B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in general MSSM

Details B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in general MSSM B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in general MSSM

2002-11-12

arxiv.org/abs/hep-ph/0211182v1

Eur.Phys.J. C25 (2002) 615-622

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk presented by P. Ko at SUSY02, Hamburg, June 2002, to appear in Proceedings

Scientific paper

10.1140/epjc/s2002-01029-x

We consider the gluino-mediated SUSY contributions to B0 - B0 bar mixing, B -> J/psi K_S and B -> X_d gamma in the mass insertion approximation. We find the (LL) mixing parameter can be as large as |delta_{13}^d_{LL}| < 2*10^-1, but the (LR) mixing is strongly constrained by the B -> X_d gamma branching ratio and we find |delta_{13}^d_{LR}| < 10^-2. The implications for the direct CP asymmetry in B -> X_d gamma and the dilepton charge asymmetry (A_{ll}) are also discussed, where substantial deviations from the standard model predictions are possible.

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