The 7.68-Mev State inC12

Abstract

Magnetic analysis of the alpha-particle spectrum from ${\mathrm{N}}^{14}(d, \alpha ){\mathrm{C}}^{12}$ covering the excitation energy range from 4.4 to 9.2 Mev in ${\mathrm{C}}^{12}$ shows a level at 7.68±0.03 Mev. At $E_d=620\mathrm{}$ kev, ${\theta }_{\mathrm{lab}}=90\mathrm{}°$, transitions to this state are only 6 percent of those to the level at 4.43 Mev.