ANUBIS: Proposal to search for long-lived neutral particles in CERN service shafts
Instrumentation and Detectors
2025-11-05 v3 High Energy Physics - Experiment
Abstract
Long-lived particles are predicted by many extensions of the Standard Model and have been gaining interest in recent years. In this Letter we present a competitive proposal that substantially extends the sensitivity in lifetime by instrumenting the existing service shafts above the ATLAS or CMS experiments with tracking stations. For scenarios with electrically neutral long-lived particles with ~GeV, the lifetime reach is increased by 2-3 orders of magnitude compared to currently operating and approved future experiments at the LHC. A detector design proposal is outlined along with projected costs.
Cite
@article{arxiv.1909.13022,
title = {ANUBIS: Proposal to search for long-lived neutral particles in CERN service shafts},
author = {Martin Bauer and Oleg Brandt and Lawrence Lee and Christian Ohm},
journal= {arXiv preprint arXiv:1909.13022},
year = {2025}
}
Comments
v3 has been revised in accordance with more advanced studies from arXiv:2510.26932