Empirical rules for three-quasiparticle quadruplets: role of Gallagher–Moszkowski doublets Manpreet Kaur, Sushil Kumar, Sukhjeet Singh and A. K. Jain Eur. Phys. J. Plus, 140 7 (2025) 629 Published online: 04 July 2025 DOI: 10.1140/epjp/s13360-025-06585-6