LHC Preparations for Measurements of Very Rare B Decays

Abstract

As is well known, the rare B-decays and B0→μ+μ− offer a profound probe into the effects of physics beyond the Standard Model (SM). While present experimental upper limits from the Tevatron are roughly a factor of twenty above the SM predictions, the LHC experiments will reach SM values after the first year of nominal LHC luminosity and will allow a measurement of the decay probability. The three LHC experiments, ATLAS, CMS and LHCb are preparing triggers, offline reconstruction algorithms and signal selection strategies for these measurements. In this paper, special attention is devoted to background composition, especially to topologically-similar rare exclusive and exotic decays.