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Author  |
de Montigny, M.; Ouimet, P.P.A.; Pinfold, J.; Shaa, A.; Staelens, M. |
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Title |
Minicharged particles at accelerators: progress and prospects |
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Journal Article |
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Year |
2026 |
Publication |
European Physical Journal-Special Topics |
Abbreviated Journal |
Eur. Phys. J.-Spec. Top. |
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Pages |
17pp |
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Abstract |
Minicharged particles (mCPs), hypothetical free particles with effective electric charges muchsmaller than the elementary charge,e, offer a valuable probe of dark sectors and fundamental physicsthrough several clear experimental signatures. Various models of physics beyond the Standard Modelpredict such particles, the existence of which could help elucidate the ongoing mysteries regarding electriccharge quantization and the nature of dark matter. Moreover, a hypothetical scenario involving a smallminicharged subcomponent of dark matter has recently been demonstrated as a viable explanation ofthe anomaly in the 21 cm hydrogen absorption signal reported by the EDGES collaboration. Althoughseveral decades of indirect observations and direct experimental searches for mCPs at particle acceleratorshave led to severe constraints, a substantial window of the mCP mass-mixing parameter space remainsunexplored at the energy frontier accessible to current state-of-the-art accelerators, such as the LargeHadron Collider (LHC). Consequently, mCPs have remained topical over the years, and new experimentalsearches at accelerators have been gaining interest. In this article, we review the theoretical frameworks inwhich mCPs emerge and their phenomenological implications, the current direct and indirect constraintson mCPs, and the present state of the ongoing and upcoming searches for mCPs at particle accelerators. |
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Address |
[de Montigny, Marc] Univ Alberta, Fac St Jean, 8406 Rue Marie Anne Gaboury, Edmonton, AB T6C 4G9, Canada, Email: michael.anthony.staelens@cern.ch |
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Publisher |
Springer Heidelberg |
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Language |
English |
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ISSN |
1951-6355 |
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Notes |
WOS:001761239400001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
7230 |
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