A simple solution to the LSND, MiniBooNE and muon $g-2$ anomalies
March 07, 2022
May 12, 2022
In a simple extension of the Standard Model (SM) with a second Higgs doublet and a dark singlet scalar, we are able to: (i) explain the MiniBooNE (MB) and Liquid Scintillator Neutrino Detector (LSND) anomalies while remaining compatible with the KARMEN null result, (ii) in the process, obtain a portal to the dark sector, and (iii) account comfortably for the observed value of $(g-2)_\mu$. Three SM singlet neutrinos allow for explaining non-zero neutrino masses via a seesaw Type-I mechanism, with the lighter two states participating in the LSND and MB interactions.
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