https://doi.org/10.1140/epjs/s11734-025-01888-2
Regular Article
Minicharged particle sensitivity of the MAPP Outrigger Detector
1
Helsinki Institute of Physics, University of Helsinki, Gustaf Hällströmin katu 2, 00014, Helsinki, Finland
2
Instituto de Física Corpuscular, CSIC–Universitat de València, Catedrático José Beltrán, 2, 46980, Paterna, Spain
3
Faculté Saint-Jean, University of Alberta, 8406 Rue Marie-Anne Gaboury, T6C 4G9, Edmonton, AB, Canada
4
Department of Physics, University of Alberta, 11335 Saskatchewan Drive NW, T6G 2E1, Edmonton, AB, Canada
5
Department of Physics, University of Regina, 3737 Wascana Parkway, S4S 0A2, Regina, SK, Canada
a
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Received:
6
August
2025
Accepted:
23
August
2025
Published online:
19
September
2025
Abstract
We present a detailed study of the projected background-free sensitivity of the MAPP Outrigger Detector (OD) to minicharged particles (mCPs) at the High-Luminosity Large Hadron Collider (HL-LHC). As the first upgrade to the MAPP Experiment, the MAPP OD is a standalone detector designed to offer enhanced sensitivity to high-mass mCPs with intermediate effective charges. The MAPP OD is planned for installation in a duct adjacent to the MAPP-1 detector, located between the LHC’s UA83 gallery and the beamline. Considering mCP production via the Drell–Yan mechanism and various meson decays, the results show that, at the 95% confidence level, the MAPP OD can extend the experiment’s upper mass reach to mCP masses of approximately 200 GeV at the HL-LHC.
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© The Author(s), under exclusive licence to EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2025
Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
