Neutrino Masses, Scale-Dependent Growth, and Redshift-Space Distortions

TL;DR

This paper explores how massive neutrinos affect the scale-dependent growth of cosmic structures and assesses the survey requirements to detect this effect through redshift-space distortions.

Contribution

It introduces a method to analyze the scale dependence of growth caused by neutrino masses and evaluates survey parameters needed for detection.

Findings

Neutrino masses induce a measurable scale dependence in growth.

Fisher analysis identifies key survey specifications for detection.

Results guide future galaxy survey designs.

Abstract

Massive neutrinos leave a unique signature in the large scale clustering of matter. We investigate the wavenumber dependence of the growth factor arising from neutrino masses and use a Fisher analysis to determine the aspects of a galaxy survey needed to measure this scale dependence.