No final-state phase ambiguities in additional B sub d decays with large CP violation

Journal Article · Fri Mar 01 04:00:00 EST 1991 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.43.1593· OSTI ID:6255004

Dunietz, I ^[1]; Snyder, A ^[2]

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1. Stanford Linear Accelerator Center, Stanford University, Stanford, California 94309 (US)
2. Indiana University, Bloomington, Indiana 47401 (USA)

The {ital B}{sub {ital d}} decay modes {ital {bar D}}{sup 0}({ital {bar D}}{sup *0}){ital X}{sup 0} generated by the quark process {ital {bar b}}{r arrow}{ital {bar c}}+{ital u{bar d}} have a large {ital CP} asymmetry within the Cabibbo-Kobayashi-Maskawa (CKM) model. Here {ital X}{sup 0} denotes a light, neutral meson with zero strangeness, such as {pi}{sup 0}, {rho}{sup 0}, {omega}, etc. This asymmetry depends {ital only} on a ratio of CKM matrix elements and {ital not} on final-state phases. The CKM model predicts (up to a sign) the same asymmetries for the {ital {bar D}}{sup 0}({ital {bar D}}{sup *0}){ital X}{sup 0}, {psi}{ital K}{sub {ital S}}, and {ital D}{sup +}{ital D{minus}} modes. Adding those modes might lower the required luminosity for observing {ital CP} violation within the CKM model. On the other hand, future high-statistics measurements could reveal violations of the CKM model simply by demonstrating that the modes {psi}{ital K}{sub {ital S}}, {ital D}{sup +}{ital D{minus}} and {ital {bar D}}{sup 0}({ital {bar D}}{sup *0}){ital X}{sup 0} differ in their individual {ital CP} asymmetries.

• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6255004
• Journal Information: Physical Review, D (Particles Fields); (USA), Journal Name: Physical Review, D (Particles Fields); (USA) Vol. 43:5; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
645300 -- High Energy Physics-- Particle Invariance Principles & Symmetries
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BEAUTY MESONS
BEAUTY PARTICLES
BOSONS
BRANCHING RATIO
CABIBBO ANGLE
CP INVARIANCE
DECAY
EIGENSTATES
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONS
INVARIANCE PRINCIPLES
KOBAYASHI-MASKAWA MATRIX
LUMINOSITY
MATHEMATICAL MODELS
MATRICES
MATRIX ELEMENTS
MESONS
OPTICAL PROPERTIES
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
STANDARD MODEL
STRANGENESS
UNIFIED GAUGE MODELS
UNIFIED-FIELD THEORIES