Can SUSY relax LNV constraints coming from loop corrections to light neutrino masses on the low-scale Seesaw?

Abstract

Heavy neutrinos from the Type-I Seesaw model can have a large mixing with active states, motivating their search at collider experiments. However, loop corrections to light neutrino masses constrain the heavy neutrinos to appear in pseudo-Dirac pairs, leading to a potential suppression of lepton number violating parameters. In this work we perform a detailed review of a proposal to relax constraints on lepton number violation by adding supersymmetry. We define the conditions necessary to maximise the SUSY screening effect, with the objective of allowing a larger mass splitting between low-scale heavy neutrino masses. We find that the sole addition of SUSY does not guarantee a screening, and that favourable cases have some degree of fine-tuning.

arXiv comment10 figures

References in corpus (50)

• Oscillating neutrinos and mu --> e, gamma
• A complete analysis of FCNC and CP constraints in general SUSY extensions of the standard model
• SPheno, a program for calculating supersymmetric spectra, SUSY particle decays and SUSY particle production at e+ e- colliders
• SARAH 4: A tool for (not only SUSY) model builders
• SPheno 3.1: extensions including flavour, CP-phases and models beyond the MSSM
• The Search for Heavy Majorana Neutrinos
• Neutrinos and Collider Physics
• Combined measurements of Higgs boson production and decay using up to $80$ fb${}^{-1}$ of proton-proton collision data at $\sqrt{s}=$ 13 TeV collected with the ATLAS experiment
• Right-Handed Neutrinos at LHC and the Mechanism of Neutrino Mass Generation
• Automatic Calculation of supersymmetric Renormalization Group Equations and Self Energies
• SARAH 3.2: Dirac Gauginos, UFO output, and more
• Renormalization of the Neutrino Mass Operator
• Naturalness Versus Supersymmetric Non-renormalization Theorems
• From Superpotential to Model Files for FeynArts and CalcHep/CompHep
• Radiatively Induced Neutrino Masses and Large Higgs-Neutrino Couplings in the Standard Model with Majorana Fields
• Running Neutrino Mass Parameters in See-Saw Scenarios
• Solar and Atmospheric Neutrino Oscillations and Lepton Flavor Violation in Supersymmetric Models with Right-handed Neutrinos
• Renormalization Group Equations for Seesaw Neutrino Masses
• Minimal Flavour Seesaw Models
• A possible symmetry of the $\nu$MSM
• TeV Scale See-Saw Mechanisms of Neutrino Mass Generation, the Majorana Nature of the Heavy Singlet Neutrinos and $\betabeta$-Decay
• Exploring new models in all detail with SARAH
• Search for heavy Higgs bosons decaying into two tau leptons with the ATLAS detector using $pp$ collisions at $\sqrt{s}=13$ TeV
• Neutrinoless Double Beta Decay and Heavy Sterile Neutrinos
• Neutrinoless double beta decay versus other probes of heavy sterile neutrinos
• The Present and Future Status of Heavy Neutral Leptons
• Search for charged Higgs bosons decaying into a top quark and a bottom quark at $\sqrt{s}$=13 TeV with the ATLAS detector
• Can heavy neutrinos dominate neutrinoless double beta decay?
• The minimal 3+2 neutrino model versus oscillation anomalies
• One-loop corrections to the seesaw mechanism in the multi-Higgs-doublet Standard Model
• Minimal Supersymmetric Inverse Seesaw: Neutrino masses, lepton flavour violation and LHC phenomenology
• Seesaw mechanism in the sneutrino sector and its consequences
• On the importance of the 1-loop finite corrections to seesaw neutrino masses
• On Lepton Number Violation in Heavy Neutrino Decays at Colliders
• Reinterpreting the ATLAS bounds on heavy neutral leptons in a realistic neutrino oscillation model
• Majorana vs Pseudo-Dirac Neutrinos at the ILC
• Search for Long-Lived Heavy Neutrinos at the LHC with a VBF Trigger
• Collider Searches for Heavy Neutral Leptons: beyond simplified scenarios
• The mass insertion approximation without squark degeneracy
• Understanding neutrino properties from decoupling right-handed neutrinos and extra Higgs doublets
• SUSY Renormalization Group Effects in Ultra High Energy Neutrinos
• 3-Neutrino Mass Spectrum from Combining Seesaw and Radiative Neutrino Mass Mechanisms
• HNL mass degeneracy: implications for low-scale seesaws, LNV at colliders and leptogenesis
• Renormalization of the multi-Higgs-doublet Standard Model and one-loop lepton mass corrections
• Revisiting (s)neutrino dark matter in natural SUSY
• Radiative generation of neutrino mixing: degenerate masses and threshold corrections
• Seesaw neutrinos with one right-handed singlet field and a second Higgs doublet
• Radiative Neutrino Masses in the ${\nu }_R$MSSM
• Constraining sleptons at the LHC in a supersymmetric low-scale seesaw scenario
• Resolving a challenging supersymmetric low-scale seesaw scenario at the ILC