Xin-Xin Qi

activity

20242026

collaborators

6 papers

hep-ph2026

Nonthermal Solar Stalling of an Inelastic Scalar Signal in Xenon

XinXin Qi, Hao Sun

The LUX-ZEPLIN experiment has reported one nuclear-recoil candidate at $248\kev$ in an extended-energy search. We construct an anomaly-free $U (1)_{B - 3 L_{τ}}$ model in which an $840\g…

hep-ph2026

Heavy fermionic dark matter in a secluded $Z_{4}$ framework

XinXin Qi, Hao Sun

We investigate heavy Majorana dark matter $χ$ in a secluded scalar sector with a spontaneously broken $Z_{4}$ symmetry. The symmetry forbids a bare Majorana mass, providing a dynamic…

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 $χ$ are introduced a…

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 $χ$ are introduced as dark matter candidates. We als…

hep-ph2024

Dark matter, leptogenesis and Z' in the B-L model

XinXin Qi, Hao Sun

We discuss the interplay between dark matter, leptogenesis and a new gauge boson $Z^{'}$ in the $B - L$ model. A fermion dark matter $χ$ carrying $U (1)_{B - L}$ charge is introduced…

Nonthermal Solar Stalling of an Inelastic Scalar Signal in Xenon

Heavy fermionic dark matter in a secluded Z4​ framework

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

Dark matter, leptogenesis and Z' in the B-L model

Heavy fermionic dark matter in a secluded $Z_{4}$ framework

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