Particle Identification between Kaon and Pion

Particle identification (PID) is important in LHCb as it enables to distinguish among several par- ticles. Hadronic particle identification is achieved using the information coming from the two Ring Imaging Cherenkov Detectors (RICH) and the tracking system. In this project, to tune the Monte Carlo (MC) to the real data, comparing between the real data and MC was conducted. And also as the first step for the tuning, three part of cut was applied for the number of tracks and then other quantities were compared between real data and MC.