Difference between revisions of "Comparison of GEANT Simulation to Whitney Data"
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| Line 15: | Line 15: | ||
| Event Cross-Section (nb) || .61 || .61|| || 0.079 | | Event Cross-Section (nb) || .61 || .61|| || 0.079 | ||
|- | |- | ||
| − | |Moller Cross-Section (nb) || 0.58||0.58 || || 0.075 | + | |Moller Cross-Section (nb) || 0.58||0.58 || 0.58 || 0.075 |
|- | |- | ||
| Length of Target (cm) || 1 || 1 ||5 ||5 | | Length of Target (cm) || 1 || 1 ||5 ||5 | ||
|- | |- | ||
| − | | t_{simulated} (s) || 1.3E-5 ||1.3E-4 || ||9.54E-5 | + | | t_{simulated} (s) || 1.3E-5 ||1.3E-4 || 9.7E-5 ||9.54E-5 |
|- | |- | ||
| N_{events} || 1026940 || 10270829|| || 1001700 | | N_{events} || 1026940 || 10270829|| || 1001700 | ||
Revision as of 03:57, 12 February 2018
| Simulation | GEANT4(1cm target) | GEANT4(1cm target) | GEANT4(5cm target) | Whitney |
| Event Cross-Section (nb) | .61 | .61 | 0.079 | |
| Moller Cross-Section (nb) | 0.58 | 0.58 | 0.58 | 0.075 |
| Length of Target (cm) | 1 | 1 | 5 | 5 |
| t_{simulated} (s) | 1.3E-5 | 1.3E-4 | 9.7E-5 | 9.54E-5 |
| N_{events} | 1026940 | 10270829 | 1001700 | |
| N_{Moller} | 975593 | 9757288 | 7316407 | 951138 |
| N_{incident} | 4E7 | 4E8 | 6E7 | 6E7 |
Moller 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