECAY
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
LEPTONS
LIFETIME
MATHEMATICAL SPACE
MESON RESONANCES
MESONS
MONTE CARLO METHOD
MUONS
PARTICLE DECAY
PARTICLE PRODUCTION
PHASE SPACE
PROBABILITY
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
RESONANCE PARTICLES
SEMILEPTONIC DECAY
SPACE
STORAGE RINGS
WEAK PARTICLE DECAY