Study the Higgs mass with the effective potential and Higgs decays in the $U(1{)}_X$SSM

Abstract

As the U(1) extension of the minimal supersymmetric standard model, the $U(1{)}_X$SSM has new super fields such as right-handed neutrinos and three Higgs singlets. In the $U(1{)}_X$SSM, the lightest CP-even Higgs mass $m_{h^0}$ is researched through the Higgs effective potential with one loop corrections. We also calculate the Higgs decays $h^0\to \gamma \gamma$, $h^0\to VV(V=W,Z)$, $h^0\to l\bar{l}Z$ and $h^0\to \nu \bar{\nu }Z$. The obtained results are reasonable, which are in favour of the study of the Higgs characteristic and the phenomenology of the $U(1{)}_X$SSM.

19 pages, 11 figures

References in corpus (7)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Indication of Electron Neutrino Appearance from an Accelerator-produced Off-axis Muon Neutrino Beam
• The Minimal Set of Electroweak Precision Parameters
• Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state
• Pseudoscalar Higgs Bosons at the LHC: Production and Decays into Electroweak Gauge Bosons Revisited
• Measurement of the H to ZZ branching fraction at 350 GeV and 3 TeV CLIC