CMS B Physics Reach

At the design luminosity of 10^34 cm^-2 s^-1, about 10^6 bb pairs/s are expected at the Large Hadron Collider. With such huge statistics and the very precise tracking of CMS detector B mesons can be investigated for CP violation, Bs-Bsbar mixing and rare decays. The trigger, however, cannot retain all bb events for a later selection of exclusive B decays. A dedicated trigger strategy, which uses tracking immediately after the first trigger stage, is presented and results on few important benchmark channels are given.