Dark matter in Inert Doublet Model with one scalar singlet and \(U(1)_X\) gauge symmetry

• Published in: arXiv.org 2020-08
• Main Authors: Arroyo-Ureña, M A, Gaitan, R, Martinez, R, J H Montes de Oca Yemha
• Format: Article
• Language: English
• Subjects: Constraint modelling; Cross-sections; Dark matter; Density; Stability analysis; Symmetry
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.1907.08231

We study Dark Matter (DM) abundance in the framework of the extension of the Standard Model (SM) with an additional \(U(1)_X\) gauge symmetry. One complex singlet is included to break the \(U(1)_X\) gauge symmetry, meanwhile one of the doublets is considered inert to introduce a DM candidate. The stability of the DM candidate is analyzed with a continuous \(U(1)_X\) gauge symmetry as well as discrete \(Z_2\) symmetry. We find allowed regions for the free model parameters which are in agreement with the most up-to-date experimental results reported by CMS and ATLAS collaborations, the upper limit on WIMP-nucleon cross section imposed by XENON1T collaboration and the upper limit on the production cross-section of a \(Z^{\prime}\) gauge boson times the branching ratio of the \(Z^{\prime}\) boson decaying into \(\ell^-\ell^+\). We also obtain allowed regions for the DM candidate mass from the relic density reported by the PLANCK collaboration including light, intermediate and heavy masses; depending mainly on two parameters of the scalar potential, \(\lambda_{2x}\) and \(\lambda_{345}=\lambda_3+\lambda_4+2\lambda_5\). We find that trough \(pp\rightarrow \chi\chi \gamma\) production, it may only be possible for a future hadron-hadron Circular Collider (FCC-hh) to be able to detect a DM candidate within the range of masses 10-60 GeV.