Triple Higgs Coupling as a Probe of the Twin-Peak Scenario
  In this letter, we investigate the case of a twin peak around the observed 125 GeV scalar resonance, using di-Higgs production processes at both LHC and $e^{+}e^{-}$ Linear Colliders. We have shown that both at LHC and Linear Collider the triple Higgs couplings play an important role to identify this scenario; and also that this scenario can be distinguishable from any Standard Model extension by extra massive particles which might modify the triple Higgs coupling. We also introduce a criterion that can be used to ruled out the twin peak scenario. 
Amine Ahriche (Jijel U., ICTP, Trieste and Bielefeld U.), Abdesslam   Arhrib (Tanger U.) and Salah Nasri (United Arab Emirat...
hep-ph hep-ex