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The $\sigma$ mesons may be considered as the Higgs boson of stronginteraction. While the observation of the electroweak Higgs boson is theprimary goal in ongoing experiments at the LHC, the $\sigma$ meson is by nowwell studied both as an on-shell particle and as a virtual particle while beingpart of the constituent quark. This makes it timely to give an overview of thepresent status of the Higgs sector of strong interaction which includes thescalar mesons $\sigma(600)$, $\kappa(800)$, $f_0(980)$ and $a_0(980)$ togetherwith the pseudo Goldstone bosons $\pi$, $K$ and $\eta$.

Conference Report: Structure of scalar mesons and the Higgs sector of strong interaction