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Probing the Inflaton Potential with SKA
by Tanmoy Modak, Tilman Plehn, Lennart Röver, Björn Malte Schäfer
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Submission summary
| Authors (as registered SciPost users): | Tanmoy Modak · Tilman Plehn · Lennart Röver |
| Submission information | |
|---|---|
| Preprint Link: | scipost_202201_00008v2 (pdf) |
| Date accepted: | June 10, 2022 |
| Date submitted: | May 3, 2022, 2:27 p.m. |
| Submitted by: | Röver, Lennart |
| Submitted to: | SciPost Physics |
| Ontological classification | |
|---|---|
| Academic field: | Physics |
| Specialties: |
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| Approach: | Phenomenological |
Abstract
SKA will be a major step forward not only in astrophysics, but also in precision cosmology. We show how the neutral hydrogen intensity map can be combined with the Planck measurements of the CMB power spectrum, to provide a precision test of the inflaton potential. For a conservative range of redshifts we find that SKA can significantly improve current constraints on the Hubble slow-roll parameters.
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Published as SciPost Phys. Core 5, 037 (2022)