Highlights from Run 1 and first results from Run 2 at ATLAS
Bergische Universitaet Wuppertal, Germany
27 October 2015, Tuesday, 14:40
Cavid Erginsoy Seminar Room, Physics Department, 3rd floor
ATLAS is one of the general purpose experiments at the Large Hadron Collider (LHC), beginning its data taking in 2009. The Run 1 data taking of ATLAS ran from 2009 until the beginning of 2013, collecting ~25 fb-1 of p-p collision data. The analysis of these data resulted in the discovery of a Higgs boson in 2012. This talk will summarize the current understanding of the properties of this new particle, and will also present the results of several other measurements and searches for new physics. During the 2013/2014 shutdown of the LHC, the ATLAS detector has been improved. A new silicon pixel detector layer has been installed, and the muon detector coverage has been improved substantially. In addition, nearly all other parts of the detector have also been revised to adapt them to the higher pile-up conditions or make them more robust in general. This talk will describe these improvements, and how they affect the performance of physics objects. The initial results showing the detector performance as obtained from initial beam data will also be shown.