Unparticle physics effects on direct CP violation

Journal Article · Sat Dec 01 04:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.115003· OSTI ID:21023947

Chen, C -H ^[1]; Geng, C -Q ^[2]

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1. Department of Physics, National Cheng-Kung University, Tainan 701, Taiwan (China)
2. Department of Physics, National Tsing-Hua University, Hsinchu 300, Taiwan (China)

The effects of the peculiar CP conserving phases in unparticle propagators are explored. We find that the phases have a great impact on CP violation. We adopt the decays B{sub d}{yields}{pi}{sup +}{pi}{sup -} and B{sub d}{yields}l{sup -}l{sup +} as the illustrators to demonstrate the influences of these phases on the direct CP asymmetries. In particular, we emphasize that unparticle physics is the only model suggested to date that could give the direct CP asymmetries in B{sub d}{yields}l{sup -}l{sup +} as large as 15%. We also point out that the unparticle phases could be probed in B{yields}K*l{sup +}l{sup -} decays by using T-odd correlations.

• OSTI ID: 21023947
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 11 Vol. 76; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
B MESONS
CORRELATIONS
CP INVARIANCE
HADRONIC PARTICLE DECAY
K*-892 MESONS
LEPTONIC DECAY
LEPTONS
PIONS MINUS
PIONS PLUS
PROPAGATOR
SEMILEPTONIC DECAY