Unveiling dark forces with measurements of the Large Scale Structure of the Universe

Abstract

Cosmology offers opportunities to test Dark Matter independently of its interactions with the Standard Model. We study the imprints of long-range forces acting solely in the dark sector on the distribution of galaxies, the so-called Large Scale Structure (LSS). We derive the strongest constraint on such forces from a combination of Planck and BOSS data. Along the way we consistently develop, for the first time, the Effective Field Theory of LSS in the presence of new dynamics in the dark sector. We forecast that future surveys will improve the current bound by an order of magnitude.

5+18 pages, 4 figures; v2: minor modifications, matches version published in PRL

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Cited by in corpus (13)

• Massive neutrinos and cosmic composition
• From 100 kpc to 10 Gpc: Dark Matter self-interactions before and after DESI
• New Interpretations of the Cosmological Preference for a Negative Neutrino Mass
• Disentangling modified gravity from a dark force with gravitational redshift
• Coherent Self-Interactions of Dark Matter in the Bullet Cluster
• One-loop power spectrum corrections in interacting dark energy cosmologies
• Probing Long-Range Forces Between Neutrinos with Cosmic Structures
• Comparing the motion of dark matter and standard model particles on cosmological scales
• Cosmological perturbation theory for large scale structure in phase space
• The Effective Field Theory of Large Scale Structure for Mixed Dark Matter Scenarios
• Reanalysing large-scale structure using an updated gamma-ray burst spatial density approach
• A semi-analytic estimate for the effective sound speed counterterm in the EFTofLSS
• Dark Matter Recoupling