The LISA forecast on a smooth crossover beyond the Standard Model through the scalar-induced gravitational waves
arxiv(2024)
Abstract
Supposing the Laser Interferometer Space Antenna (LISA) gravitational wave
(GW) detector, we exhibit the detectability of a hypothetical smooth crossover
in the early universe beyond the Standard Model of particle physics through the
scalar-induced gravitational wave (SIGW) in terms of the Fisher forecast. A
crossover at ∼100 TeV can leave a signal on the GW spectrum in
the ∼mHz frequency range, the sweet spot of the LISA sensitivity.
These possibilities are also interesting in the primordial black hole (PBH)
context as the associated PBH mass ∼10^22 g lies at the window
to explain the whole dark matter. We found that the properties of the crossover
can be well determined if the power spectrum of primordial scalar perturbations
are as large as ∼5×10^-4 on the corresponding scale
∼10^12 Mpc^-1.
MoreTranslated text
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined