Tracking Charged \ (b\) -Hadrons: Feasibility Study of the Use of Inner Trackers to Improve \ (B^+ (₂) \) Reconstruction

A method to improve the reconstruction of charged b-hadron decays is proposed that uses energy deposits left by the hadron in tracking detectors close to the production point. Performances are shown for different detector configurations and different number of deposits reconstructed, as obtained in simulation, for \ (b\) -hadrons produced in high energy proton-proton collisions. It is shown that up to few percent of the \ (B^+\) mesons could leave two deposits before decaying, depending on the detector configuration. The presented results can inform the design of future inner detectors. This method could increase significantly the physics reach of flavour physics at hadron colliders, opening it to decays with missing particles and vertex information that are otherwise unreconstructable.