電磁相互作用によるハイペロン生成に関する連続コロキウム<br>(1) An isobar model for kaon photo- and electroproduction on the nucleon<br>(2) Electromagnetic K<sup>+</sup> production on the deuteron and hyperon-nucleon interactions
(1) T. Mart (2) Kazuya Miyagawa
(1) University of Indonesia (2) Okayama Science University
日時：2001年08月28日（火） 16:15-18:00
場所：東北大学理学部物理C棟208号室
(1)An isobar model for kaon photoproduction on the nucleon has beenconstructed by using an effective Lagrangian technique. The model is constrained by applying SU(3) coupling constants in the Born terms and gauge invariance in the amplitude. A good agreement withavailable experimental data is obtained. The model is then extended to describe kaon electroproduction data by including the appropriate longitudinal terms.(2)Photo- and electroproduction processes of K+ on thedeuteron are investigated theoretically. Modern hyperon-nucleon forces as well as an updated kaon productionoperator on the nucleon are seen in various observables.Especially the photoproduction double polarization observableCz is shown to provide a handle to distinguish differenthyperon-nucleon force models.
当日１６：００より茶菓を用意いたします。