Comparison of GEANT Simulation to Whitney Data
|+ Rates |- | Simulation || GEANT4(1cm target) ||GEANT4(1cm target)|| GEANT4(5cm target) || Whitney |- | Event Cross-Section (b) || 0.61 || 0.61|| 0.38 || 0.079 |- |Moller Cross-Section (b) || 0.58||0.58 || 0.361 || 0.075 |- | Length of Target (cm) || 1 || 1 ||5 ||5 |- | t_{simulated} (s) || 1.3E-5 ||1.3E-4 || 9.8E-4 ||9.54E-5 |- | N_{events} || 1026940 || 10270829|| 4826141 || 1001700 |- | N_{Moller} || 975593 || 9757288|| 4584834 || 951138 |- | N_{incident} || 4E7 ||4E8 ||6E7 || 6E7
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Total dectector events occur for about 2.5% of the incident electrons on a LH2 target. We can assume that the Moller rate is 95% of the total event rate. We can assume the number of Moller events that occur within the DC range to be around 30% of the total Moller events occuring for the number of incident electrons for LH2 as well. Since the differential cross-section over the angel theta is proportional to the differtial cross-section over wire number we can dividing the Moller differential cross-section by the product of the density and length of the target material