Decay B→ K^∗(→ Kπ) ℓ⁺ ℓ^- in covariant quark model

2015/11/24 by Stanislav Dubnička, Anna Z. Dubničková, Nurgul Habyl +3 · 1 citation
Physics and Astronomy · #hep-ph #hep-ex #nucl-th

paper · pdf · doi:10.1007/s00601-015-1034-4

39 pages, 11 figures. References and discussion added. Accepted by Few-Body Systems for publication. arXiv admin note: text overlap with arXiv:hep-ph/0608015 by other authors

arxiv created 2015/11/24 · arxiv updated 2016/01/27

Abstract

Our article is devoted to the study of the rare B→ K^∗ ℓ⁺ℓ^-~decay where ℓ=e,μ,τ. We compute the relevant form factors in the framework of the covariant quark model with infrared confinement in the full kinematical momentum transfer region. The calculated form factors are used to evaluate branching fractions and polarization observables in the cascade decay B→ K^∗(→ Kπ)ℓ⁺ℓ^-. We compare the obtained results with available experimental data and the results from other theoretical approaches.

Citations

• Light baryon magnetic moments and N -> Delta gamma transition in a Lorentz covariant chiral quark approach

Cited by

• DecayBs→ϕℓ+ℓ−in covariant quark model

Related

• Rare b → d decays in covariant confined quark model
• Angular observables and branching ratio for B_s→ ϕℓ⁺ ℓ^- decay
• B → K^* ℓ⁺ ℓ^- as a probe of Universal Extra Dimensions
• Study of b→ c induced B^* → V ℓ ν_ℓ decays
• QCD Sum Rule Analysis of B → (K,K^*) (ℓ⁺ℓ^-,νν) Decays