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

Earlier studies of the influence of Dark Matter keV sterile neutrinos onneutrino-less double beta decay concluded that there is no significantmodification of the decay rate. These studies have focused only on a mass ofthe keV sterile neutrino above 2 and 4 keV, respectively, as motivated bycertain production mechanisms. On the other hand, alternative productionmechanisms have been proposed, which relax the lower limit for the mass, andnew experimental data are available, too. For this reason, an updated study istimely and worthwhile. We focus on the most recent data, i.e., the newestChandra and XMM-Newton observational bounds on the X-ray line originating fromradiative keV sterile neutrino decay, as well as the new measurement of thepreviously unknown leptonic mixing angle $\theta_{13}$. While the previousworks might have been a little short-sighted, the new observational bounds doindeed render any influences of keV sterile neutrinos on neutrino-less doublebeta decay small. This conclusion even holds in case not all the Dark Matter ismade up of keV sterile neutrinos.

Influence of a keV sterile neutrino on neutrino-less double beta decay -- how things changed in the recent years