In a recent publication Zheng, Vary, and Barrett reproduced the negative quadrupole moment of ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$ and the low-lying positive-parity states of ${}_{}{}^5{}_{}{}^{}\mathrm{He}$ by using a no-core shell model. In this Comment we question the meaning of these results by pointing out that the model used is inadequate for reproducing these properties. © 1996 The American Physical Society.

• Received 27 February 1995

DOI:https://doi.org/10.1103/PhysRevC.53.1444