Search for Higgs boson pair production in the $WWbb$ final state at $\sqrt{s}=13$ TeV with the ATLAS detector.

Sohail M., Di Micco B.
  Lunedì 11/09   14:30 - 18:30   Aula A208   I - Fisica nucleare e subnucleare
We report results of the search for Higgs boson pair production where one Higgs boson decays via $h\rightarrow bb$ and the other via $h\rightarrow WW^{*}\rightarrow lvqq$, where $l$ is either an electron or a muon. This search uses the full dataset 2015 ($3.2 fb^{-1}$) plus 2016 ($33.3 fb^{-1}$) of proton-proton collision data at the center-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider (LHC). The Higgs boson is an important piece of the Standard Model (SM). The SM predicts the production of non-resonant Higgs boson pairs via Yukawa-type interactions and the Higgs boson self-coupling. Furthermore, many extensions of the SM predict the existence of an additional scalar boson ($H$) which may have mass larger than twice the Higgs mass and can subsequently decay into a Higgs boson pair.