Search for the reactiont+t→α+de−+ν¯

Abstract

The $^{3}\mathrm{He}(^{3}\mathrm{He}, {\mathrm{de}}^{+}\ensuremath{\nu})^{4}\mathrm{He}$ reaction has been reported with $\ensuremath{\sigma}=3.4$ nb/(srMeV), at ${E}_{{3}_{\mathrm{He}}}=13.5$ MeV. We have searched for deuteron production with $^{3}\mathrm{H}(t, {\mathrm{de}}^{\ensuremath{-}}\overline{\ensuremath{\nu}})^{4}\mathrm{He}$ reaction; we find $\ensuremath{\sigma}\ensuremath{\le}0.3$ nb/sr, at ${E}_{t}=1.4$ MeV.NUCLEAR REACTIONS $^{3}\mathrm{H}(t, d{e}^{\ensuremath{-}}\overline{\ensuremath{\nu}})^{4}\mathrm{He}$, ${E}_{t}=1.4$ MeV, measured $\ensuremath{\sigma}\ensuremath{\le}0.3$ nb/sr. Implications solar $\ensuremath{\nu}$ rate.