# Meson decays Bs→J/ψ+η(′) and B→K(⁎)+2ν in the covariant quark model

```@inproceedings{Dubnika2013MesonDB,
title={Meson decays Bs→J/ψ+η(′) and B→K(⁎)+2ν in the covariant quark model},
author={Stanislav Dubni{\vc}ka and Anna Zuzana Dubni{\vc}kov{\'a} and Mikhail A. Ivanov and Andrej Liptaj},
year={2013}
}```
Abstract We briefly present the covariant quark model with some of its key features. Next we use the model to predict the decay widths of B mesons in processes B s → J / ψ + η ( ′ ) and B → K ( ⁎ ) + 2 ν . We get following branching fractions: B ( B s → J / ψ + η ) = 4.67 × 10 − 4 , B ( B s → J / ψ + η ′ ) = 4.04 × 10 − 4 , Γ ( B s → J / ψ + η ′ ) / Γ ( B s → J / ψ + η ) = 0.86 , B ( B → K ν ν ¯ ) = 0.63 × 10 − 5 and B ( B → K ⁎ ν ν ¯ ) = 7.9 × 10 − 5 . These are then compared to experimental… CONTINUE READING