Speaker
Rusa Mandal
(Siegen University)
Description
Semileptonic flavor changing neutral current transitions with a pair of neutrinos in the final state are very accurately determined in the standard model. The most recent Belle II result on $B\to K \nu \bar\nu$ uses an innovative inclusive tagging technique; this together with previous BaBar and Belle results indicates a possible enhancement in the branching fraction of $B\to K \nu \bar\nu$ . We have explored the possibilities of such an enhancement as a signal of new physics within several scenarios such as leptoquark and generic Z′ models, which can also explain some of the other tensions observed in neutral as well as charged current B-decays.
Author
Rusa Mandal
(Siegen University)
Co-authors
Thomas Browder
Nilendra Deshpande
(University of Oregon)
Rahul Sinha
