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/

Zendy Plus

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

Zendy Tools

Zendy Open

I suggest an effective model between the GUT and the electroweak scale. Itonly introduces the two symmetries of $U(1)_{B-L}$ and $U(1)_{D}$ besides theSM groups. The two symmetries are individually broken at the reheatingtemperature of the universe of $10^{12}$ GeV and the scale of $3\sim 4$ TeV.The model can simultaneously accommodate the tiny neutrino masses, thematter-antimatter asymmetry and the cold dark matter (CDM). In particular, themodel gives some interesting results and predictions, for instance, theneutrinos are Dirac nature and their masses are related to the $U(1)_{D}$breaking, the size of the matter-antimatter asymmetry is closely related to themass hierarchy of the quarks and charged leptons, the CDM mass is probably inthe range of $250\sim 350$ GeV. Finally, it is feasible to test the model infuture collider experiments.

A Model of the Matter-antimatter Asymmetry and Cold Dark Matter with $U(1)_{B-L}\otimes U(1)_{D}$