ANUBIS: Projected Sensitivities and Initial Results from the proANUBIS demonstrator with Run 3 LHC data

Fuente: arXiv
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Main Authors: Reymermier, Théo, Brandt, Oleg, Mullin, Anna, Swallow, Paul, Revering, Michael, Ruiz, Cayetano Fernandez
Format: Preprint
Published: 2025
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author Reymermier, Théo
Brandt, Oleg
Mullin, Anna
Swallow, Paul
Revering, Michael
Ruiz, Cayetano Fernandez
author_facet Reymermier, Théo
Brandt, Oleg
Mullin, Anna
Swallow, Paul
Revering, Michael
Ruiz, Cayetano Fernandez
contents 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.
format Preprint
id arxiv_https___arxiv_org_abs_2512_14942
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle ANUBIS: Projected Sensitivities and Initial Results from the proANUBIS demonstrator with Run 3 LHC data
Reymermier, Théo
Brandt, Oleg
Mullin, Anna
Swallow, Paul
Revering, Michael
Ruiz, Cayetano Fernandez
High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
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.
title ANUBIS: Projected Sensitivities and Initial Results from the proANUBIS demonstrator with Run 3 LHC data
topic High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
url https://arxiv.org/abs/2512.14942