Effect of Siegert's Theorem on Low-Energy Neutrino-Nucleus Interactions
Nuclear Theory
2018-12-26 v1 High Energy Physics - Experiment
High Energy Physics - Phenomenology
Nuclear Experiment
Abstract
We examine the importance of conserving the vector current in calculating low-energy neutrino-nucleus interactions by implicitly invoking Siegert's Theorem in describing the vector transverse electric current. We find that at low neutrino energies (E? <50 MeV), Siegert's Theorem can change neutrino cross sections for normal-parity non-spin-flip excitations by about a factor of two.The same is true of muon capture rates. At higher neutrino energies the effect of Siegert's Theorem diminishes, and by about 100 MeV the effect is very small.
Keywords
Cite
@article{arxiv.1811.08533,
title = {Effect of Siegert's Theorem on Low-Energy Neutrino-Nucleus Interactions},
author = {A. C. Hayes and J. L. Friar},
journal= {arXiv preprint arXiv:1811.08533},
year = {2018}
}