B-identification for Level 2: The Silicon Track Trigger at DØ
نویسندگان
چکیده
منابع مشابه
B-identification for Level 2: The Silicon Track Trigger at DØ
This article describes the Silicon Track Trigger (STT) which has been fully commissioned in 2004 at the DØ experiment. The STT allows to enrich already at the second trigger level the data sample with events containing B-mesons. The STT achieves this by providing within about 50μs tracks with an impact parameter resolution of around 50μm. The article shows preliminary results of the trigger per...
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The initial track parameters derived by the DØ Silicon Track Trigger fitting code assume the Tevatron beams are coincident with the central axis of the silicon microstrip tracker. If this assumption is incorrect, either because the beam is displaced from the axis or because it is tilted with respect to the axis, the tracks resulting from the fits will have apparently large impact parameters, gi...
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This paper describes the principal components of the level 1 trigger system for the DØ experiment during Run IIb of the Tevatron collider at Fermilab. This trigger system was designed to take advantage of the increased luminosity and shorter bunch spacing provided by the Tevatron in Run II. We place an emphasis on the key concepts that are potentially valuable for future experiments. © 2008 Els...
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The Fermilab Tevatron (pp), operating at √ s = 1.96 TeV, is a rich source of B hadrons. The large acceptance in terms of rapidity and transverse momentum of the charged particle tracking system and the muon system make the upgraded Run II DØ detector an excellent tool for B physics. In this article, we report on selected physics results based on the first 250 pb −1 of Run II data. This includes...
متن کاملThe H1 First Level Fast Track Trigger
The HERA collider has recently been upgraded to produce a factor of approximately 5 more luminosity. In parallel, upgrades to the H1 detector and trigger have been necessary. One of the projects was the design of an improved Fast Track Trigger (FTT) which should replace the old track trigger and is based on the central drift chambers of the H1 experiment. This work describes the design and expe...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2006
ISSN: 0920-5632
DOI: 10.1016/j.nuclphysbps.2006.03.066