Influence of the B sup * resonance on B r arrow. pi. e. nu. sub e

Journal Article · Mon Jan 01 04:00:00 EST 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.151· OSTI ID:6965257

Isgur, N ^[1]; Wise, M B ^[2]

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1. Department of Physics, University of Toronto, Toronto, Canada M5S 1A7 (CA)
2. California Institute of Technology, Pasadena, California 91125 (USA)

In the chiral limit and as {ital m}{sub {ital b}}{r arrow}{infinity}, the decay {ital {bar B}}{r arrow}{pi}{sup +}e{bar {nu}}{sub e} would be dominated near zero pionic recoil by the effects of the {ital B}{sup *} resonance. We examine the influence of this mechanism on the {ital {bar B}}{r arrow}{ital Xe}{bar {nu}}{sub {ital e}} electron spectrum in the region near the end point which is important for the determination of the Kobayashi-Maskawa matrix element {ital V}{sub {ital ub}}.

• DOE Contract Number: AC03-81ER40050
• OSTI ID: 6965257
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 41:1; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645203* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
645400 -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTILEPTONS
ANTIMATTER
ANTINEUTRINOS
ANTIPARTICLES
B MESONS
BOSONS
COMPOSITE MODELS
DECAY
ELECTRON ANTINEUTRINOS
ELECTRON NEUTRINOS
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
HADRONS
KOBAYASHI-MASKAWA MATRIX
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATRICES
MATRIX ELEMENTS
MESONS
NEUTRINOS
PARTICLE DECAY
PARTICLE MODELS
PERTURBATION THEORY
PIONS
PIONS PLUS
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SEMILEPTONIC DECAY
UNIFIED-FIELD THEORIES
WEAK PARTICLE DECAY