Antineutrino induced antikaon production off the nucleon

TL;DR

This paper models antineutrino-induced antikaon production off nucleons at low to intermediate energies, providing insights relevant for neutrino oscillation experiments and future antineutrino research.

Contribution

We developed a microscopic model based on SU(3) chiral Lagrangians that includes background and resonant mechanisms for antikaon production induced by antineutrinos.

Findings

Model predictions for antikaon production cross sections.

Relevance for background estimation in neutrino oscillation experiments.

Potential guidance for future antineutrino experiments.

Abstract

The charged current antikaon production off nucleons induced by antineutrinos is studied at low and intermediate energies. We extend here our previous calculation on kaon production induced by neutrinos. We have developed a microscopic model that starts from the SU(3) chiral Lagrangians and includes background terms and the resonant mechanisms associated to the lowest lying resonance in the channel, namely, the Sigma*(1385). Our results could be of interest for the background estimation of various neutrino oscillation experiments like MiniBooNE and SuperK. They can also be helpful for the planned antineutrino experiments like MINERvA, NOvA and T2K phase II and for beta-beam experiments with antineutrino energies around 1 GeV.