Non-leptonic charmless Bc decays and their search at LHCb
Sebastien Descotes-Genon, Jibo He, Emi Kou, Patrick Robbe
TL;DR
This paper analyzes non-leptonic charmless Bc meson decays into light mesons, deriving SU(3) relations, estimating annihilation contributions, and discussing prospects for detecting these decays at LHCb.
Contribution
It introduces simple SU(3) relations for Bc decays via tree annihilation and provides two estimates for annihilation contributions, aiding future experimental searches.
Findings
Derived SU(3) relations among decay channels
Provided two estimates for annihilation contributions
Discussed potential for observing these decays at LHCb
Abstract
We discuss the decay of Bc mesons into two light mesons (pi, K^(*), eta', rho, omega, phi). All these decay channels come from a single type of diagram, namely tree annihilation. This allows us to derive extremely simple SU(3) relations among these processes. The size of annihilation contributions is an important issue in B physics, and we provide two different estimates in the case of non-leptonic charmless Bc decays, either a comparison with annihilation decays of heavy-light mesons or a perturbative model inspired by QCD factorisation. We finally discuss a possible search for these channels at LHCb.
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