The second-order ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ mechanism proposed by Noble can account for the recent observation of fine structure if the ${}_{}{}^6{}_{}{}^{}\mathrm{Li}_{}^{*}{}_{}{}^{}$ and ${}_{}{}^8{}_{}{}^{}\mathrm{Be}$ nuclei are coupled to states of definite $J^{\pi }$.

• Received 9 February 1970

DOI:https://doi.org/10.1103/PhysRevC.2.321