Published December 2001 | Version v1
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(g-2)μ and CP asymmetries in B0d,s→l+l- and b→sγ in SUSY models

  • 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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Publishing Information

Imprint Pagination
9 p.
Report number
IC--2001/174

Optional Information

Notes
22 refs, 2 figs