Z′-mediated dark matter freeze-in at stronger coupling
We study freeze-in production of fermionic dark matter mediated by a Z′ gauge boson. In particular, we explore the regime of Boltzmann-suppressed production, when the Standard Model (SM) thermal bath temperature never exceeds the dark matter mass. The corresponding gauge coupling is then required to...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-02-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325000280 |
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| _version_ | 1823861169295720448 |
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| author | Giorgio Arcadi David Cabo-Almeida Oleg Lebedev |
| author_facet | Giorgio Arcadi David Cabo-Almeida Oleg Lebedev |
| author_sort | Giorgio Arcadi |
| collection | DOAJ |
| description | We study freeze-in production of fermionic dark matter mediated by a Z′ gauge boson. In particular, we explore the regime of Boltzmann-suppressed production, when the Standard Model (SM) thermal bath temperature never exceeds the dark matter mass. The corresponding gauge coupling is then required to be significant, up to order one. As a result, this class of freeze-in models can be probed by the current and future direct dark matter detection experiments. |
| format | Article |
| id | doaj-art-3428481c90f442aab511e365a7e4b92c |
| institution | Kabale University |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-3428481c90f442aab511e365a7e4b92c2025-02-10T04:33:57ZengElsevierPhysics Letters B0370-26932025-02-01861139268Z′-mediated dark matter freeze-in at stronger couplingGiorgio Arcadi0David Cabo-Almeida1Oleg Lebedev2Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Universita degli Studi di Messina, Viale Ferdinando Stagno d'Alcontres 31, Messina, I-98166, Sicily, Italy; INFN Sezione di Catania, Via Santa Sofia 64, Catania, I-95123, Sicily, ItalyDipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, Universita degli Studi di Messina, Viale Ferdinando Stagno d'Alcontres 31, Messina, I-98166, Sicily, Italy; INFN Sezione di Catania, Via Santa Sofia 64, Catania, I-95123, Sicily, Italy; Departament de Física Quàntica i Astrofísica, Universitat de Barcelona, Martí i Franquès 1, Barcelona, E08028, Catalunya, Spain; Institut de Ciències del Cosmos (ICCUB), Universitat de Barcelona, Martí i Franquès 1, Barcelona, E08028, Catalunya, Spain; Corresponding author.Department of Physics and Helsinki Institute of Physics, Gustaf Hällströmin katu 2a, Helsinki, FI-00014, FinlandWe study freeze-in production of fermionic dark matter mediated by a Z′ gauge boson. In particular, we explore the regime of Boltzmann-suppressed production, when the Standard Model (SM) thermal bath temperature never exceeds the dark matter mass. The corresponding gauge coupling is then required to be significant, up to order one. As a result, this class of freeze-in models can be probed by the current and future direct dark matter detection experiments.http://www.sciencedirect.com/science/article/pii/S0370269325000280 |
| spellingShingle | Giorgio Arcadi David Cabo-Almeida Oleg Lebedev Z′-mediated dark matter freeze-in at stronger coupling Physics Letters B |
| title | Z′-mediated dark matter freeze-in at stronger coupling |
| title_full | Z′-mediated dark matter freeze-in at stronger coupling |
| title_fullStr | Z′-mediated dark matter freeze-in at stronger coupling |
| title_full_unstemmed | Z′-mediated dark matter freeze-in at stronger coupling |
| title_short | Z′-mediated dark matter freeze-in at stronger coupling |
| title_sort | z mediated dark matter freeze in at stronger coupling |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325000280 |
| work_keys_str_mv | AT giorgioarcadi zmediateddarkmatterfreezeinatstrongercoupling AT davidcaboalmeida zmediateddarkmatterfreezeinatstrongercoupling AT oleglebedev zmediateddarkmatterfreezeinatstrongercoupling |