Penguin-diagram-induced [ital CP] violation in charmless exclusive hadronic [ital B] decays

Journal Article · Mon Nov 01 00:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.4155· OSTI ID:5917716

Du, D ^[1]; Xing, Z ^[2]

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1. Institute of High Energy Physics, P.O. Box 918 (4), Beijing 100039 (China)
2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China) Institute of High Energy Physics, P.O. Box 918 (4), Beijing 100039 (China)

We make a detailed analysis of some charmless self-tagging [ital B] decays, e.g., [ital B][sub [ital u]][sup +][r arrow][ital K][sup +][ital [bar K]0], [ital K][sup *+][pi][sup 0], and [ital B][sub [ital d]][sup 0][r arrow][ital K][sup +][pi][sup [minus]], which are of great experimental interest for probing [ital CP] violation in the decay amplitude. A few neutral [ital B] decays into [ital CP] eigenstates such as [ital B][sub [ital d]][sup 0][r arrow][pi][sup +][pi][sup [minus]] are also studied on the [Upsilon](4[ital S]) resonance to distinguish [ital CP] violation induced by penguin loops from that via [ital B][sub [ital d]][sup 0-][ital [bar B]][sub [ital d]][sup 0] mixing. We present a clear factorization description of partial decay rates and [ital CP] asymmetries for [ital B][r arrow][ital PP], [ital PV], and [ital VV] processes, and illustrate the rescattering effects of final-state particles on [ital CP] violation in those tree-penguin interfering channels. Our numerical estimates show that it is possible to uncover the penguin-diagram-induced [ital CP] violation in a handful of self-tagging modes if about 10[sup 8]--10[sup 9] [ital B] events are accumulated.

• OSTI ID: 5917716
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 48:9; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
WEAK HADRONIC DECAY
CP INVARIANCE
ASYMMETRY
BRANCHING RATIO
FACTORIZATION
MIXING
VIOLATIONS
BEAUTY PARTICLES
BOSONS
DECAY
ELEMENTARY PARTICLES
HADRONS
INVARIANCE PRINCIPLES
MESONS
PARTICLE DECAY
PSEUDOSCALAR MESONS
WEAK PARTICLE DECAY
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