A new fast track-fit algorithm based on broken lines

A new fast track-fit algorithm based on broken lines

The determination of the particle momentum in HEP tracking chambers requires a fit of a parametrization to the measured points. Various effects can result in deviations to the ideal helix curve in the magnetic field of a solenoid, and the fit with a pure helix parametrization is not optimal. One effect is multiple scattering, which causes a “random walk” of the particle and affects especially l...

A New Track Reconstruction Algorithm suitable for Parallel Pro- cessing based on Hit Triplets and Broken Lines

Track reconstruction in high track multiplicity environments at current and future high rate particle physics experiments is a big challenge and very time consuming. The search for track seeds and the fitting of track candidates are usually the most time consuming steps in the track reconstruction. Here, a new and fast track reconstruction method based on hit triplets is proposed which exploits...

Fast SIMDized Kalman filter based track fit

Modern high energy physics experiments have to process terabytes of input data produced in particle collisions. The core of the data reconstruction in high energy physics is the Kalman lter. Therefore, the speed of Kalman lter based algorithms is of crucial importance in on-line data processing. This is especially true for the combinatorial track nding stage where the Kalman lter based track t ...

A New Fast Data Encryption Algorithm (FDE)

A New Fast Data Encryption Algorithm (FDE)