Isospin structure of penguin diagrams and their consequences in [ital B] meson physics
Journal Article
·
· Physical Review Letters; (United States)
- Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403-5203 (United States)
Isospin structure of electroweak penguin diagrams is different from the gluon-mediated or strong penguin. Given the large top mass, these electroweak contributions are significant. This has the consequence that some previous analyses which relied on a simple isospin structure in charmless [ital B] meson decays become inapplicable. We present the general Hamiltonian in next-to-leading order QCD, and illustrate our conclusion quantitatively for [ital B][r arrow][pi][pi] and [ital B][r arrow][ital K][pi] decays in the factorization approximation. Some remarks on [ital CP] asymmetries in [ital B] meson decays are also made.
- DOE Contract Number:
- FG06-85ER40224
- OSTI ID:
- 6643679
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 74:1; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662210 -- Specific Theories & Interaction Models
662230 -- Quantum Chromodynamics-- (1992-)
662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
BEAUTY PARTICLES
BOSONS
CP INVARIANCE
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FACTORIZATION
FEYNMAN DIAGRAM
FIELD THEORIES
GLUONS
HADRONS
HAMILTONIANS
INVARIANCE PRINCIPLES
ISOSPIN
MATHEMATICAL OPERATORS
MESONS
PARTICLE DECAY
PARTICLE PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
TOP PARTICLES
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY
Conservation Laws
Currents & Their Properties-- (1992-)
662210 -- Specific Theories & Interaction Models
662230 -- Quantum Chromodynamics-- (1992-)
662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
BEAUTY PARTICLES
BOSONS
CP INVARIANCE
DECAY
DIAGRAMS
ELEMENTARY PARTICLES
FACTORIZATION
FEYNMAN DIAGRAM
FIELD THEORIES
GLUONS
HADRONS
HAMILTONIANS
INVARIANCE PRINCIPLES
ISOSPIN
MATHEMATICAL OPERATORS
MESONS
PARTICLE DECAY
PARTICLE PROPERTIES
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
Pa
Particle Systematics-- Unified Theories & Models-- (1992-)
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUANTUM OPERATORS
TOP PARTICLES
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY