Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission
For more than 20 years, the Compton telescope had provided the best measurements of the Galactic diffuse MeV spectrum. Recently, our analysis of 16 years of data from the SPectrometer on INTEGRAL (SPI) measured this emission with a higher signal-to-noise ratio. At MeV energies, the dominant contribu...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2023-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2023/06/epjconf_ricap2022_07003.pdf |
| _version_ | 1797866524017426432 |
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| author | Berteaud Joanna Francesca Calore Iguaz Joaquim Serpico Pasquale Dario Siegert Thomas |
| author_facet | Berteaud Joanna Francesca Calore Iguaz Joaquim Serpico Pasquale Dario Siegert Thomas |
| author_sort | Berteaud Joanna |
| collection | DOAJ |
| description | For more than 20 years, the Compton telescope had provided the best measurements of the Galactic diffuse MeV spectrum. Recently, our analysis of 16 years of data from the SPectrometer on INTEGRAL (SPI) measured this emission with a higher signal-to-noise ratio. At MeV energies, the dominant contribution to the diffuse emission comes from inverse Compton scattering. Nonetheless, sub-dominant emission from Primordial Black Hole (PBH) Dark Matter (DM) can be searched for in these data. Hypothetically formed from the collapse of over-densities before Big Bang nucleosynthesis, PBHs are interesting candidates for DM in the ΛCDM model of cosmology. PBHs of masses between 1016 and 1018 g, in the so-called asteroid mass range, are currently unconstrained and can saturate the DM cosmological abundance. MeV emission from PBH in this mass range is expected to come from PBH evaporation. We searched for the PBH signal with 16 years of SPI data, and demonstrated that PBHs cannot account for all the DM if their mass is smaller than 4 × 1017 g. |
| first_indexed | 2024-04-09T23:25:29Z |
| format | Article |
| id | doaj.art-b97e344ee83e4725b92cfb355af4c739 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-04-09T23:25:29Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-b97e344ee83e4725b92cfb355af4c7392023-03-21T10:32:53ZengEDP SciencesEPJ Web of Conferences2100-014X2023-01-012800700310.1051/epjconf/202328007003epjconf_ricap2022_07003Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emissionBerteaud Joanna0Francesca Calore1Iguaz Joaquim2Serpico Pasquale Dario3Siegert Thomas4LAPTh, CNRS, USMBLAPTh, CNRS, USMBLAPTh, CNRS, USMBLAPTh, CNRS, USMBInstitut für Theoretische Physik und Astrophysik, Universität WürzburgFor more than 20 years, the Compton telescope had provided the best measurements of the Galactic diffuse MeV spectrum. Recently, our analysis of 16 years of data from the SPectrometer on INTEGRAL (SPI) measured this emission with a higher signal-to-noise ratio. At MeV energies, the dominant contribution to the diffuse emission comes from inverse Compton scattering. Nonetheless, sub-dominant emission from Primordial Black Hole (PBH) Dark Matter (DM) can be searched for in these data. Hypothetically formed from the collapse of over-densities before Big Bang nucleosynthesis, PBHs are interesting candidates for DM in the ΛCDM model of cosmology. PBHs of masses between 1016 and 1018 g, in the so-called asteroid mass range, are currently unconstrained and can saturate the DM cosmological abundance. MeV emission from PBH in this mass range is expected to come from PBH evaporation. We searched for the PBH signal with 16 years of SPI data, and demonstrated that PBHs cannot account for all the DM if their mass is smaller than 4 × 1017 g.https://www.epj-conferences.org/articles/epjconf/pdf/2023/06/epjconf_ricap2022_07003.pdf |
| spellingShingle | Berteaud Joanna Francesca Calore Iguaz Joaquim Serpico Pasquale Dario Siegert Thomas Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission EPJ Web of Conferences |
| title | Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission |
| title_full | Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission |
| title_fullStr | Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission |
| title_full_unstemmed | Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission |
| title_short | Primordial Black Holes as dark matter candidates: Constraints from the diffuse MeV emission |
| title_sort | primordial black holes as dark matter candidates constraints from the diffuse mev emission |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2023/06/epjconf_ricap2022_07003.pdf |
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