The Outer Tracker Detector of the HERA-B Experiment. Part III: Operation and Performance

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dc.creatorAlbrecht, H.
dc.date2007-01-10
dc.date2007-05-24
dc.date.accessioned2026-07-07T11:24:09Z
dc.date.available2026-07-07T11:24:09Z
dc.descriptionIn this paper we describe the operation and performance of the HERA-B Outer Tracker, a 112674 channel system of planar drift tube layers. The performance of the HERA-B Outer Tracker system fullfilled all requirements for stable and efficient operation in a hadronic environment, thus confirming the adequacy of the honeycomb drift tube technology and of the front-end readout system. The detector was stably operated with a gas gain of 30000 in an Ar/CF4/CO2 (65:30:5) gas mixture, yielding a good efficiency for triggering and track reconstruction, larger than 95 % for tracks with momenta above 5 GeV/c. The hit resolution of the drift cells was 300 to 320 micrometers and the relative momentum resolution can be described as: sigma(p)/p (in %) = (1.61 +- 0.02) + (0.0051 +- 0.0006) p. At the end of the HERA-B running no aging effects in the Outer Tracker cells were observed.
dc.description38 pages, 20 figures. v2: Added clarifications about trigger efficiency, momentum resolution and alignment precision. Corrected typos. Improved figure quality
dc.identifierhttps://arxiv.org/abs/physics/0701122
dc.identifierhttp://arxiv.org/abs/physics/0701122
dc.identifierNucl.Instrum.Meth.A576:312-330,2007
dc.identifierdoi:10.1016/j.nima.2007.03.025
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195134
dc.subjectInstrumentation and Detectors
dc.titleThe Outer Tracker Detector of the HERA-B Experiment. Part III: Operation and Performance
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