The DArk Messenger Searches at an Accelerator Experiment, A Case of a Table-Top Scale Experiment at a Beam Dump

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Hauptverfasser: Proto-Collaboration, DAMSA, Yu, Jaehoon, Kim, Doojin, Yang, Un-Ki
Format: Preprint
Veröffentlicht: 2025
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author Proto-Collaboration, DAMSA
Yu, Jaehoon
Kim, Doojin
Yang, Un-Ki
author_facet Proto-Collaboration, DAMSA
Yu, Jaehoon
Kim, Doojin
Yang, Un-Ki
contents DAMSA (DArk Messenger Searches at an Accelerator) experiment is a table-top scale, extremely-short-baseline experiment designed to probe dark-sector particles (DSPs) that serve as portals between the visible sector and the hidden dark-matter sector. These particles, such as axion-like particles (ALPs), can decay into two photons or electron-positron pairs. DAMSA is specifically optimized to explore regions of parameter space that are inaccessible to past and current experiments, by operating at ultra-short baselines and employing high-resolution calorimetry, precision timing, and precision tracking in a magnetic field with suppression of beam-related neutron backgrounds. The experiment can be integrated into facilities, such as CERN's Beam-Dump-Facility (BDF), operating concurrently with the SHiP experiment, and provides complementary sensitivity in the MeV to GeV mass range. DAMSA represents a cost-effective and timely opportunity to expand CERN's discovery potential in dark-sector physics. It exemplifies how innovative, small-scale experiments can effectively complement large-scale experiments, taking advantage of existing and future infrastructure.
format Preprint
id arxiv_https___arxiv_org_abs_2504_02923
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The DArk Messenger Searches at an Accelerator Experiment, A Case of a Table-Top Scale Experiment at a Beam Dump
Proto-Collaboration, DAMSA
Yu, Jaehoon
Kim, Doojin
Yang, Un-Ki
High Energy Physics - Experiment
DAMSA (DArk Messenger Searches at an Accelerator) experiment is a table-top scale, extremely-short-baseline experiment designed to probe dark-sector particles (DSPs) that serve as portals between the visible sector and the hidden dark-matter sector. These particles, such as axion-like particles (ALPs), can decay into two photons or electron-positron pairs. DAMSA is specifically optimized to explore regions of parameter space that are inaccessible to past and current experiments, by operating at ultra-short baselines and employing high-resolution calorimetry, precision timing, and precision tracking in a magnetic field with suppression of beam-related neutron backgrounds. The experiment can be integrated into facilities, such as CERN's Beam-Dump-Facility (BDF), operating concurrently with the SHiP experiment, and provides complementary sensitivity in the MeV to GeV mass range. DAMSA represents a cost-effective and timely opportunity to expand CERN's discovery potential in dark-sector physics. It exemplifies how innovative, small-scale experiments can effectively complement large-scale experiments, taking advantage of existing and future infrastructure.
title The DArk Messenger Searches at an Accelerator Experiment, A Case of a Table-Top Scale Experiment at a Beam Dump
topic High Energy Physics - Experiment
url https://arxiv.org/abs/2504.02923