Analytical and Numerical Flash-Algorithms for Track Fits

TL;DR

This paper presents flash-algorithm track-reconstruction routines that are thousands of times faster than traditional methods, significantly improving alignment resolution in the ATLAS Pixel Detector test setup.

Contribution

Introduction of ultra-fast flash-algorithm track reconstruction methods with demonstrated high efficiency and improved alignment resolution.

Findings

Speed factors of 3000-4000 over traditional routines

60-fold increase in alignment resolution

Successful application in ATLAS Pixel Detector test setup

Abstract

Flash-algorithm track-reconstruction routines with speed factors 3000-4000 in excess those of traditional iterative routines are presented. The methods were successfully tested in the alignment of the Test Beam setup for the ATLAS Pixel Detector MCM-D modules yielding a 60 fold increase in alignment resolution over iterative routines, for the same amount of alocated CPU time.