The CMS experiment has operated smoothly during the LHC Run-1 (2010-2013). A large numer of collisions, triggered by the CMS Level-1 and High-Level trigger systems allowed CMS to discover the Higgs boson and perform many important physics measurements and searches.
The monograph is supplemented with the performance of the PACT trigger, development studies on muon isolation and simplified track reconstruction based on the Pixel Detector.