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Probing the Inflaton Potential with SKA

by Tanmoy Modak, Tilman Plehn, Lennart Röver, Björn Malte Schäfer

Submission summary

As Contributors: Lennart Röver
Preprint link: scipost_202201_00008v1
Date submitted: 2022-01-12 14:02
Submitted by: Röver, Lennart
Submitted to: SciPost Physics
Academic field: Physics
Specialties:
  • Gravitation, Cosmology and Astroparticle Physics
  • High-Energy Physics - Phenomenology
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.

Current status:
Editor-in-charge assigned


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Submission scipost_202201_00008v1 on 12 January 2022

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