Exclusive charmless nonleptonic decays of the B sub d sup 0 meson in the standard model

Journal Article · Wed Nov 01 00:00:00 EST 1989 · Physical Review (Section) D: Particles and Fields; (USA)

DOI:https://doi.org/10.1103/PhysRevD.40.2934· OSTI ID:5121782

Tanimoto, M ^[1]; Shinmoto, T; Hirayama, K; Senba, K ^[2]

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1. Science Education Laboratory, Ehime University, 790 Matsuyama, Japan (JP)
2. Department of Physics, Ehime University, 790 Matsuyama, Japan (JP)

We have studied the charmless nonleptonic decay such as the {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup +}{pi}{sup {minus}}, {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup +}{rho}{sup {minus}}, {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup *+}{pi}{sup {minus}} decays, which include contributions from both Born process and penguin process, in the standard model. The branching ratios of these three decays are predicted to be {similar to}10{sup {minus}5}, {similar to}10{sup {minus}5}--10{sup {minus}6}, and {similar to}10{sup {minus}5}, respectively. For the {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup +}{pi}{sup {minus}} decay, the amplitude is dominated by the timelike penguin process. For the {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup +}{rho}{sup {minus}} decay, the dominant amplitude follows from the spacelike penguin process, which is ambiguous due to the annihilation form factor. For the {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup *+}{pi}{sup {minus}} decay, the contributions of the three processes are comparable to each other. The precise determination of the annihilation form factor is necessary to predict reliably the branching ratios of the {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup +}{rho}{sup {minus}} and {ital B}{sub {ital d}}{sup 0}{r arrow}{ital K}{sup *+}{pi}{sup {minus}} decays.

• OSTI ID: 5121782
• Journal Information: Physical Review (Section) D: Particles and Fields; (USA), Vol. 40:9; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B NEUTRAL MESONS
WEAK HADRONIC DECAY
ANNIHILATION
BRANCHING RATIO
EXCLUSIVE INTERACTIONS
FLAVOR MODEL
FORM FACTORS
GLUONS
HAMILTONIANS
KAONS PLUS
KOBAYASHI-MASKAWA MATRIX
PIONS MINUS
QUANTUM CHROMODYNAMICS
STANDARD MODEL
B MESONS
BASIC INTERACTIONS
BOSONS
COMPOSITE MODELS
DECAY
ELECTROMAGNETIC INTERACTIONS
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONS
INTERACTIONS
KAONS
MATHEMATICAL MODELS
MATHEMATICAL OPERATORS
MATRICES
MESONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
QUARK MODEL
STRANGE MESONS
STRANGE PARTICLES
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
WEAK PARTICLE DECAY
645203* - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties