Measurement of properties of the Higgs boson in bosonic decay channels using the ATLAS detector

Abstract

The properties of the Higgs boson measured in bosonic decay channels ($H\to \gamma \gamma$, $H\to Z{Z}^{\ast }\to 4\ell$, $H\to W{W}^{\ast }\to \ell \nu \ell \nu$, $H\to Z\gamma$) with 25 fb${}^{-1}$ of pp collision data from the Large Hadron Collider run-1 collected by the ATLAS experiment are presented. The results include an improved measurement of the mass of the Higgs boson from a combined fit to the invariant mass spectra of the decay channels $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$, which yields $m_H=125.36\pm 0.37$ (stat) $\pm 0.18$ (syst) GeV = $125.36\pm 0.41$ GeV and supersedes the previous result from ATLAS.

6 pages, 8 figures, Large Hadron Collider Physics (LHCP) Conference 2014

References in corpus (2)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Measurement of the Higgs boson mass from the $H\to \gamma \gamma$ and $H\to Z{Z}^{\ast }\to 4\ell$ channels with the ATLAS detector using 25 fb${}^{-1}$ of $pp$ collision data