“…The correspondence for the strongest transitions observed (E x < 12 MeV) in 13 ' 14 C(j>,7r"") is not strictly to the OHu) stretched states considered above (involving only j > orbitals), but rather to states with the maximum spin (3 _ , E x =6.27 MeV in 14 0; | + , E x = 7.28 MeV in 15 0) attainable in a IHu) n~p excitation from the valence (Pi/ 2 ) subshell to the d 5 / 2 orbital. 13 Results for 13,14 C, 18 0(£,7T) suggest a rapid falloff in strength as J decreases from the maximum value [do/dQ, (30°) drops by a factor ~ 10 for A J of 2H], A similarly strong selectivity for high-spin stretched states has been observed, and attributed to momentum-matching conditions, in some heavy-ion-induced multinucleon transfer reactions, at comparable momentum transfers. 14 Stretched 2p-lh states may also be excited in (p,ir + ) reactions, if the incident proton interacts with a target nucleon from a high angular momentum orbital and the final-state nucleons are not Pauli blocked from coupling to maximum spin.…”