Experimental limits from ATLAS on Standard Model (SM) Higgs production in the mass range 110-600 GeV. The solid curve reflects the observed experimental limits, expressed in terms of the ratio (µ) of the observed cross-section to the cross-section predicted by the SM (vertical axis), for the production of Higgs for each possible mass value (horizontal axis). The region for which the solid curve dips below the horizontal line at the value of 1 is excluded with a 95% confidence level (CL). The dashed curve shows the expected limit in the absence of the Higgs boson, based on simulations. The green and yellow bands correspond (respectively) to 68%, and 95% confidence level regions from the expected limits.

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