Hera-b 98{206 Software 98{026 Ranger { a Pattern Recognition Algorithm for the Hera-b Main Tracking System Part Iii: Tracking in the Trigger Chambers
A tracking algorithm based on the Concurrent Track Evolution method has been developed to propagate track candidates which have been found in the main tracking system between vertex detector and RICH into the \trigger chamber" area between RICH and electromagnetic calorimeter. The performance of the method is tested on HERA-B Monte Carlo events with full detector simulation and in the framework of the current software environment.
Hera-b 98{154 Software 98{019 Ranger { a Pattern Recognition Algorithm for the Hera-b Main Tracking System Part Ii: the Hera-b Magnet Tracker
A method for reconstructing tracks in the inhomogeneous magnetic eld of the HERA-B spectrometer has been developed. It is based on an extension of the Concurrent Track Evolution method, which was originally introduced for pattern recognition in the pattern tracker 1]. The method uses now three-dimensional propagation, with special measures necessary to achieve fast transport in the presence of a highly variable magnetic eld. The performance of the method is tested on HERA-B Monte Carlo events with full detector simulation and in the framework of the current software environment.
Online track reconstruction for HERA-B
Abstract The reconstruction of beauty hadrons in pN interactions, generated by suspending a wire target in the halo of the HERA proton beam, will have to be performed online, in tune with the HERA-B data acquistion. The challenges imposed by the huge track density and data rate, the solutions which have been developed, their performance tested on simulated data and a concept for a scalable processor farm are presented.