The European physical journal / C Particles and fields 80(5), 370 (2020). doi:10.1140/epjc/s10052-020-7858-1 Eur.Phys.J.C Eur.Phys.J.C, 2020, 80 (5), pp.370. ⟨10.1140/epjc/s10052-020-7858-1⟩ The European physical journal / C 80(5), 370 (2020). doi:10.1140/epjc/s10052-020-7858-1 The European physical journal / C, 80 (5), Article: 370