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

The properties of the Higgs boson measured in bosonic decay channels ($H \rightarrow \gamma\gamma$, $H \rightarrow 4\ell$, $H \rightarrow WW^{*} \rightarrow \ell\nu\ell\nu$, $H \rightarrow Z\gamma$) with the full $pp$ 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 $H \rightarrow \gamma\gamma$ and $H \rightarrow 4\ell$, that yields $m_H = 125.36 \pm 0.37 \mbox{ (stat)} \pm 0.18 \mbox{ (syst)} \mbox{ GeV}$ $= 125.36 \pm 0.41$ GeV and supersedes the previous result from ATLAS.