Neutrino Decay and Solar Neutrino Seasonal Effect

M. M. Guzzo; O. L. G. Peres; P. C. De Holanda; R. Picoreti

Neutrino Decay and Solar Neutrino Seasonal Effect

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arxiv 1506.08158 v1 pith:X3BKUNZJ submitted 2015-06-26 hep-ph astro-ph.HEhep-ex

R. Picoreti , M. M. Guzzo , P. C. de Holanda , O. L. G. Peres This is my paper · ORCID

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keywords neutrinosolardatadecayeffecthboxlifetimeseasonal

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abstract

We consider the possibility of solar neutrino decay as a sub-leading effect on their propagation between production and detection. Using current oscillation data, we set a new lower bound to the $\nu_2$ neutrino lifetime at $\tau_2\, /\, m_2 \geq 7.2 \times 10^{-4}\,\,\hbox{s}\,.\,\hbox{eV}^{-1}$ at $99\%\,$C.L.. Also, we show how seasonal variations in the solar neutrino data can give interesting additional information about neutrino lifetime.

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