Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes
We discuss formation of dark matter (DM) mini-halos around primordial black holes (PBHs) and its implication on DM direct detection experiments, including axion searches. Motivated by LIGO observations, we consider fDM≃0.01 as the fraction of DM in PBHs with masses 10M⊙−70M⊙. In this case, we expect...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-08-01
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| Series: | Physics Letters B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320303701 |
| _version_ | 1818454517608349696 |
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| author | Mark P. Hertzberg Enrico D. Schiappacasse Tsutomu T. Yanagida |
| author_facet | Mark P. Hertzberg Enrico D. Schiappacasse Tsutomu T. Yanagida |
| author_sort | Mark P. Hertzberg |
| collection | DOAJ |
| description | We discuss formation of dark matter (DM) mini-halos around primordial black holes (PBHs) and its implication on DM direct detection experiments, including axion searches. Motivated by LIGO observations, we consider fDM≃0.01 as the fraction of DM in PBHs with masses 10M⊙−70M⊙. In this case, we expect the presence of dressed PBHs after Milky Way halo formation with mini-halo masses peaked around Mhalo∼(50−55)MPBH. We analyze the effect of tidal forces acting on dressed PBHs within the Milky Way galaxy. In the solar neighborhood, the mini-halos are resistant against tidal disruption from the mean-field potential of the galaxy and encounters with stars, but they undergo a small level of disruption caused by disk shocking. The presence of mini-halos around LIGO-motivated PBHs today could reduce by half the local dark matter background. High-resolution simulations are encouraged. If the proposed scenario is realized, chances of direct detection of DM would decrease. |
| first_indexed | 2024-12-14T21:56:08Z |
| format | Article |
| id | doaj.art-ce1965f7df034bdd94b17a0b4f7930cc |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-14T21:56:08Z |
| publishDate | 2020-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-ce1965f7df034bdd94b17a0b4f7930cc2022-12-21T22:46:07ZengElsevierPhysics Letters B0370-26932020-08-01807135566Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holesMark P. Hertzberg0Enrico D. Schiappacasse1Tsutomu T. Yanagida2Institute of Cosmology, Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USADepartment of Physics, P.O.Box 35 (YFL), FIN-40014 University of Jyväskylä, Finland; Helsinki Institute of Physics, P.O. Box 64, FIN-00014 University of Helsinki, Finland; Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, China; Corresponding author.Tsung-Dao Lee Institute & School of Physics and Astronomy, Shanghai Jiao Tong University, 200240 Shanghai, ChinaWe discuss formation of dark matter (DM) mini-halos around primordial black holes (PBHs) and its implication on DM direct detection experiments, including axion searches. Motivated by LIGO observations, we consider fDM≃0.01 as the fraction of DM in PBHs with masses 10M⊙−70M⊙. In this case, we expect the presence of dressed PBHs after Milky Way halo formation with mini-halo masses peaked around Mhalo∼(50−55)MPBH. We analyze the effect of tidal forces acting on dressed PBHs within the Milky Way galaxy. In the solar neighborhood, the mini-halos are resistant against tidal disruption from the mean-field potential of the galaxy and encounters with stars, but they undergo a small level of disruption caused by disk shocking. The presence of mini-halos around LIGO-motivated PBHs today could reduce by half the local dark matter background. High-resolution simulations are encouraged. If the proposed scenario is realized, chances of direct detection of DM would decrease.http://www.sciencedirect.com/science/article/pii/S0370269320303701Axion dark matterPrimordial black holesDark mini-halosDark matter direct detectionLIGO-Virgo collaboration |
| spellingShingle | Mark P. Hertzberg Enrico D. Schiappacasse Tsutomu T. Yanagida Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes Physics Letters B Axion dark matter Primordial black holes Dark mini-halos Dark matter direct detection LIGO-Virgo collaboration |
| title | Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes |
| title_full | Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes |
| title_fullStr | Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes |
| title_full_unstemmed | Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes |
| title_short | Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes |
| title_sort | implications for dark matter direct detection in the presence of ligo motivated primordial black holes |
| topic | Axion dark matter Primordial black holes Dark mini-halos Dark matter direct detection LIGO-Virgo collaboration |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320303701 |
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