Speaker
Mr
Sangho Kim
(Soongsil University)
Description
We investigate $\phi$ photoproduction on the nucleon and on the ${}^4$He targets with a dynamical model approach by considering the Pomeron exchange, meson exchange, $\phi$ radiation, and nucleon resonance excitation mechanisms. The final $\phi N$ interactions are included and described by the gluon-exchange, direct $\phi N$ couplings, and the box diagrams arising from the couplings with $\pi N$, $\rho N$, $K \Lambda$, and $K \Sigma$ channels. Our results for $\gamma p \to \phi p$ are in good agreement with the CLAS data. The coherent $\phi$ production on the ${}^4$He target is described by using the distorted-wave impulse approximation. The predicted differential cross sections match with the LEPS data.
Primary authors
Prof.
T.-S. H. Lee
(Argonne National Lab.)
Prof.
Seung-il Nam
(Pukyong Natl. Univ.)
Prof.
Yongseok Oh
(KNU)
Co-author
Mr
Sangho Kim
(Soongsil University)
