Efficiency Measurement of Momentum Imbalance Trigger at CMS for Supersymmetry Searches

Abstract

In searches for new fundamental particles in high energy particle collisions, the ability for a detector to select collisions that might signify the presence of such particles is one of the top priorities. Equally important is to determine how well the selection is done so that procedures can be used to optimize the selection. One such method of collision event selection is known as the momentum imbalance trigger at the CMS detector at the LHC for use in a search for new particles from an extension of the standard model. In this thesis, We measure the efficiency as a function of the trigger as well as the effect the number of collisions that occur at the same time has on its performance.