Combination of results on the Higgs Boson in ATLAS

The combination of the most recent results obtained by the ATLAS experiment at the LHC on the Higgs boson is presented. The combined mass measurement derived from the $H \to \gamma \gamma$ and $H \to ZZ^{(*)} \to 4l$ channels using the full 2011 and 2012 dataset is $m_H$ = $125 ± 2 (stat)^{+0.5}_{-0.6}$ (sys) GeV. The combination of all studied nal states, including the $H \to \tau\tau, H \to b\bar{b}$ and $H \to WW^{(*}) \to l\nu l\nu$ channels using a partial dataset is reported. The combined signal strength is determined to be $\mu$ = 1.43 ± 0.16 (stat) ± 0.14 (sys) at a mass of 125.5 GeV. The production modes and coupling properties of this new particle are also studied.