Phenomenology of the nMSSM from colliders to cosmology

Abstract

Low energy supersymmetric models provide a solution to the hierarchy problem and also have the necessary ingredients to solve two of the most outstanding issues in cosmology: the origin of dark matter and baryonic matter. One of the most attractive features of this framework is that the relevant physical processes are related to interactions at the weak scale and therefore may be tested in collider experiments in the near future. This is true for the Minimal Supersymmetric Standard Model (MSSM) as well as for its extension with the addition of one singlet chiral superfield, the so-called nMSSM. It has been recently shown that within the nMSSM an elegant solution to both the problem of baryogenesis and dark matter may be found, that relies mostly on the mixing of the singlet sector with the Higgs sector of the theory. In this work we review the nMSSM model constraints from cosmology and present the associated collider phenomenology at the LHC and the ILC. We show that the ILC will efficiently probe the neutralino, chargino and Higgs sectors, allowing to confront cosmological observations with computations based on collider measurements. We also investigate the prospects for a direct detection of dark matter and the constraints imposed by the current bounds of the electron electric dipole moment in this model.

44 pp, 10 figures; Fig.9 replaced; discussion on CP violation extended and references added; few minor additions in text about details of the cuts

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Cited by in corpus (28)

• Singlet Higgs Phenomenology and the Electroweak Phase Transition
• Complex Singlet Extension of the Standard Model
• Model-Independent Jets plus Missing Energy Searches
• Higgs Self-Coupling as a Probe of Electroweak Phase Transition
• Production of Gravitational Waves in the nMSSM
• Electroweak phase transition, critical bubbles and sphaleron decoupling condition in the MSSM
• Revisiting the SUSY mu problem and its solutions in the LHC era
• Spin Dependence of Dark Matter Scattering
• Triplet Extended Supersymmetric Standard Model
• Discriminating dark matter candidates using direct detection
• On the origin of matter in the Universe
• Precision measurements, dark matter direct detection and LHC Higgs searches in a constrained NMSSM
• Electroweak baryogenesis in the Z3-invariant NMSSM
• SUSY dark matter in light of CDMS II results: a comparative study for different models
• Experimental constraints on nMSSM and implications on its phenomenology
• Higgs Mediated EDMs in the Next-to-MSSM: An Application to Electroweak Baryogenesis
• A Light Supersymmetric Axion in an Anomalous Abelian Extension of the Standard Model
• Supersymmetric Higgs Singlet Effects on B-Meson FCNC Observables at Large tan(beta)
• Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
• Peccei-Quinn NMSSM in the light of 125 GeV Higgs
• ${\rm Y}\to \gamma A_1$ in the NMSSM at large tan beta
• Coupling dark energy with Standard Model states
• CP violation in the secluded U(1)'-extended MSSM
• Singlino Resonant Dark Matter and 125 GeV Higgs Boson in High-Scale Supersymmetry
• An exact solution of the Dirac equation with CP violation
• Many Leptons at the LHC from the NMSSM
• Naturalness and stability of the generalized Chaplygin gas in the seesaw cosmon scenario
• Supersymmetry and Superstring Phenomenology