Upgrade of the ATLAS Muon Trigger for the SLHC
J\"org Dubbert, Sandra Horvat, Oliver Kortner, Hubert Kroha, Robert, Richter

TL;DR
This paper discusses upgrading the ATLAS muon trigger system for the SLHC to improve high-momentum muon detection and maintain trigger rate efficiency amidst increased luminosity.
Contribution
It introduces a method to use MDT chamber data to enhance muon trigger selectivity at higher luminosities, addressing current spatial resolution limitations.
Findings
Enhanced trigger selectivity for muons above 20 GeV/c
Potential increase in trigger latency discussed
Method suitable for SLHC luminosity conditions
Abstract
The outer shell of the ATLAS experiment at the LHC consists of a system of toroidal air-core magnets in order to allow for the precise measurement of the transverse momentum p of muons, which in many physics channels are a signature of interesting physics processes. For the precise determination of the muon momentum Monitored Drift Tube chambers (MDT) with high position accuracy are used, while for the fast identification of muon tracks chambers with high time resolution are used, able to select muons above a predefined p threshold for use in the first Level of the ATLAS triggering system (Level-1 trigger). When the luminosity of the LHC will be upgraded to 4-5 times the present nominal value (SLHC) in about a decade from now, an improvement of the selectivity of the ATLAS Level-1 triggering system will be mandatory in order to cope with the maximum allowed trigger rate of 100…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
