Domain walls and CP violation with left right supersymmetry:implications for leptogenesis and electron EDM
arXiv:2012.05872 · doi:10.1007/JHEP07(2021)039
Abstract
Low scale leptogenesis scenarios are difficult to verify due to our inability to relate the parameters involved in the early universe processes with the low energy or collider observables. Here we show that one can in principle relate the parameters giving rise to the transient violating phase involved in leptogenesis with those that can be deduced from the observation of electric dipole moment (EDM) of the electron. We work out the details of this in the context of the left right symmetric supersymmetric model (LRSUSY) which provides a strong connection between such parameters. In particular, we show that baryon asymmetry requirements imply the scale of symmetry breaking to be larger than . Moreover the scale of symmetry breaking is tightly constrained to lie in a narrow band significantly below . These are the most stringent constraints on the parameter space of LRSUSY model being considered.
32 pages, second version contains more discussion of the temperature dependence of the mass matrix in a new Appendix B
References in corpus (8)
- 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
- Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond
- Matter and Antimatter in the Universe
- Unification, Proton Decay and Topological Defects in non-SUSY GUTs with Thresholds
- Prospects of gravitational waves in the minimal left-right symmetric model
- Gravitational waves from cosmological phase transitions
- PeV scale Left-Right symmetry and baryon asymmetry of the Universe