Excited charm mesons in semileptonic B decay and their contributions to a Bjorken sum rule

Journal Article · Thu Jan 31 23:00:00 EST 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.819· OSTI ID:5908744

Isgur, N ^[1]; Wise, M B ^[2]

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1. Continuous Electron Beam Accelerator Facility, Newport News, VA (USA)
2. California Institute of Technology, Pasadena, CA (USA)

It has recently been shown that hadrons containing a single heavy quark exhibit a new flavor-spin symmetry of QCD. We exploit this symmetry to obtain model-independent predictions for the 14 form factors in weak decays from the ground-state pseudoscalar meson {ital P}{sub {ital Q}{ital i}} of a heavy quark {ital Q}{sub {ital i}} to the low-lying positive-parity excited states of a heavy quark {ital Q}{sub {ital j}} in terms of two universal functions of momentum transfer. These predictions are of interest in the study of {ital {bar B}}{r arrow}{ital D}{sub 2}{sup *}(2460), {ital D}{sub 1}(2420), {ital D}{sub 1}({similar to}2360), and {ital D}{sub 0}{sup *}({similar to}2360) semileptonic decays. We also discuss the connection between these results and the slope of the function {xi} (which determines the {ital {bar B}}{r arrow}{ital D} and {ital {bar B}}{r arrow}{ital D}{sup *} transition form factors) given by a heavy-quark sum rule suggested by Bjorken.

• DOE Contract Number: AC03-81ER40050; AC05-84ER40150
• OSTI ID: 5908744
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 43:3; 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
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR MOMENTUM
ANTIMATTER
ANTIMESONS
ANTIPARTICLES
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
CHARM PARTICLES
CHARMED MESONS
COMPOSITE MODELS
D MESONS
DECAY
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
FLAVOR MODEL
FORM FACTORS
HADRONS
INVARIANCE PRINCIPLES
LORENTZ INVARIANCE
MATHEMATICAL MODELS
MESONS
MOMENTUM TRANSFER
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
SEMILEPTONIC DECAY
SPIN
SUM RULES
WEAK PARTICLE DECAY