M4transitions observed in pion inelastic scattering onN15

Pion-Nucleus Interactions

“…(Here stretched states encompass those whose total angular momen tum is the maximum that can be attained by means of a one-particle-one hole excitation.) Such transitions have been observed in (n,n') experiments in almost all p-shell nuclei and in 28Si (97,99,100,(123)(124)(125)(126)(127).…”

Scattering of Electrons, Nucleons, and Pions as Probes of Nuclear Structure

“…Other interesting examples of p� and p}+ differences deduced from pion inelastic scattering studies have been discussed recently (182)(183)(184)(185). The studies of the high spin "stretched" excitations emphasize the importance of conventional confi guration mixing effects since only 15-25% and 30-50% of the T = 0 and T = 1 single-particle-hole strength is observed experimentally (32,34,35,106,108,(174)(175)(176)(177)(182)(183)(184)(185) and the effects of the A are not important for high angular momentum transfer (168)(169)(170).…”

Status of the Nuclear Shell Model

“…Excited states in nuclei up to about A = 20 have been studied in a full 1hw (s-p-sd) model space. The original Millener-Karath interaction (193) and modifi ed versions of it continue to be used with success in this lhw model space (60,(194)(195)(196)(197)(198)(199)(200)(201)(202). Van Hees & Glaudemans (203) have more recently developed a new interaction based on a comprehensive study of both Ohw and 1liw excitations for many nuclei in the A = 4 -16 mass region.…”