High luminosity optimized Jefferson Lab SBS setup for K_LL, GEn-RP and GEp-V experiments

Super BigBite Spectrometer programme at Jefferson Lab plans to run K_LL , GEn-RP and GEp-V experiments this year, which will improve the figure of merit of these measurements significantly due to the open geometry large acceptance spectrometer used for hadron detection. However, the open geometry and the direct line of sight from the target to the tracking detectors exposing them to an unprecedentedly high luminosity introduce us to a new set of challenges in getting the optimum performance out of the tracking detectors. SBS tracker consists of large area Gas Electron Multiplier (GEM) detectors designed to handle high background rates and to provide good position resolution. Even using GEM detectors, traditional high voltage distributions of the detectors need to be optimized to enhance the efficiency at high background rates. Furthermore, tracking algorithms are updated to avoid losses of tracking efficiency caused by high background rates. Presentation will include a brief description about the physics motivation for these experiments, tracking efficiency results comparing upgraded systems operating in beam with simulations. These upgrades will be beneficial for future experiments such as the Solenoidal Large Intensity Device (SoLID).