Preprint
Aug 2026
Neutrino Electroweak Couplings and the Neutrino Fog at Belle II
The mono-photon process $e^+e^- \to \gamma+\mathrm{invisible}$ at Belle II probes both invisible new states and the electroweak couplings of neutrinos. In this work, we study the process $e^+e^- \to \gamma\nu\bar{\nu}$, finding that Belle II with the full expected dataset can determine the neutrino-sensitive effective...
C. H. D. de Lima, D. McKeen, Afif Omar et al.
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