Output details

Combined search for the Standard Model Higgs boson using up to 4.9 fb-1 of pp collision data at √s = 7 TeV with the ATLAS detector at the LHC

The ATLAS combination procedure that we describe in Section-4 of this paper is based on a profile likelihood ratio test statistic. I led work and supervised a student who worked on the development and validation of the software framework used to produce the combined limits based on adding multiple channels together, whilst correctly handling the correlated and uncorrelated errors. The framework provided different statistical methods (Bayesian and frequentist) to allow comparison. It also allowed the comparison with the Tevatron method, where a profile likelihood was also used but with a test statistic that assumed a zero signal strength.