Photoproduction of Hyperons at SPring-8/LEPS

✍ Scribed by Wen-Chen Chang

• Book ID: 103867872
• Publisher: Elsevier Science
• Year: 2010
• Tongue: English
• Weight: 489 KB
• Volume: 835
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/j.nuclphysa.2010.01.198

✦ Synopsis

Differential cross sections and photon-beam asymmetries for hyperon photoproduction from protons and neutrons are measured in the photon energy range from 1.5 to 2.4 GeV at the SPring-8/LEPS facility. The acceptance sits at very forward and backward direction of K scattering angle in the center-of-mass system. We report the recent results of photoproduction of Σ * -(1385) and Λ(1520). The beam asymmetries of Σ * -(1385) are negative, in contrast with positive values for Σ -. A large asymmetry of the production cross section from protons and neutrons was observed for Λ(1520) at backward K angles.