Rare [formula omitted] decay in light cone QCD sum rule

Abstract

Using the light cone QCD Sum Rules Method, we study the rare B → ν νγ decay and find that the branching ratios are, B(B s → ν νγ) ⋍ 7.5 × 10 −8 , B(B d → ν νγ) ⋍ 4.2 × 10 −9 . A comparison of our results on branching ratio with constituent quark and pole dominance model predictions are presented.