The concurrent track evolution algorithm: extension for track finding in the inhomogeneous magnetic field of the HERA-B spectrometer

Abstract

The concurrent track evolution method, which was introduced in a previous paper, has been further explored by applying it to the propagation of track candidates into an inhomogeneous magnetic field volume equipped with tracking detectors, as is typical for forward B spectrometers like HERA-B or LHCb. Compared to the field-free case, the method was extended to three-dimensional propagation, with special measures necessary to achieve fast transport in the presence of a fast-varying magnetic field. The performance of the method is tested on HERA-B Monte Carlo events with full detector simulation and a realistic spectrometer geometry. (orig.)15 refs.Available from TIB Hannover: RA 2999(98-142) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman