Recent Developments in one and two Pion Production in Elementary Reactions and Few-Body Systems
In this talk we cover several issues concerning pion production. The first one is the pp → ppπ 0 reaction where an alternative explanation based on the off shell extrapolation of the πN amplitude is offered. A recent model for the γN → ππN reaction is presented and a new kind of exchange current is constructed from it which allows one to address problems like double ∆ photoproduction from the deuteron. Finally the (γ, ππ) reaction in nuclei is studied and shown to be highly sensitive to the renormalization of the pions in nuclei.
KeywordsFeynman Diagram Exchange Current Final State Interaction Impulse Approximation Isospin Channel
Unable to display preview. Download preview PDF.
- 8.G. Hamilton: High Energy Physics, Ed. E.H.S. Burhop, Vol. 1: Academic Press, New York (1967) p. 194Google Scholar
- 11.J.A. Gómez Tejedor, F. Cano, E. Oset: in preparationGoogle Scholar
- 12.A. Braghieri, L. Murphy et al: to be publishedGoogle Scholar
- 13.H. Ströher: Private CommunicationGoogle Scholar