Flux-mediated dark matter

Journal of High Energy Physics

Jiseon Song¹  Adriana G. Menkara¹  Yoo-Jin Kang¹  Hyun Min Lee¹ 

[1] Department of Physics, Chung-Ang University, 06974, Seoul, South Korea;

关键词: Beyond Standard Model;    Cosmology of Theories beyond the SM;    Global Symmetries;    Higgs Physics;   

DOI  :  10.1007/JHEP06(2021)013

来源: Springer

【 摘 要 】

We propose a new mechanism to communicate between fermion dark matter and the Standard Model (SM) only through the four-form flux. The four-form couplings are responsible for the relaxation of the Higgs mass to the correct value and the initial displacement of the reheating pseudo-scalar field from the minimum. We show that the simultaneous presence of the pseudo-scalar coupling to fermion dark matter and the flux-induced Higgs mixing gives rise to unsuppressed annihilations of dark matter into the SM particles at present, whereas the direct detection bounds from XENON1T can be avoided. We suggest exploring the interesting bulk parameter space of the model for which dark matter annihilates dominantly into a pair of singlet-like scalars with similar mass as for dark matter.

【 授权许可】

CC BY