Standalone vertex finding in the ATLAS muon spectrometer

Abstract

A dedicated reconstruction algorithm to find decay vertices in the ATLAS muon spectrometer is presented. The algorithm searches the region just upstream of or inside the muon spectrometer volume for multi-particle vertices that originate from the decay of particles with long decay paths. The performance of the algorithm is evaluated using both a sample of simulated Higgs boson events, in which the Higgs boson decays to long-lived neutral particles that in turn decay to bb final states, and pp collision data at sqrt(s) = 7 TeV collected with the ATLAS detector at the LHC during 2011.

22 pages plus author list (43 pages total), 21 figures, 1 table, submitted to JINST. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/PERF-2013-01/

References in corpus (8)

• Parton distributions for the LHC
• Echoes of a Hidden Valley at Hadron Colliders
• Performance of the ATLAS Trigger System in 2010
• Discovering the Higgs Through Highly-Displaced Vertices
• Parton Distributions for LHC
• Possible Effects of a Hidden Valley on Supersymmetric Phenomenology
• Search for a light Higgs boson decaying to long-lived weakly-interacting particles in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Triggers for displaced decays of long-lived neutral particles in the ATLAS detector

Cited by in corpus (11)

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• Search for long-lived particles produced in $pp$ collisions at $\sqrt{s}=13$ TeV that decay into displaced hadronic jets in the ATLAS muon spectrometer
• The Fate of Long-Lived Superparticles with Hadronic Decays after LHC Run 1
• The ATLAS Inner Detector Trigger performance in pp collisions at 13 TeV during LHC Run 2
• Search for long-lived neutral particles produced in $pp$ collisions at $\sqrt{s}=13$ TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer
• Data-driven Model-independent Searches for Long-lived Particles at the LHC
• Exploration at the high-energy frontier: ATLAS Run~2 searches investigating the exotic jungle beyond the Standard Model
• Long-lived Particles Anomaly Detection with Parametrized Quantum Circuits
• Search for events with one displaced vertex from long-lived neutral particles decaying into hadronic jets in the ATLAS muon spectrometer in $pp$ collisions at $\sqrt{s}=13$ TeV