Ratio of mass spectra for (|eta|<0.5) over (0.5<|eta|<1.0).  
mass bin to mass bin correlations for the systematic uncertainty.

The covariance matrix element for two mass bins i and j is given by 
cor(i,j)*sys(i)*sys(j) + stat(i)*stat(j)

   1.0000  0.5773  0.6083  0.6051  0.5196  0.5549  0.6001  0.5944  0.5906  0.5838  0.5955  0.5973  0.5760  0.5353  0.5125
   0.5782  1.0000  0.5930  0.5918  0.5018  0.5372  0.5885  0.5805  0.5753  0.5682  0.5828  0.5851  0.5621  0.5234  0.5085
   0.6072  0.5951  1.0000  0.6204  0.5316  0.5697  0.6211  0.6138  0.6122  0.6017  0.6151  0.6167  0.5959  0.5534  0.5332
   0.6070  0.5927  0.6282  1.0000  0.5422  0.5846  0.6279  0.6244  0.6252  0.6163  0.6286  0.6291  0.6084  0.5661  0.5511
   0.5204  0.5107  0.5360  0.5436  1.0000  0.8697  0.5415  0.5378  0.5344  0.5318  0.5426  0.5416  0.5288  0.4993  0.4816
   0.5553  0.5444  0.5742  0.5837  0.8677  1.0000  0.5829  0.5801  0.5726  0.5689  0.5821  0.5825  0.5672  0.5317  0.5169
   0.6014  0.5840  0.6192  0.6317  0.5434  0.5833  1.0000  0.6249  0.6224  0.6119  0.6286  0.6272  0.6038  0.5600  0.5419
   0.5954  0.5807  0.6144  0.6201  0.5345  0.5745  0.6256  1.0000  0.6248  0.6201  0.6310  0.6246  0.6058  0.5618  0.5414
   0.5908  0.5764  0.6077  0.6190  0.5334  0.5678  0.6172  0.6283  1.0000  0.6151  0.6269  0.6176  0.5967  0.5581  0.5355
   0.5828  0.5702  0.6029  0.6130  0.5256  0.5602  0.6117  0.6205  0.6162  1.0000  0.6181  0.6083  0.5891  0.5490  0.5294
   0.5948  0.5806  0.6144  0.6276  0.5348  0.5794  0.6236  0.6346  0.6307  0.6202  1.0000  0.6298  0.6072  0.5668  0.5537
   0.5962  0.5804  0.6150  0.6277  0.5414  0.5828  0.6272  0.6193  0.6201  0.6068  0.6286  1.0000  0.6222  0.5839  0.5639
   0.5770  0.5589  0.5949  0.6112  0.5273  0.5645  0.6082  0.6036  0.5963  0.5917  0.6076  0.6185  1.0000  0.5799  0.5655
   0.5278  0.5242  0.5529  0.5691  0.4958  0.5317  0.5636  0.5600  0.5577  0.5481  0.5691  0.5842  0.5799  1.0000  0.5532
   0.5112  0.5038  0.5298  0.5482  0.4826  0.5163  0.5419  0.5447  0.5375  0.5341  0.5522  0.5664  0.5654  0.5516  1.0000