Leptonic CP and Flavor Violations in SUSY GUT with Right-handed Neutrinos
arXiv:2102.04070 · doi:10.1103/PhysRevD.104.035038
Abstract
We study leptonic CP and flavor violations in supersymmetric (SUSY) grand unified theory (GUT) with right handed neutrinos, paying attention to the renormalization group effects on the slepton mass matrices due to the neutrino and GUT Yukawa interactions. In particular, we study in detail the impacts of the so-called Casas- Ibarra parameters on CP and flavor violating observables. The renormalization group effects induce CP and flavor violating elements of the SUSY breaking scalar mass squared matrices, which may result in sizable leptonic CP and flavor violating signals. Assuming seesaw formula for the active neutrino masses, the renormalization group effects have been often thought to be negligible as the right-handed neutrino masses become small. With the most general form of the neutrino Yukawa matrix, i.e., taking into account the Casas-Ibarra parameters, however, this is not the case. We found that the maximal possible sizes of signals of leptonic CP and flavor violating processes are found to be insensitive to the mass scale of the right-handed neutrinos and that they are as large as (or larger than) the present experimental bounds irrespective of the right-handed neutrino masses.
23 pages, 8 figures
References in corpus (8)
- Possible Signals of Wino LSP at the Large Hadron Collider
- Higgs Mass and Unnatural Supersymmetry
- Lepton Flavour Violation from SUSY--GUTs: Where do we stand for MEG, PRISM/PRIME and a Super Flavour factory
- Impact of on Lepton Flavour Violating processes within SUSY Seesaw
- Charged Lepton Decays L_i to L_j + gamma, Leptogenesis CP-Violating Parameters and Majorana Phases
- CP Violation in B_s Mixing in the SUSY SU(5) GUT with Right-handed Neutrinos
- Lepton flavor violation in the supersymmetric seesaw model after the LHC 8 TeV run
- EDM with and beyond flavor invariants