XinXin Qi

activity

20242026

collaborators

5 papers

hep-ph2026

Heavy singlet fermionic dark matter with $Z_{4}$ symmetry

XinXin Qi, Hao Sun

We revisited the singlet fermionic dark matter model in this work, where a Majorana fermion $I ¨ $ carrying $Z_{4}$ charge is assumed as the DM candidate. A new singlet scalar $S_{0}$ wi…

hep-ph2026

FIMPs in a two-component dark matter model with $Z_{2} \times Z_{4}$ symmetry

XinXin Qi, Hao Sun

We investigate the FIMP-FIMP regime in a two-component dark matter model with a $Z_{2} \times Z_{4}$ symmetry, where a singlet scalar $S$ and a Majorana fermion $χ$ serve as the dark ma…

hep-ph2025

Mixed WIMP-FIMP scenario in a two-component dark matter model

XinXin Qi, Hao Sun

We consider the mixed WIMP-FIMP scenario in a two-component dark matter model with $Z_{2} \times Z_{4}$ symmetry, where a singlet scalar $S$ and a Majarano fermion $I ¨ $ are introduced…

hep-ph2025

A two-component dark matter model with $Z_{2} \times Z_{4}$ symmetry

XinXin Qi, Hao Sun

We consider a two-component dark matter model with $Z_{2} \times Z_{4}$ symmetry, where a singlet scalar $S$ and a Majorana fermion $I ¨ $ are introduced as dark matter candidates. We al…

hep-ph2024

Z_5 two-component dark matter in the Type-II seesaw mechanism

XinXin Qi, Hao Sun

We consider the Z5 two-component dark matter model within the framework of the Type-II seesaw mechanism. Due to the new annihilation processes related to triplets, the light compon…

Heavy singlet fermionic dark matter with Z4​ symmetry

FIMPs in a two-component dark matter model with Z2​×Z4​ symmetry

Mixed WIMP-FIMP scenario in a two-component dark matter model

A two-component dark matter model with Z2​×Z4​ symmetry

Z_5 two-component dark matter in the Type-II seesaw mechanism

Heavy singlet fermionic dark matter with $Z_{4}$ symmetry

FIMPs in a two-component dark matter model with $Z_{2} \times Z_{4}$ symmetry

A two-component dark matter model with $Z_{2} \times Z_{4}$ symmetry