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Design and performance studies of a track trigger for the high luminosity LHC
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, High Energy Physics.
2013 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

At the high luminosity LHC the current L1 trigger of ATLAS will not be able to reduce the number of events to a level accepted by the higher level triggers. It is therefore of importance to implement new strategies of triggering to be able to continue successful operation. This study examined an RoI-seeded muon track trigger in the Higgs to tau-tau to mu-mu channel and found that the ability to select signal events was very good, even at five times rejection of soft minimum bias events compared to the current trigger. The overall trigger efficiency for selected signal muons is decreased by less than 4% with smearing of track transverse momenta up to ten times coarser than the current offline resolution.

Place, publisher, year, edition, pages
2013. , 35 p.
UPTEC F, ISSN 1401-5757 ; 13039
National Category
Accelerator Physics and Instrumentation Subatomic Physics
URN: urn:nbn:se:uu:diva-208691OAI: diva2:653958
Educational program
Master Programme in Engineering Physics
Available from: 2013-10-15 Created: 2013-10-07 Last updated: 2013-10-15Bibliographically approved

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MasterThesis_JGradin(3275 kB)129 downloads
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High Energy Physics
Accelerator Physics and InstrumentationSubatomic Physics

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