Published December 2001
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(g-2)μ and CP asymmetries in B0d,s→l+l- and b→sγ in SUSY models
Creators
- 1. Institute of Theoretical Physics, Academia Sinica, Beijing (China)
- 2. Abdus Salam International Centre for Theoretical Physics, Trieste (Italy)
Description
We show that with good fit to the muon g-2 constraint, the CP asymmetry can be as large as 25% (15%) for Bd0→τ+τ- (Bd0→μ+μ-) in SUGRA models with nonuniversal gaugino masses and MSSM. If tau events indentified at B factories the CP asymmetry in Bd0→τ+τ- can be a powerful probe on physics beyond SM. An interesting case is that new physics gives a prediction on the branching ratio which is still in the uncertain region of the SM prediction. The CP asymmetry for Bd0→l+l- in this case can still reach 20%. So it is powerful to shed light on physics beyond SM while the CP asymmetry of b→sγ in this case can only reach 2% at most which is too small to draw a definite conclusion on new physics effects at B factories. (author)
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Additional details
Publishing Information
- Imprint Pagination
- 9 p.
- Report number
- IC--2001/174
INIS
- Country of Publication
- International Atomic Energy Agency (IAEA)
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 33011169
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; B MESONS; BRANCHING RATIO; CP INVARIANCE; MUONS; PARTICLE MODELS; SPARTICLES; STANDARD MODEL; SUPERSYMMETRY; TAU PARTICLES
- Descriptors DEC
- BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; HADRONS; HEAVY LEPTONS; INVARIANCE PRINCIPLES; LEPTONS; MATHEMATICAL MODELS; MESONS; PARTICLE MODELS; POSTULATED PARTICLES; PSEUDOSCALAR MESONS; QUANTUM FIELD THEORY; SYMMETRY; UNIFIED GAUGE MODELS
Optional Information
- Notes
- 22 refs, 2 figs