Flavor-changing Majoron interactions with leptons
arXiv:2012.15287 · doi:10.1103/PhysRevD.104.013001
Abstract
When the Standard Model Higgs sector is extended with a complex singlet that breaks global lepton number symmetry spontaneously, a massless Goldstone boson called the Majoron J arises. In addition to increasing Higgs invisible decay through mixing, the Majoron can generally have flavor-changing interactions with fermions. We find that type-III seesaw model poses such interesting properties with both charged leptons and neutrinos. This opens up new channels to search for the Majoron. We use the experimental data such as muonium-anti-muonium oscillation and flavor-changing neutrino and charged lepton decays to put constraints on the couplings. As a novel way to reveal the chiral properties of these interactions, we propose an experimentally measurable polarization asymmetry of flavor-changing l to l' J decays.
arXiv comment5 pages, no figure; updated to 8 pages, to appear in PRD
References in corpus (14)
- Searches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma
- The of charged leptons, and the hyperfine splitting of muonium
- The Belle II Physics Book
- Future Physics Programme of BESIII
- Search for Lepton Flavor Violating Tau Decays into Three Leptons with 719 Million Produced Tau+Tau- Pairs
- Low energy effects of neutrino masses
- Global constraints on heavy neutrino mixing
- Search for invisible decays of a Higgs boson produced through vector boson fusion in proton-proton collisions at 13 TeV
- New Bounds from Searching for Muonium to Antimuonium Conversion
- Large Mixing of Light and Heavy Neutrinos in Seesaw Models and the LHC
- Majoron emission in muon and tau decays revisited
- Muonium-antimuonium oscillations in effective field theory
- Lepton FCNC in Type III Seesaw Model
- Structure Of Flavor Changing Goldstone Boson Interactions