• Accepted Paper

Charged-current neutrino-nucleus scattering off 129Xe and 131Xe including the meson-exchange contributions

Joona Kasurinen, Pekka Pirinen, and Jouni Suhonen

Phys. Rev. C - Accepted 22 October, 2026

DOI: https://doi.org/10.1103/ym8v-cp7j

Abstract

The scattering cross sections of (anti)neutrinos off the detector material in liquid xenon detectors is of great interest in both dark matter searches and neutrino physics. Here it is necessary to use calculated cross sections because directly observed experimental ones do not exist. In this work we provide the scattering cross sections for charged-current (anti)neutrino scattering off the even–odd xenon nuclei 129,131Xe. To do this we use G-matrix-based two-nucleon interactions in large single-particle valence spaces. We model the nuclei involved using the Microscopic Quasiparticle-Phonon Model, constructing the states of the even–odd and odd–even nuclei from BCS (Bardeen–Cooper–Schrieffer) quasiparticles and QRPA (Quasiparticle Random Phase Approximation) phonons of the neighbouring even–even nuclei. Such calculations have been done before for 129,131Xe, but here we go beyond earlier works by including the effect of the meson-exchange two-body currents (2BC) that can naturally explain a part of the quenching of the weak axial-vector coupling gA. A comparison to a phenomenologically quenched one-body-currents-only (1BC-only) model shows that the inclusion of the 2BC can account for a majority of the quenching of gA.

Export citation

Export citation

Choose format for download:

Download Citation

If the author has provided any supplemental materials with this article they will be available upon publication of the version of record.

Sign In to Your Journals Account

Filter

Filter

Article Lookup

Enter a citation