Charged Particle Identification Using Calorimetry and Tracking at the Belle II Experiment

Charged Particle Identification Using Calorimetry and Tracking at the Belle II Experiment

Joseph T Nunziata
Atanu Pathak, University of Louisville
Swagato Banerjee, University of Louisville

Abstract

Particle identification (PID) is a critical procedure carried out in high energy physics experiments in search of new physics. When particles of matter (i.e., an electron) and antimatter (i.e., a positron) collide, new types of particles may form given certain conditions. Such particles may be classified as hadrons--which feel the strong nuclear force--and leptons--which do not. Identifying particles at the Belle II experiment is done by combining the measurement of energy deposited in the calorimeter with the measurement of track momentum in the tracker. In a tau lepton decay sample, particles such as electrons, muons, and pions may be separated and identified using such measurements.