B. Beckford, P. Bydzovsky, A. Chiba, D. Doi, T. Fujii, Y. Fujii, K. Futatsukawa, T. Gogami, O. Hashimoto, Y. C. Han, K. Hirose, S. Hirose, R. Honda, K. Hosomi, T. Ishikawa, H. Kanda, M. Kaneta, Y. Kaneko, S. Kato, D. Kawama, C. Kimura, S. Kiyokawa, T. Koike, K. Maeda, K. Makabe, M. Matsubara, K. Miwa, S. Nagao, S. N. Nakamura, A. Okuyama, K. Shirotori, K. Sugihara, K. Suzuki, T. Tamae, H. Tamura, K. Tsukada, K. Yagi, F. Yamamoto, T. O. Yamamoto, H. Yamazaki, Y. Yonemoto
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 $\le$ $E_{\gamma}$ $\le$ 1.1 GeV were impinged on a liquid $^2$H target positioned at the center of the NKS2+. The produced $\Lambda$ was subsequently detected by the $p{\pi^{-}}$ decay channel. Integrated cross sections of the $^2$H$({\gamma},{\Lambda})$X in the angular region of 0.9 $\le$ $\cos{\theta}_{\Lambda}^{LAB}$ $\le$ 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 ${\Lambda}$ 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 ${\Lambda}$ photoproduction, the momentum distributions, angular distributions, and polarization.
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http://arxiv.org/abs/1210.7585
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