Opto-link Performance and Electroweak ZZ Measurements with the ATLAS Detector
In the ATLAS Detector at the LHC, the Pixel Detector consists of 80 million channels on 1744 modules which are read out using an 80m optical link. The performance of the optical link during the first 4 years of operations will be discussed, as well as the latest diboson electro-weak physics results from ATLAS.
The production of two Z bosons in a proton-proton collision is one of the rarest Standard Model processes. Using ATLAS data taken at a center-of-mass energy of 8TeV, this process is studied in detail for the first time. The final state where the Z bosons decay to electrons and muons has a clean signature and low backgrounds which make it ideal for precise tests of the Standard Model, Higgs boson measurements as well as for searches of high-mass resonances which would be an indication of new physics.