Exploring triplet-quadruplet fermionic dark matter at the LHC and future colliders

Wang, Jin-Wei (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China) (School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China) ; Bi, Xiao-Jun (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China) ; Xiang, Qian-Fei (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China) (School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China) ; Yin, Peng-Fei (Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China) ; Yu, Zhao-Huan (ARC Centre of Excellence for Particle Physics at the Terascale, School of Physics, The University of Melbourne, Victoria 3010, Australia) (School of Physics, Sun Yat-Sen University, Guangzhou 510275, China)

28 February 2018

Abstract: We study the signatures of the triplet-quadruplet dark matter model at the LHC and future colliders, including the 100 TeV Super Proton-Proton Collider and the 240 GeV Circular Electron Positron Collider. The dark sector in this model contains one fermionic electroweak triplet and two fermionic quadruplets, which have two kinds of Yukawa couplings to the Higgs doublet. Electroweak production signals of the dark sector fermions in the monojet+ET, disappearing track, and multilepton+ET channels at the LHC and the Super Proton-Proton Collider are investigated. Moreover, we study the loop effects of this model on the Circular Electron Positron Collider precision measurements of e+eZh and hγγ. We find that most of the parameter regions allowed by the observed dark matter relic density will be well explored by such direct and indirect searches at future colliders.


Published in: Phys. Rev. D 97 (2018)
Published by: APS
DOI: 10.1103/PhysRevD.97.035021
arXiv: 1711.05622
License: CC-BY-4.0



Back to search

Fulltext:
Download fulltextPDF Download fulltextXML