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arXiv · hep-ph/9610317

MSW-like Enhancements without Matter

G. J. Stephenson Jr.·T. Goldman·B. H. J. McKellar
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Abstract

We study the effects of a scalar field, coupled only to neutrinos, on oscillations among weak interaction current eigenstates. The effect of a real scalar field appears as effective masses for the neutrino mass eigenstates, the same for $\nbar$ as for $\n$. Under some conditions, this can lead to a vanishing of $δm^2$, giving rise to MSW-like effects. We discuss some examples and show that it is possible to resolve the apparent discrepancy in spectra required by r-process nucleosynthesis in the mantles of supernovae and by Solar neutrino solutions.

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G. J. Stephenson Jr., T. Goldman, B. H. J. McKellar. 1996-10-10. MSW-like Enhancements without Matter. https://doi.org/10.1142/s021773239700248x

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