Photo-production of neutral kaons on 12C in the threshold region

• DOI: 10.1016/j.physletb.2007.06.033
• Publication Date: 2007-06-20T11:19:19Z
• Authors: T. Watanabe; P. Bydžovský; K. Dobashi; S. Endo; Y. Fujii; O. Hashimoto; T. Ishikawa; K. Itoh; H. Kanda; M. Katoh; T. Kinoshita; O. Konno; K. Maeda; A. Matsumura; F. Miyahara; H. Miyase; T. Miyoshi; K. Mizunuma; Y. Miura; S.N. Nakamura; H. Nomura; Y. Okayasu; T. Osaka; M. Oyamada; A. Sasaki; T. Satoh; H. Shimizu; M. Sotona; T. Takahashi; T. Tamae; H. Tamura; T. Terasawa; H. Tsubota; K. Tsukada; M. Ukai; M. Wakamatsu; H. Yamauchi; H. Yamazaki
• Keywords: Isobar; Invariant mass; Strangeness production

The kaon photo-production process on 12C has been studied by measuring neutral kaons in the photon energy range of 0.8–1.1 GeV. Neutral were identified invariant mass constructed from two charged pions emitted KS0→π+π− decay channel. differential and integrated cross sections threshold region obtained. obtained momentum spectra compared with a Spectator model calculation using elementary amplitudes given recent isobar models. present results provide first information n(γ,K0)Λ reaction, which is expected to play an important role constructing models strangeness production electromagnetic interactions. experimental show that section C12(γ,K0) same order as C12(γ,K+) suggest slightly backward K0 angular distribution favored γn→K0Λ process.