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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We extend previous studies of big bang nucleosynthesis, with the assumptionthat ordinary matter and dark matter sectors are entangled through the numberof degrees of freedom entering the Friedmann equations. This conjecture allowsus to find a relation between the temperatures of the weakly interacting matterand dark-matter sectors. The constraints imposed by observations are studied bycomparison with calculations of big bang nucleosynthesis for the abundance oflight elements. It is found that these constraints are compatible with colddark matter and a wide range number of dark sectors.

Big-bang nucleosynthesis constraints on dark-matter sectors revisited