Volume 485 - The European Physical Society Conference on High Energy Physics (EPS-HEP2025) - T02 Dark Matter
ANUBIS: Projected Sensitivities and Initial Results from the proANUBIS demonstrator with Run 3 LHC data
T. Reymermier*, O. Brandt, A. Mullin, P. Swallow, M. Revering, C. Fernandez Ruiz  on behalf of the ANUBIS collaboration
*: corresponding author
Full text: pdf
Pre-published on: December 10, 2025
Published on: —
Abstract
Despite the success of the Standard Model (SM) there remains behaviour it cannot describe, in particular the presence of non-interacting Dark Matter. Many models that describe dark matter
can generically introduce exotic Long-Lived Particles (LLPs). The proposed ANUBIS experiment is designed to search for these LLPs within the ATLAS detector cavern, located approximately
20-30 m from the Interaction Point (IP). A prototype detector, proANUBIS, has taken data within the ATLAS detector cavern since 2024, corresponding to 104 $fb^{-1}$ of pp data. We report on
the potential sensitivity of ANUBIS to a selection of LLP models, i.e. Higgs Portal and Heavy Neutral Leptons, as well as future planned studies. Additionally, we will show the first results of
the proANUBIS demonstrator, and how it will be used to study the expected backgrounds for the
ANUBIS detector.
DOI: https://doi.org/10.22323/1.485.0131
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