Superdeformed band in the N = Z + 4 nucleus 40Ar : A projected shell model analysis Ying-Chun Yang, Yan-Xin Liu, Yang Sun and Mike Guidry Eur. Phys. J. A, 54 12 (2018) 217 Published online: 17 December 2018 DOI: 10.1140/epja/i2018-12651-x