English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Future large scale structure observations are expected to be sensitive tosmall neutrino masses, of the order of 0.05 eV or more. However, forecasts arebased on the assumption that by the time at which these datasets will beavailable, the non-linear spectrum in presence of neutrino mass will bepredicted with an accuracy at least equal to the neutrino mass effect itself,i.e. about 3%. Motivated by these considerations, we present the computation ofthe non-linear power spectrum of LambdaCDM models in the presence of massiveneutrinos using the Renormalization Group time-flow approach, which amounts toa resummation of perturbative corrections to the matter power spectrum to allorders. We compare our results with those obtained with other methods, i.e.linear theory, one-loop perturbation theory and N-body simulations and showthat the time-RG method improves the one-loop method in fitting the N-bodydata, especially in determining the suppression of the matter power spectrumwhen neutrino are massive with respect to the linear power spectrum.

Non-linear Power Spectrum including Massive Neutrinos: the Time-RG Flow Approach