Z -mediated flavor-changing neutral currents and their implications for CP asymmetries in B sup 0 decays

Journal Article · Sat Sep 01 04:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.42.1477· OSTI ID:6233232

Nir, Y ^[1]; Silverman, D ^[2]

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1. Stanford Linear Accelerator Center, Stanford University, Stanford, CA (USA)
2. Department of Physics, University of California, Irvine, CA (USA)

In models where the quark sector is extended in a nonsequential way, there are {ital Z}-mediated flavor-changing neutral currents at the tree level. These may dominate mixing in neutral-{ital B} systems. Unitarity of the three-generation Cabibbo-Kobayashi-Maskawa matrix is violated, and new phases take part in quark mixing. All these effects modify significantly the predictions for {ital CP} asymmetries in {ital B}{sup 0} decays. The various aspects of new physics can be probed separately by testing specific relations among these {ital CP} asymmetries.

• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6233232
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 42:5; 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
B MESONS
B NEUTRAL MESONS
BOSONS
CHARGED-CURRENT INTERACTIONS
COMPOSITE MODELS
CP INVARIANCE
DECAY
EIGENSTATES
ELEMENTARY PARTICLES
FIELD THEORIES
FLAVOR MODEL
HADRONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
KOBAYASHI-MASKAWA MATRIX
LIE GROUPS
MATHEMATICAL MODELS
MATRICES
MESONS
NEUTRAL-CURRENT INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PSEUDOSCALAR MESONS
QUARK MODEL
STANDARD MODEL
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES
UNITARITY
Z NEUTRAL BOSONS