Abstract
A microscopic calculation of the parameters of higher-order terms in density of the p-wave pion-nucleus optical potential close to threshold is performed within the frame of the isobar-hole model for finite nuclei. The procedure takes into account absorption channels with associated dispersive effects as well as binding and Pauli principle effects. For the case of 16O, we extract values Im C 0 ≈ 0.08 μ −6 for the strength of the p-wave absorbtive potential at threshold. We find Re C 0 > 0 if Pauli and binding effects are included. Finally, we present a discussion of the connection between Re C 0 and the Lorentz -Lorenz correction on the basis of recent data on shifts of 2p levels in pionic atoms.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
