Rare K and B decays with non-standard missing energy

Abstract

The rare K and B semileptonic decays into neutrino pairs are well-known to be extremely sensitive to non-standard physics in the quark sector. In this talk, their capabilities to signal New Physics in the leptonic sector, or even to reveal entirely new invisible sectors, are analyzed.Comment: Talk given at CKM2010, 6th International Workshop on the CKM Unitarity Triangle, University of Warwick, UK, 6-10 September 201