Neutrino-Deuteron Reactions at Solar Neutrino Energies in Pionless Effective Field Theory with Dibaryon Fields

Abstract

We study breakup of the deuteron induced by neutrinos in the neutral $\nu d\to \nu np$, $\bar{\nu }d\to \bar{\nu }np$ and the charged $\bar{\nu }d\to e^{+}nn$, $\nu d\to e^{-}pp$ processes. Pionless effective field theory with dibaryon fields is used to calculate the total cross sections for neutrino energies $E_{\nu }$ from threshold to 20 MeV. Amplitudes are expanded up to next-to-leading order, and the partial wave is truncated at $P$-waves. The Coulomb interaction between two protons is included nonperturbatively in the reaction amplitudes, and an analytic expression of the amplitudes is obtained. The contribution of the next-to-leading order to the total cross section is in the range of 5.2$-$9.9\% in magnitude, and that of the $P$-wave is 2.4$-$2.8\% at $E_{\nu }=20$ MeV. Uncertainty arising from an axial isovector low-energy constant is estimated to be on the order of 1\%.

arXiv comment25 pages, 5 figures

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Cited by in corpus (5)

• A D${}_2$O detector for flux normalization of a pion decay-at-rest neutrino source
• Cluster effective field theory and nuclear reactions
• The $S$ matrices of elastic $\alpha$-${}^{12}$C scattering at low energies in effective field theory
• Simulating the neutrino flux from the Spallation Neutron Source for the COHERENT experiment
• Analysis of elastic $\alpha$-${}^{12}$C scattering with global optimization in the cluster effective field theory