Coupling and recoupling coefficients for Wigner’s U(4) supermultiplet symmetry Phong Dang, Jerry P. Draayer, Feng Pan, Tomáš Dytrych, Daniel Langr, David Kekejian, Kevin S. Becker and Noah Thompson Eur. Phys. J. Plus, 139 10 (2024) 933 Published online: 25 October 2024 DOI: 10.1140/epjp/s13360-024-05581-6