Non-minimal Split Supersymmetry

Abstract

We present an extension of the minimal split supersymmetry model, which is capable of explaining the baryon asymmetry of the Universe. Instead of MSSM we start from NMSSM and split its spectrum in such a way that the low energy theory contains neutral particles, in addition to the content of minimal split supersymmetry. They trigger the strongly first order electroweak phase transition (EWPT) and provide an additional source of CP-violation. In this model, we estimate the amount of the baryon asymmetry produced during EWPT, using WKB approximation for CP-violating sources in diffusion equations. We also examine the contribution of CP-violating interactions to the electron and neutron electric dipole moments and estimate the production of the neutralino dark matter. We find that both phenomenological and cosmological requirements can be fulfilled in this model.

31 pages, 9 figures, typos corrected

References in corpus (15)

• An Improved Experimental Limit on the Electric Dipole Moment of the Neutron
• Aspects of Split Supersymmetry
• Split Supersymmetry
• Electroweak Phase Transition and Baryogenesis in the nMSSM
• Electroweak Baryogenesis and New TeV Fermions
• Resonant Relaxation in Electroweak Baryogenesis
• MSSM Electroweak Baryogenesis and Flavour Mixing in Transport Equations
• Electric Dipole Moments in Split Supersymmetry
• Dark Matter in the Finely Tuned Minimal Supersymmetric Standard Model
• Kinetic description of fermion flavor mixing and CP-violating sources for baryogenesis
• Electric Dipole Moment in the Split Supersymmetry Models
• Phase Transitions in the NMSSM
• One Loop Predictions of the Finely Tuned SSM
• Signals for CP Violation in Split Supersymmetry
• Smallness of Baryon Asymmetry from Split Supersymmetry

Cited by in corpus (8)

• Phenomenology of the nMSSM from colliders to cosmology
• Cosmological phase transition, baryon asymmetry and dark matter Q-balls
• Novel Higgs Decays and Dark Matter in the E(6)SSM
• Gravitational waves from phase transition in split NMSSM
• The Higgsino-Singlino World at the Large Hadron Collider
• Split NMSSM with electroweak baryogenesis
• The Singlet Extended Standard Model in the Context of Split Supersymmetry
• Electroweak Phase Transitions with BSM Fermions