Description
The Belle-II experiment has recently reported the first measurement of $B^+ \to K^+ \nu \bar{\nu}$ decay which exceeds the Standard Model prediction by approximately 2.7σ. The deviation may indicate the
presence of new physics beyond the Standard Model in the $b \to s\nu \nu$ sector. Under this assumption, we study the hadronic $\Lambda_b \to \Lambda(\to p \pi)$and $\Lambda_b \to \Lambda^*(\to NK) \nu \nu$ decays within both the Standard Model and beyond. We work in a low-energy effective field theory framework with additional light
right-handed neutrinos. We calculate the differential branching ratios of these decay modes and explore the implications of the Belle-II results through various observables.
Authors
Mr
Dargi Shameer
(International Institute of Information Technology, Hyderabad)
Dr
Diganta Das
(International Institute of Information Technology, Hyderabad)
Ria sain
