A1 Journal article (refereed)
Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes (2020)


Hertzberg, M. P., Schiappacasse, E. D., & Yanagida, T. T. (2020). Implications for dark matter direct detection in the presence of LIGO-motivated primordial black holes. Physics Letters B, 807, Article 135566. https://doi.org/10.1016/j.physletb.2020.135566


JYU authors or editors


Publication details

All authors or editorsHertzberg, Mark P.; Schiappacasse, Enrico D.; Yanagida, Tsutomu T.

Journal or seriesPhysics Letters B

ISSN0370-2693

eISSN1873-2445

Publication year2020

Volume807

Article number135566

PublisherElsevier

Publication countryNetherlands

Publication languageEnglish

DOIhttps://doi.org/10.1016/j.physletb.2020.135566

Publication open accessOpenly available

Publication channel open accessOpen Access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/71277

Publication is parallel publishedhttps://arxiv.org/abs/1910.10575


Abstract

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.


Keywordscosmologydark matterblack holes

Free keywordsaxion dark matter; primordial black holes; dark mini-halos; dark matter direct detection; LIGO-Virgo collaboration


Contributing organizations


Ministry reportingYes

Reporting Year2020

JUFO rating2


Last updated on 2024-25-03 at 14:01