Studies of Electromagnetic Transitions inN14by Means of theC12(

Abstract

calculations, however, occurs in the prediction of the energy levels of the different states. The Serber force calculation gives energy spectra of the 1~, T= 1 states in essential agreement with experiment using a strength parameter equal to that for the free nucleon-nucleon interaction. On the other hand for the zero-range force we must use an interaction strength two to three times smaller than the free-particle strength in order to obtain reasonable agreement with the experimental spectrum of oxygen 16. As shown in Ref. 14, this weakening of the interaction is obtained mainly by using the Serber exchange-force mixture, which has no contribution in relative odd angular-momentum states.

Study ofN14by the ReactionCHolbrow1, Middleton2, Rosner3 1966Phys. Rev.25000View full textAdd to dashboardCite

“…These states are well known to have positive parity and spins of 1 and 3, respectively. 3,4 They are weakly excited in the 13 C( 3 He,d) 14 N reaction, but are very strongly excited in the 12 C ( 3 He,^) 14 N reaction 17 indicating that these states arise from two particle excitations outside the 12 C core. The configurations are probably Si /2 2 and ^5/2 2 +^i/2^5/2 for the 1 + and 3 + states, respectively.…”

“…1 Their work has been supplemented by further studies of 14 N based chiefly on the analysis of decay y rays [2][3][4][5] and at the present time the spins and parities of most of the levels up to 10-MeV excitation are established.…”