title: The readout system of the HERA-B Inner Tracker and prospects of HERA-B in the field of Drell-Yan physics
creator: Gradl, Wolfgang
subject: ddc-530
subject: 530 Physics
description: The HERA-B experiment at the HERA accelerator at DESY is designed and built to measure CP violation in the system of neutral B mesons.  One sub-detector is the Inner Tracker, which is built of Micro-Strip Gas Chambers with Gas Electron Multiplier (GEM-MSGC) with about 120,000 readout channels. Using results of test beam experiments, the readout system of the Inner Tracker was finalised in its design.  At HERA-B, it was extended from small test installations to the full system during the installation 1999/2000.  The software needed for the processing of the raw data was developed.  This thesis describes the readout hardware and software in use at HERA-B and the steps needed for commissioning. Results from the first year of running at HERA-B are reported. In a second part of this thesis, the prospects of HERA-B to contribute to the field of Drell-Yan physics are evaluated, where significant deviations from the predictions of perturbative QCD were observed. Starting from an analysis of the di-muon triggered data of the run period 2000, the expected number of high-mass muon pairs produced by the Drell-Yan process is extrapolated.  With a conservative estimate of the outcome of the detector and trigger improvements, about 26,000 high-mass Drell-Yan pairs are expected for the run period 2002. Although the measurement will be difficult due to the low number of events at higher transverse momentum, this will allow a first measurement of the angular distributions of Drell-Yan pairs produced in pN collisions.
date: 2001
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/1768/1/Dissertation_WGradl_2001.pdf
identifier: DOI:10.11588/heidok.00001768
identifier: urn:nbn:de:bsz:16-opus-17685
identifier:   Gradl, Wolfgang  (2001) The readout system of the HERA-B Inner Tracker and prospects of HERA-B in the field of Drell-Yan physics.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/1768/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng