Measuring the cross section of antineutrino-induced charge current quasi-elastic neutral hyperons in ArgoNeuT

This poster will cover work done on the first topological and calorimetric study of the cross section measurement of antineutrino-induced charge current quasi-elastic (CCQE) neutral hyperons in liquid argon. This study is being conducted in the Argon Neutrino Test (ArgoNeuT) experiment at Fermi National Accelerator Laboratory. ArgoNeuT is a liquid argon time projection chamber (LArTPC), which provides full 3D-imaging, excellent particle identification capability, precise calorimetric energy reconstruction, and represents the most advanced experimental technology for neutrino physics. This project uses 1.2x10\textasciicircum 20 protons-on-target, in the NuMI beam operating in the low energy antineutrino mode. The reconstruction and analysis techniques developed and improved in this study can be applied to a wide variety of future LArTPC experiments. CCQE Neutral Hyperons are induced exclusively by antineutrinos and can be used as an ``antineutrino tagger'' for larger experiments. This poster will present analysis techniques and preliminary findings for the CCQE neutral hyperon cross section in liquid argon.