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26 April 2024 |
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Development of a Highly Selective First-Level Muon Trigger for ATLAS at HL-LHC Exploiting Precision Muon Drift-Tube Data | | S. Abovyan
; V. Danielyan
; M. Fras
; P. Gadow
; O. Kortner
; S. Kortner
; H. Kroha
; F. Mueller
; S. Nowak
; R. Richter
; K. Schmidt-Sommerfeld
; | | Date: |
31 Jan 2017 | | Abstract: | The High-Luminosity LHC (HL-LHC) will provide the unique opportunity to
explore the nature of physics beyond the Standard Model of strong and
electroweak interactions. Highly selective first-level triggers are essential
for the physics programme of the ATLAS experiment at HL-LHC, where the
instantaneous luminosity will exceed the instantaneous LHC Run 1 luminosity by
about an order of magnitude. The ATLAS first-level muon trigger rate is
dominated by low momentum muons, which are accepted because of the moderate
momentum resolution of the RPC and TGC trigger chambers. This limitation can be
overcome by exploiting the data of the precision Muon Drift-Tube (MDT) chambers
in the first-level trigger decision. This requires continuous fast transfer of
the MDT hits to the off-detector trigger logic and fast track reconstruction
algorithms. The reduction of the muon trigger rate achievable with the proposed
new trigger concept, the performance of a novel fast track reconstruction
algorithm, and the first hardware demonstration of the scheme with muon
testbeam data taken at the CERN Gamma Irradiation Facility are discussed. | | Source: | arXiv, 1701.9150 | | Services: | Forum | Review | PDF | Favorites | |
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