Comparison of neutralino and sneutrino dark matter in a model with spontaneous CP violation
arXiv:1209.6302 · doi:10.1007/JHEP11(2012)129
Abstract
Supersymmetric extensions to the standard model provide viable dark matter candidates, and can introduce additional charge-parity (CP) violation, needed for obtaining the observed baryon asymmetry of the universe. We study the possibilities of scalar and neutralino dark matter with spontaneous CP violation in the next-to-minimal supersymmetric standard model with a right handed neutrino. The observed relic density can be produced both by neutralino and right handed sneutrino as the lightest supersymmetric particle, but when CP is violated, the new annihilation channels lower the achieved relic density in general. We consider collider phenomenology in a number of benchmark points, in which all experimental constraints are satisfied, and either the neutralino or the right handed sneutrino contribute to the dark matter abundance.
v2: corrected spelling, edited for clarity, added description of experimental bound, added local report number
References in corpus (27)
- 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
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
- Three Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Polarization Analysis
- micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
- Search for Neutral MSSM Higgs Bosons at LEP
- Combined results of searches for the standard model Higgs boson in pp collisions at sqrt(s) = 7 TeV
- Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
- 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
- Hints of large tan(beta) in flavour physics
- Strong constraints on the rare decays Bs -> mu+ mu- and B0 -> mu+ mu-
- NMSPEC: A Fortran code for the sparticle and Higgs masses in the NMSSM with GUT scale boundary conditions
- CPsuperH2.0: an Improved Computational Tool for Higgs Phenomenology in the MSSM with Explicit CP Violation
- Full one-loop corrections to the relic density in the MSSM: A few examples
- The Supersymmetric Parameter Space in Light of B-physics Observables and Electroweak Precision Data
- Updated Constraints from B Physics on the MSSM and the NMSSM
- The 125 GeV Higgs in the NMSSM in light of LHC results and astrophysics constraints
- Right-Handed Sneutrino as Cold Dark Matter of the Universe
- Right-handed sneutrino dark matter in the NMSSM
- LanHEP - a package for automatic generation of Feynman rules from the Lagrangian. Updated version 3.1
- Light mixed sneutrinos as thermal dark matter
- A large Muon Electric Dipole Moment from Flavor?
- A possible connection between neutrino mass generation and the lightness of a NMSSM pseudoscalar
- Momentum reconstruction at the LHC for probing CP-violation in the stop sector
- Higgs and neutrino sector, EDM and epsilon_K in a spontaneously CP and R-parity breaking supersymmetric model
- Momentum asymmetries as CP violating observables
- Spontaneous CP and R parity breaking in supersymmetry
Cited by in corpus (7)
- Low-mass right-handed sneutrino dark matter: SuperCDMS and LUX constraints and the Galactic Centre gamma-ray excess
- Naturality vs perturbativity, physics, and LHC data in triplet extension of MSSM
- Higgs sector in NMSSM with right-handed neutrinos and spontaneous R-parity violation
- Dark matter candidates in the NMSSM with RH neutrino superfields
- Soft leptogenesis in the NMSSM with a singlet right-handed neutrino superfield
- Right-handed sneutrino and gravitino multicomponent dark matter in light of neutrino detectors
- Measuring neutrino dynamics in NMSSM with a right-handed sneutrino LSP at the ILC