Primordial black holes are produced in a minimal UV extension to the Higgs inflation with an included R2 term. We show that for parameters consistent with Standard Model measurements and Planck observation results lead to MPBH ∈ (10−16, 10−15)M☉ primordial black holes with significant abundance, which may consist the majority of dark matter.
Bibliographical noteFunding Information:
We thank Fedor Bezrukov, Kohei Kamada, Kazunori Kohri, Shi Pi, Misao Sasaki, and Jinsu Kim for helpful discussions on the possibility and computation of this setup. This work was supported by the National Research Foundation grants funded by the Korean government (MSIP) (NRF-2018R1A4A1025334)&(NRF-2019R1A2C1089334) (SCP) and (NRF-2020R1A6A3A13076216) (SML). SML was supported in part by the Hyundai Motor Chung Mong-Koo Foundation.
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All Science Journal Classification (ASJC) codes
- Astronomy and Astrophysics