Abstract
In the framework of three-point QCD sum rules, the form factors for the semileptonic decays of Bc+→Bs(Bs∗)l+νl are calculated with account for the Coulomb-like αs/v -corrections in the heavy quarkonium. The generalized relations due to the spin symmetry of HQET / NRQCD for the form factors are derived at the recoil momentum close to zero. The nonleptonic decays are studied using the assumption on the factorization. The Bc -meson lifetime is estimated by summing up the dominating exclusive modes in the c→s transition combining the current calculations with the previous analysis of b→c decays in the sum rules of QCD and NRQCD.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
