Measurements of the photon induced production of $\hat{I}›$ in the ${}^2$H$({\hat{I}}^3,\hat{I}›)$X process at threshold energies

Abstract

An experiment was carried out with the NKS2+ in 2010 at the Research Center for Electron Photon Science (ELPH), in which tagged photon beams in the range of 0.8 $\le$ $E_{\hat{I}}^3$ $\le$ 1.1 GeV were impinged on a liquid ${}^2$H target positioned at the center of the NKS2+. The produced $\hat{I}›$ was subsequently detected by the $p\ddot{I}{€}^{-}$ decay channel. Integrated cross sections of the ${}^2$H$({\hat{I}}^3,\hat{I}›)$X in the angular region of 0.9 $\le$ $\cos \hat{I}{¸}_{\hat{I}}{›}^{LAB}$ $\le$ 1.0 was derived and compared with preceding experimental results of the NKS2 collaboration. In addition, the momentum spectra for two photon energy regions were also procured. The $\hat{I}›$ angle dependent cross sections as a function of the scattering angle in the laboratory system was additionally deduced. We present the latest results on the excitation function of $\hat{I}›$ photoproduction, the momentum distributions, angular distributions, and polarization.

6 pages, 6 pages. Proceedings of the International Workshop on Strangeness Nuclear Physics (SNP12), August 27 - 29, 2012, Neyagawa, Osaka, Japan