The RNO framework to the $σ$-particle mass

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/47771The "standard" iso-singlet scalar particle $σ$ is reconsidered in the reduced normal-ordering (RNO) framework to the effective SU(2) theory. Recent reanalysis of the $ππ$-phase shift [1] is used.LaTeX, 6 pages, no figures and tablesHigh Energy Physics - PhenomenologyThe RNO framework to the $σ$-particle masstext