Results scaled to 250 fb^-1 - muon channel

By simply scaling the data histograms, the central values did not change and the errors are larger, as expected

Likelihood fit

• r_bb = 1.013 ± 0.038
• r_cc = 0.81 ± 0.46
• r_gg = 0.98 ± 0.45

Chi2 fit

• r_bb = 1.012 ± 0.044
• r_cc = 0.87 ± 0.54
• r_gg = 0.93 ± 0.51

The contribution from the MC to the errors in the parameters should be the same as in the 500fb^-1 case because on the MC side nothing changed. The pull distributions for pseudo-experiments with MC only give contributions of 46% in the estimated error arising from the MC finiteness, yielding exactly the same errors as before.

• r_bb = 1.012 ± 0.039 (data) ± 0.020 (MC)
• r_cc = 0.84 ± 0.48 (data) ± 0.25 (MC)
• r_gg = 0.95 ± 0.45 (data) ± 0.23 (MC)

The statistical errors from the data in the chi2 fit are very similar to the ones from the likelihood.

It seems that with 250fb^1 of luminosity, even combining the different channels, the measurement of the branching ratio of the Higgs boson will be quite poor.