Faculty and Student Publications
Document Type
Article
Publication Date
8-10-2020
Abstract
© 2020 The Author(s) We present a dark sector model that reproduces the KOTO, MiniBooNE and muon anomalous magnetic moment anomalies. The dark sector is comprised of a light scalar singlet S that has a large coupling to a slightly heavier sterile neutrino that mixes with the active neutrinos. The scalar couples to standard model fermions via Yukawa couplings, and to photons via a higher-dimensional coupling. The KOTO signal is a result of the flavor-changing penguin process KL→π0S followed by the decay of S to neutrinos. The sterile neutrino produced in neutrino-nucleus scattering at MiniBooNE decays to an active neutrino and S, which decays electromagnetically and creates an event excess at low energies.
Relational Format
journal article
Recommended Citation
Datta, A., Kamali, S., & Marfatia, D. (2020). Dark sector origin of the KOTO and MiniBooNE anomalies. Physics Letters B, 807, 135579. https://doi.org/10.1016/j.physletb.2020.135579