Massive Right-handed Neutrinos in B Decays

2022/07/30 by Hongkai Liu, Liu, Hongkai
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2208.00196

openalex publication_date 2022/07/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this paper, we present the differential decay distributions for B → D^(*) ℓ X decays with a massive right-handed neutrino in the low-energy effective field theory framework and show how the massive effects of the RH neutrinos can explain the positive value of the difference in forward-backward asymmetries, ΔA_FB≡ A_FB^μ-A_FB^e, tentatively inferred from Belle data. We also make predictions for q² dependent angular observables to motivate future measurements.

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