Analysis of the decay [ital B][r arrow][ital D][sup *][ital Xl][bar [nu]][sub [ital l]] with predictions from heavy quark and chiral symmetry

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.2121· OSTI ID:6277041

Lee, C L.Y. ^[1]

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1. California Institute of Technology, Pasadena, California 91125 (United States)

This paper considers the implications of the heavy quark and chiral symmetries for the semileptonic decay [ital B][r arrow][ital D][sup *][ital Xl][bar [nu]][sub [ital l]]. The general kinematic analysis for decays of the form pseudoscalar meson[r arrow]vector meson+pseudoscalar meson+lepton+antilepton is presented. This formalism is applied to the above exclusive decay which allows the differential decay rate to be expressed in a form that is ideally suited for the experimental determination of the different form factors for the process through angular distribution measurements. Heavy quark and chiral symmetry predictions for the form factors are presented, and the differential decay rate is calculated in the kinematic region where chiral perturbation theory is valid.

• DOE Contract Number: AC03-81ER40050
• OSTI ID: 6277041
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 48:5; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662350* -- Decays of Mesons-- (1992-)
662420 -- Properties of Mesons & Meson Resonances-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
B MESONS
BEAUTY PARTICLES
BOSONS
CHIRAL SYMMETRY
DECAY
DISTRIBUTION
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FORM FACTORS
GOLDSTONE BOSONS
HADRONS
LEPTONS
MATTER
MESONS
PARTICLE DECAY
PARTICLE PROPERTIES
PERTURBATION THEORY
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SEMILEPTONIC DECAY
SYMMETRY
VECTOR MESONS
WEAK PARTICLE DECAY