High $p_T$ Level 2 Trigger Algorithm for TRT Detector in ATRIG

This note describes a TRT part of Level 2 tracker triggeralgorithm implemented in the ATRIG trigger simulation package. The performance of algorithm is demostrated in terms ofefficiency for single leptons, jets rejection , fake tracks rate and execution time. The detailed description of algorithm andselection cuts to choose the best candidates from multiple tracks is given. The effect of drift time mesurements in TRT is demonstrated. The possible development of algorithm is discussed.