Connecting between inflation and dark matter in models with gauged Z3 symmetry

Journal of High Energy Physics

Soo-Min Choi¹  Hyun Min Lee¹  Bin Zhu²  Jinsu Kim³ 

[1] Department of Physics, Chung-Ang University, 06974, Seoul, Korea;CERN, Theory department, 1211, Geneva 23, Switzerland;Department of Physics, Chung-Ang University, 06974, Seoul, Korea;School of Physics, Yantai University, 264005, Yantai, China;Institute for Theoretical Physics, Georg-August University Göttingen, Friedrich-Hund-Platz 1, D-37077, Göttingen, Germany;

关键词: Beyond Standard Model;    Cosmology of Theories beyond the SM;    Discrete Symmetries;    Renormalization Group;   

DOI  :  10.1007/JHEP06(2020)135

来源: Springer

【 摘 要 】

We investigate the possibility of unifying the inflation and dark matter physics in the minimal model for a complex scalar dark matter with gauged Z3 symmetry. The dark local U(1) symmetry is broken spontaneously into the Z3 symmetry by the dark Higgs mechanism. As compared to dark matter models with Z2 parity, the dark matter cubic self-interaction restricts the inflation with non-minimal couplings to take place beyond the pure dark matter direction and plays an important role in the loop corrections for the inflationary predictions as well as determining the correct dark matter relic density. Considering either of 2 → 2, 3 → 2 or forbidden channels to be a dominant production mechanism for dark matter, we show the viable parameter space of the model that is consistent with the theoretical and phenomenological constraints combined from inflation and dark matter.

【 授权许可】

Unknown