Neutrino Masses from a Pseudo-Dirac Bino

2016/06/30 by Pilar Coloma, Seyda Ipek · 9 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Double beta decay #Electron #Lepton #Massless particle #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Seesaw molecular geometry #hep-ex #hep-ph

paper · pdf · doi:10.1103/physrevlett.117.111803

published in Physical Review Letters 117(11), 111803 (American Physical Society) · 5 pages, 2 figures, matches the published version

openalex publication_date 2016/09/09 · arxiv created 2016/09/19 · arxiv updated 2016/09/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

We show that, in U(1)_R-symmetric supersymmetric models, the bino and its Dirac partner (the singlino) can play the role of right-handed neutrinos and generate the neutrino masses and mixing, without the need for traditional bilinear or trilinear R-parity violating operators. The two particles form a pseudo-Dirac pair, the "biνo." An inverse seesaw texture is generated for the neutrino-biνo sector, and the lightest neutrino is predicted to be massless. Unlike in most models with heavy right-handed neutrinos, the biνo can be sizably produced at the LHC through its interactions with colored particles, while respecting low energy constraints from neutrinoless double-beta decay and charged lepton flavor violation.

Citations

• Muon conversion to electron in nuclei in type-I seesaw models
• Updated fit to three neutrino mixing: status of leptonic CP violation
• Higgs boson mass and electroweak observables in the MRSSM
• Searches for Lepton Flavor Violation in the Decaysτ±→e±γandτ±→μ±γ
• Minimal radiative neutrino mass mechanism for inverse seesaw models
• Search for Majorana Neutrinos near the Inverted Mass Hierarchy Region with KamLAND-Zen