Photoproduction of Neutral Kaons on Deuterium

ORAL

Abstract

The $\gamma n \to K^0 \Lambda$ reaction on a liquid deuterium target was measured in the A2 Hall of the MAMI-C electron accelerator facility at the Institut f\"ur Kernphysik in Mainz, Germany. An incident electron beam of energy 1.5~GeV was directed on a 10-$\mu$m copper radiator to produce a {\it bremsstrahlung} photon beam that was tagged using the Glasgow Photon Tagger. The final-state $K^0$ and $\Lambda$ were identified by their decays $K^0 \to 2\pi^0$ and $\Lambda \to \pi^0 n$, respectively. These three $\pi^0$s were reconstructed by detecting and analyzing the six photons resulting from the $\pi^0$ decays using the Crystal Ball multiphoton spectrometer and the TAPS detector as a forward wall. This combined detector system covered nearly $4\pi$ in solid angle. Kinematic fitting was used to select good events. This reaction is expected to shine light on isospin-1/2 nucleon resonances in the 1.7-GeV mass range. An experimental overview and preliminary results for differential and integrated cross sections will be presented.

Authors

  • Kabi R. Bantawa

    Kent State University

  • D.M. Manley

    Kent State University