Just published on ArXiv, C.R. Das and J. Pulido find a much better fit to measurements amount of neutrinos coming from the sun, if as well as oscillating, some of them also decay. The paper is a possible indication of non standard interactions.
I can't help but relate this to my own, axial force theory. It something of an oversight but so far, I've only done the briefest of calculation of cross-sections for high-speed neutrino, due to the axial force, noting that effect falls over as 1/E^2 for ultra relativistic neutrino we can detect from the sun, any effect would be small. However, extra scattering it is at least of the right sign, to remove some of the extra electron neutrinos. In addition the axial force can allow neutrinos to decay from one form to another (but only in the presence of other matter), to some degree. So plenty of calculations for me to do.