Spectral properties of local gauge invariant composite operators in the SU(2) Yang–Mills–Higgs model D. Dudal, D. M. van Egmond, M. S. Guimarães, L. F. Palhares, G. Peruzzo and S. P. Sorella Eur. Phys. J. C, 81 3 (2021) 222 Published online: 09 March 2021 DOI: 10.1140/epjc/s10052-021-09008-9