Warning: the calculations shown on this page assume the discriminator performance observed for prototypes produced in the orbit process. We have decided to use chips produced in the hp process for the MVD. Therefore, the calculations shown here are not directly relevant to the performance of the MVD in Phenix.
The following plots show the trigger performance as a function of pseudorapidity in the MVD's inner barrel for discriminators with the performance measured for prototypes produced in the orbit process. As before, the plots show the number of hits with perfect discriminator on the horizontal axis and the number we would expect to measure with our discriminator performance on the vertical axis. In this case, rather than plotting the total multiplicity in the inner barrel, the multiplicity in all strips in bins of delta-z = 5.12 cm (the size of the detector wafers) is used. The slope changes by a few percent over this range of pseudorapidty (eta) values. These plots are also available in the original postscript versions.
