Speaker
ATLAS Poster Presenter
(ATLAS)
Description
In Run I, a search for high mass higgs decaying to two Z bosons has been performed in both ATLAS and CMS experiments. The search in ATLAS consists of 4 channels depending on the Z decays, llll, llvv, llqq and vvqq. This poster will mainly focus on the decay channels where one of the Z decay leptonicly and the other hadronically, meaning the vvqq and llqq channels from ATLAS.
The search uses the proton-proton collision data sample at the centre-of-mass energy of 8TeV with an integrated luminosity of 20.3fb-1. The assumed high mass higgs width is narrow compared with the experimental mass resolution. The mass range in the search is from 200(llqq)/400(vvqq) GeV to 1TeV.
The search strategy will be presented in the poster ,particularly, the event selection , background estimation, control regions, systematic uncertainties , and the final result will be described.
No significant excess of events over the Standard Model prediction is found. The upper limits are set on the production cross-section of a heavy higgs boson times branching ratios to Z pairs. And the interpretation to 2HDM will be briefly mentioned.
Primary author
ATLAS Poster Presenter
(ATLAS)
