# IBD yield per fission uncertainty covariance matrix contribution from statistical uncertainty. # Uncertainties are provided for each bin in 239Pu effective fission fraction. # # Refers to errors pictured in Figure 2 of: # “Measurement of Reactor Antineutrino Flux and Spectrum Evolution at Daya Bay.” # # p0.xxx: IBD yield statistical error value for bin with average Pu239 effective fission fraction 0.xxx # # Error values in this matrix are given in terms of (x10^-43 cm^2/fission)^2: # When diagonal element p0.xxx is multiplied by 10^-86, the square root of the # product will reproduce the error bar for bin p0.xxx in Figure 2. # # This matrix, cov_stat, properly combined with the statistical covariance matrix cov_syst: # cov_tot = cov_stat + cov_syst # is used to determine best-fit values for sig_bar and dsig/df239, # the average IBD yield and change in IBD yield per unit effective fission fraction. p0.344 p0.332 p0.321 p0.311 p0.299 p0.287 p0.274 p0.252 p0.344 1.22e-04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 p0.332 0.00 1.37e-04 0.00 0.00 0.00 0.00 0.00 0.00 p0.321 0.00 0.00 1.34e-04 0.00 0.00 0.00 0.00 0.00 p0.311 0.00 0.00 0.00 1.37e-04 0.00 0.00 0.00 0.00 p0.299 0.00 0.00 0.00 0.00 1.14e-04 0.00 0.00 0.00 p0.287 0.00 0.00 0.00 0.00 0.00 1.11e-04 0.00 0.00 p0.274 0.00 0.00 0.00 0.00 0.00 0.00 1.10e-04 0.00 p0.252 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.97e-04