Neutrino mixing and large CP violation in B physics -: art. no. 075013

We show that in seesaw models of neutrino mass in a SUSY SO(10) context, the observed large mixing in atmospheric neutrinos naturally leads to large b-s transitions. If the associated new CP phase turns out to be large, this SUSY contribution can drastically affect the CP violation in some of the B decay channels yielding the beta and gamma angles of the unitarity triangle. They can even produce sizable CP asymmetries in some decay modes which are not CP violating in the standard model context. Hence the observed large neutrino mixing makes observations of the low energy SUSY effect in some CP violating decay channels potentially promising in spite of the agreement between the standard model and data in K and B physics so far.