Charge radii of exotic potassium isotopes challenge nuclear theory and the magic character of N = 32

Koszorús, Á, Yang, XF, Jiang, WG, Novario, SJ, Bai, SW, Billowes, J, Binnersley, CL, Bissell, ML, Cocolios, TE, Cooper, BS, de Groote, RP, Ekström, A, Flanagan, KT, Forssén, C, Franchoo, S, Ruiz, RF Garcia, Gustafsson, FP, Hagen, G, Jansen, GR, Kanellakopoulos, A, Kortelainen, M, Nazarewicz, W, Neyens, G, Papenbrock, T, Reinhard, P-G, Ricketts, CM, Sahoo, BK, Vernon, AR, Wilkins, SG