Search for new physics via CP violation in $B_{d,s} \to l^+ l^-

Details Search for new physics via CP violation in $B_{d,s} \to l^+ l^- Search for new physics via CP violation in $B_{d,s} \to l^+ l^-

2000-11-07

arxiv.org/abs/hep-ph/0011089v2

Phys.Lett. B525 (2002) 107-113

Physics

High Energy Physics

High Energy Physics - Phenomenology

shortened version, latex, 10 pages, 2 figures, comments added

Scientific paper

10.1016/S0370-2693(01)01427-7

It is shown that in the approximation of $|\frac{q}{p}|$=1 the CP violation in $B^0_{d,s} \to l^+ l^-$ decays vanishes in SM. In a 2HDM with CP violating phases and MSSM the CP asymmetries depend on the parameters of models and can be as large as 40% for $B^0_d$ and 3% for $B^0_s$. An observation of CP asymmetry in the decays would unambiguously signal the existence of new physics.

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