Calibration and performance of proANUBIS: A proof-of-concept detector for the ANUBIS experiment
Abstract
Long-lived particles with lifetimes τ > 10 ps are predicted by many extensions of the Standard Model with viable dark matter candidates. The ANUBIS experiment proposes to extend the experimental sensitivity to long-lived particles by instrumenting the ceiling of the ATLAS cavern with Resistive Plate Chamber detectors in order to reconstruct vertices from long-lived particle decays in the air-filled volume above the ATLAS detector. The pro ANUBIS detector has been installed in the ATLAS cavern to validate the detector technology planned for ANUBIS and to take in-situ measurements of muon and hadron fluxes inside the ATLAS cavern using p p collision data from the LHC. In this paper, the data collected, reconstruction techniques used, and performance of the pro ANUBIS detector are discussed. The detection efficiency and timing resolution are found to be consistent with expectations and to meet the performance requirements of ANUBIS.
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Authors: Giulio Aielli, Oleg Brandt, Jude Burling, P. Collins, Jonas Dej, C A Escobar Ruiz, Christopher Lester, Kaijia Liu, L. Pizzimento, Ludovico Pontecorvo, Théo Reymermier, Michael Revering, Aashaq Shah, Tom Spencer, Paul Swallow, Julian Friedrich Wack, Yanglin Wan
Institutions: University of Hong Kong, University of Edinburgh, University of Cambridge, European Organization for Nuclear Research, Glasgow Caledonian University, Institute of Nuclear Physics of Lyon, Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata