Loop-Level Lepton Flavor Violation and Diphoton Signals in the Minimal Left-Right Symmetric Model
Analysis
This paper explores the lepton flavor violation (LFV) and diphoton signals within the minimal Left-Right Symmetric Model (LRSM). It investigates how the model, which addresses parity restoration and neutrino masses, can generate LFV effects through the mixing of heavy right-handed neutrinos. The study focuses on the implications of a light scalar, H3, and its potential for observable signals like muon and tauon decays, as well as its impact on supernova signatures. The paper also provides constraints on the right-handed scale (vR) based on experimental data and predicts future experimental sensitivities.
Key Takeaways
- •The paper investigates lepton flavor violation (LFV) within the minimal Left-Right Symmetric Model (LRSM).
- •It explores the role of a light scalar (H3) in generating observable signals like muon and tauon decays.
- •The study provides constraints on the right-handed scale (vR) and predicts future experimental sensitivities.
- •The model offers a potential explanation for tiny active neutrino masses via seesaw mechanisms.
“The paper highlights that the right-handed scale (vR) is excluded up to 2x10^9 GeV based on the diphoton coupling of H3, and future experiments could probe up to 5x10^9 GeV (muon experiments) and 6x10^11 GeV (supernova observations).”