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

We consider right-handed neutrino dark matter $N_1$ in local$U(1)_{L_\mu-L_\tau}$-extended Ma model. With the light $U(1)_{\mu-\tau}$ gaugeboson ($m_{Z'} \sim {\cal O}(100)$ MeV) and small $U(1)_{\mu-\tau}$ gaugecoupling ($g_{Z'}\sim 10^{-4}-10^{-3}$) which can accommodate the muon $(g-2)$anomaly and is still allowed by other experimental constraints, we show that wecan get correct relic density of dark matter for wide range of dark matter mass($M_1 \sim 10-100$ GeV), although the gauge coupling constant $g_{Z'}$ issmall. This is due to the fact that the annihilation cross section of darkmatter pair is enhanced by $M_1^4/m_{Z'}^4$ in the processes $N_1 N_1 \to Z'Z'$ or $N_1 N_1 \to Z' H_2$. We also consider the constraints from directdetection, collider searches.

Dark matter and muon $(g-2)$ in local $U(1)_{L_\mu-L_\tau}$-extended Ma Model