We depicted schematically in Fig . 1 that several corrections are needed to proceed from the direct measurement to the derived one . For the Higgs measurement we exemplified two of them , electron calibration ( Sect . 5 ) and the background beneath the enhancement at 125 GeV ( Sect . 6.2 ) , motivating that a physics model 14 is not needed for either correction . In contrast to Morrison 's assertion , virtually every single correction to determine the number of events in the enhancement at 125 GeV can be derived from data alone , using templates obtained directly from material data . 15 Thus , the mass measurement of the enhancement can not depend logically and causally on simulation , as already suggested by Massimi and Bhimji ( 2015)(p . 81 ) . While physicists strive to reach independence of physics models , they compromise in actual practice to use models in the simulation because of their convenience for inter - and extrapolations , and thus their adaptability to special conditions ( cp . Sect . 5 ) .