https://doi.org/10.1140/epjc/s10052-022-10796-x
Regular Article - Theoretical Physics
Production of primordial black holes via single field inflation and observational constraints
1
Centre for Cosmology and Science Popularization, SGT University, 122505, Gurugram, Haryana, India
2
Centre for Theoretical Physics, Jamia Millia Islamia, 110025, New Delhi, India
3
National Institute of Technology Rourkela, 769001, Odisha, India
4
Sardar Vallabhbhai National Institute of Technology Surat, 395007, Surat, Gujarat, India
a mayukh_ccsp@sgtuniversity.org, mayukhraj@jmi.ac.in
d yogesh_ccsp@sgtuniversity.org, yogesh@ctp-jamia.res.in
Received:
8
July
2022
Accepted:
10
September
2022
Published online:
29
September
2022
In a class of single field models of inflation, the idea of primordial black holes (PBHs) production is studied. In this case, the dynamics on small cosmological scales differs significantly from that of the large scales probed by the observations of cosmic microwave background (CMB). This difference becomes a virtue in producing correct physical ambiance for the seeds required to produce PBHs. Thus, once the perturbed scales re-enter the horizon of our Universe during the later epochs of radiation domination and subsequent matter domination, these seeds collapses to produce PBHs. We have shown, in this class of model, depending on the model parameters and the class defining set parameters, one can have PBHs formed for a vast mass ranges from 
to 
solar mass (
). We have also shown, for a particular class of model, the total dark matter density today can be attributed to the PBHs density. The vast range of the mass depending on the class parameter, gives ample opportunity to study enriched phenomenological implications associated with this model to probe the nascent Universe dynamics.
© The Author(s) 2022
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Funded by SCOAP3. SCOAP3 supports the goals of the International Year of Basic Sciences for Sustainable Development.
