Analysis of (pi^{+-},K^+) and (K^-,K^+) hypernuclear production spectra in distorted wave impulse approximation

Maekawa, Hideki; Tsubakihara, Kohsuke; Ohnishi, Akira

Analysis of (pi^{+-},K^+) and (K^-,K^+) hypernuclear production spectra in distorted wave impulse approximation

Authors

Maekawa, Hideki

Tsubakihara, Kohsuke

Ohnishi, Akira

Description

We study the hyperon-nucleus potential with distorted wave impulse wave approximation (DWIA) using Green's function method. In order to include the nucleon and hyperon potential effects in Fermi averaging, we introduce the local optimal momentum approximation of target nucleons. We can describe the quasi free Lambda, Sigma and Xi production spectra in a better way than in the standard Fermi averaged t-matrix treatments.
4 pages, 5 figures, to appear in the proceedings of the IX International Conference on Hypernuclear and Strange Particle Physics (HYP2006)