Relic Densities of Dark Matter in the U(1)-Extended NMSSM and the Gauged Axion Supermultiplet

Abstract

We compute the dark matter relic densities of neutralinos and axions in a supersymmetric model with a gauged anomalous U(1) symmetry, kinetically mixed with $U(1{)}_Y$ of hypercharge. The model is a variant of the USSM (the U(1) extended NMSSM), containing an extra U(1) symmetry and an extra singlet in the superpotential respect to the MSSM, where gauge invariance is restored by Peccei-Quinn interactions using a Stuckelberg multiplet. This approach introduces an axion (Im b) and a saxion (Re b) in the spectrum and generates an axino component for the neutralino. The Stuckelberg axion (Im b) develops a physical component (the gauged axion) after electroweak symmetry breaking. We classify all the interactions of the Lagrangian and perform a complete simulation study of the spectrum, determining the neutralino relic densities using micrOMEGAs. We discuss the phenomenological implications of the model analyzing mass values for the axion from the milli-eV to the MeV region. The possible scenarios that we analyze are significantly constrained by a combination of WMAP data, the exclusion limits from direct axion searches and the veto on late entropy release at the time of nucleosynthesis.

43 pages, 11 figures. Revised final version, accepted for publication in Phys. Rev. D

References in corpus (20)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• FeynRules - Feynman rules made easy
• Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
• Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at sqrt(s) = 7 TeV with the ATLAS detector at the LHC
• Indirect search for dark matter with micrOMEGAs2.4
• Evidence for a new light spin-zero boson from cosmological gamma-ray propagation?
• Probing eV-scale axions with CAST
• Laser experiments explore the hidden sector
• Light from the Hidden Sector
• Search for dilepton resonances in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
• Search for Resonances in the Dilepton Mass Distribution in pp Collisions at sqrt(s) = 7 TeV
• Axion-Like Particles, Cosmic Magnetic Fields and Gamma-Ray Astrophysics
• Minimal Anomalous U(1)' Extension of the MSSM
• Stuckelberg Axions and the Effective Action of Anomalous Abelian Models 1. A unitarity analysis of the Higgs-axion mixing
• Stuckelberg Axions and the Effective Action of Anomalous Abelian Models 2. A SU(3)_C x SU(2)_W x U(1)_Y x U(1)_B model and its signature at the LHC
• Axionic symmetry gaugings in N=4 supergravities and their higher-dimensional origin
• Searching for Extra Z' from Strings and Other Models at the LHC with Leptoproduction
• Unitarity Bounds for Gauged Axionic Interactions and the Green-Schwarz Mechanism
• A Light Supersymmetric Axion in an Anomalous Abelian Extension of the Standard Model
• Axion and Neutralinos from Supersymmetric Extensions of the Standard Model with anomalous U(1)'s

Cited by in corpus (7)

• Dark matter in the supersymmetric radiative seesaw model with an anomalous U(1) symmetry
• Superconformal Sum Rules and the Spectral Density Flow of the Composite Dilaton (ADD) Multiplet in $\mathcal{N}=1$ Theories
• Dark Matter as Ultralight Axion-Like particle in $E_6\times U(1{)}_X$ GUT with QCD Axion
• Dark Matter in Anomalous $U(1{)}^{\prime }$ Models with neutral mixing
• An Axion-Like Particle from an $SO(10)$ Seesaw with $U(1{)}_X$
• Supersymmetry Breaking in a Minimal Anomalous Extension of the MSSM
• Studies on Conformal and Superconformal Extensions of the Standard Model with an Application to Gravity