Approximate method for helical particle trajectory reconstruction in high energy physics experiments

Abstract High energy physics experiments, in particular experiments at the LHC, require reconstruction of charged particle trajectories. Methods reconstructing such trajectories have been known for decades, yet applications Luminosity LHC this to be fast enough suitable online event filtering. A traversing detector volume leaves signals active elements from which trajectory is reconstructed. If submerged a uniform magnetic field that approximately helical. Since collision results production many particles, especially high luminosities, first phase formation candidate composed small subset measurements are then subject resource intensive precise track parameters estimation. In paper, we suggest new approach could used perform classification. The proposed procedure utilizes z coordinate longitudinal direction addition x , y coordinates plane perpendicular field. suggested algorithm works equally well helical with different proximities beamline beneficial when searching products particles longer lifetimes.