Fully hadronic $t\overline{t}$ cross section with the ATLAS detector

A measurement of the $t\overline{t}$ production cross section in the all-hadronic decay mode using the full data sample collected by the ATLAS experiment in 2011 is presented. Events are selected using a multi-jet trigger. Kinematic and $b$-tagging requirements are then applied to identify $t\overline{t}$ event candidates. A kinematic fit reconstructs the event topology of the final state extracting the top-quark mass which is then used to measure the production cross section with an unbinned likelihood fit. The result is found in good agreement with the Standard Model prediction for a top-quark mass of 172.5 GeV.