Time-Dependent CP Asymmetries in b {yields} s Penguins

Journal Article · Tue Jul 11 04:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2220370· OSTI ID:20875814

Miyake, H ^[1]

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1. Department of Physics, Osaka University, 1-1, Machikaneyama, Toyonaka-city, Osaka-pre. (Japan)

We present measurements of time-dependent CP asymmetry parameters in B{sup 0} {yields} {phi}(1020)K{sup 0}, {eta}'K{sup 0}, K{sub S}{sup 0}K{sub S}{sup 0}K{sub S}{sup 0} K{sub S}{sup 0}, K{sub S}{sup 0}{pi}{sup 0}, f{sub 0}(980)K{sub S}{sup 0}, {omega}(782)K{sub S}{sup 0} and K{sup +}K{sup -}K{sub S}{sup 0} decays based on a sample of 386 x 106BB(bar sign) pairs collected at the {upsilon}(4S) resonance with the Belle detector at the KEKB energy asymmetric e+e- collider. These decays are dominated by the b {yields} s gluonic penguin transition and are sensitive to new CP-violating phases from physics beyond the standard model. One neutral meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. We also perform measurement of time-dependent CP asymmetry parameters in B{sup 0} {yields} K{sub S}{sup 0}{gamma} decay that is dominated by the b {yields} s radiative penguin.

• OSTI ID: 20875814
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 842; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B NEUTRAL MESONS
COLLIDING BEAMS
CP INVARIANCE
DISTRIBUTION
ELECTRON-POSITRON INTERACTIONS
ETA MESONS
F0-980 MESONS
FLAVOR MODEL
HADRONIC PARTICLE DECAY
KAONS MINUS
KAONS NEUTRAL
KAONS PLUS
MULTIPARTICLE SPECTROMETERS
OMEGA-782 MESONS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PHI-1020 MESONS
RESONANCE PARTICLES
STANDARD MODEL
TIME DEPENDENCE