LHC would-beγγexcess as a nonperturbative effect of the electroweak interaction

Abstract

The recently reported would-be excess at 125 GeV in invariant mass distribution of $\ensuremath{\gamma}\ensuremath{\gamma}$ and of ${l}^{+}{l}^{+}{l}^{\ensuremath{-}}{l}^{\ensuremath{-}}$ obtained in the course of the Higgs boson search at LHC is tentatively interpreted as a scalar bound state of two $W$. Nonperturbative effects of electroweak interactions obtained by the application of the Bogoliubov compensation approach lead to such bound states due to the existence of anomalous three-boson gauge-invariant effective interactions. The application of this scheme gives satisfactory agreement with existing data without any adjusting parameter except for the bound state mass 125 GeV, while $\ensuremath{\sigma}\mathrm{BR}$ for $\ensuremath{\gamma}\ensuremath{\gamma}$ resonance is predicted to be twice as much as the value for the standard model Higgs. The decay channel $\ensuremath{\gamma}{l}^{+}{l}^{\ensuremath{-}}$ and an effect in $3\ensuremath{\gamma}$ production may serve as decisive checks of the interpretation.