Difference between revisions of "Comparison of GEANT Simulation to Whitney Data"

From New IAC Wiki
Jump to navigation Jump to search
 
(33 intermediate revisions by the same user not shown)
Line 8: Line 8:
  
  
−
{| class="wikitable" align="center" border=1
+
{| align=center border=1
 
|+ '''Rates'''
 
|+ '''Rates'''
 
|-
 
|-
−
| Simulation || GEANT4(1cm target) ||GEANT4(1cm target)|| GEANT4(5cm target) || Whitney
+
! Simulation || GEANT4(1cm target) ||GEANT4(1cm target)|| GEANT4(5cm target) || GEANT4(5cm target) || Whitney
 
|-
 
|-
−
| Event Cross-Section (nb) || .61 || .61|| || 0.079
+
| Length of Target (cm) || 1 || 1 || 5 ||5 ||5
 
|-
 
|-
−
|Moller Cross-Section (nb) || 0.58||0.58 || 0.58 || 0.075
+
| <math>N_{incident}(Total)</math> || 4E7 ||4E8 || 6E6 ||6E7 || 6E7
 
|-
 
|-
−
| Length of Target (cm) || 1 || 1 ||5 ||5
+
| <math>N_{events}(Total)</math> || 1026940 || 10270829|| 771161 ||4826141 || 1001700
 
|-
 
|-
−
| t_{simulated} (s) || 1.3E-5 ||1.3E-4 || 9.7E-5 ||9.54E-5
+
| <math>N_{events}(5^{\circ}-40^{\circ})</math> || 305570 || 3054080|| 229266|| ||  
 
|-
 
|-
−
| N_{events} || 1026940 || 10270829|| || 1001700
+
| <math>N_{Moller}(Total)</math> || 975593 || 9757288|| 732603||4584834 || 951138
 
|-
 
|-
−
| N_{Moller} || 975593 || 9757288|| 7316407 || 951138
+
| <math>N_{Moller}(5^{\circ}-40^{\circ})</math> ||290291  || 2901376|| 217803|| 1362098||  
 
|-
 
|-
−
| N_{incident} || 4E7 ||4E8 ||6E7 || 6E7
+
| <math>t_{simulated}(Total)</math> (s) || 1.3E-5 ||1.3E-4 || 9.57E-6||9.62E-5 ||9.54E-5
 +
|-
 +
| Total Event Cross-Section (b) || 0.61 || 0.61|| 0.61 ||0.38 || 0.079
 +
|-
 +
| Total Moller Cross-Section (b) || 0.58||0.58 || 0.58 ||0.361 || 0.075
 +
|-
 +
| Detector Event Cross-Section (b) || 0.18 || 0.18|| 0.18 || ||
 +
|-
 +
| Detector Moller Cross-Section (b) ||0.17 ||0.17 ||0.17  || ||  
 
|}
 
|}
  
  
−
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
+
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
 +
 
 +
 
 +
[[File:Cross_Section.png]]
 +
 
 +
If we were to integrate the Moller Differential Cross Section
 +
 
 +
[[File:6e7incLH2_MolDiffXSect.png]]
 +
 
 +
[[File:Screen_Shot_2018-03-29_at_8.57.34_AM.png]]

Latest revision as of 18:21, 30 March 2018

[math]\textbf{Navigation}[/math]

[math]\vartriangleleft [/math] [math]\triangle [/math] [math]\vartriangleright [/math]


Rates
Simulation GEANT4(1cm target) GEANT4(1cm target) GEANT4(5cm target) GEANT4(5cm target) Whitney
Length of Target (cm) 1 1 5 5 5
[math]N_{incident}(Total)[/math] 4E7 4E8 6E6 6E7 6E7
[math]N_{events}(Total)[/math] 1026940 10270829 771161 4826141 1001700
[math]N_{events}(5^{\circ}-40^{\circ})[/math] 305570 3054080 229266
[math]N_{Moller}(Total)[/math] 975593 9757288 732603 4584834 951138
[math]N_{Moller}(5^{\circ}-40^{\circ})[/math] 290291 2901376 217803 1362098
[math]t_{simulated}(Total)[/math] (s) 1.3E-5 1.3E-4 9.57E-6 9.62E-5 9.54E-5
Total Event Cross-Section (b) 0.61 0.61 0.61 0.38 0.079
Total Moller Cross-Section (b) 0.58 0.58 0.58 0.361 0.075
Detector Event Cross-Section (b) 0.18 0.18 0.18
Detector Moller Cross-Section (b) 0.17 0.17 0.17


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


Cross Section.png

If we were to integrate the Moller Differential Cross Section

6e7incLH2 MolDiffXSect.png

Screen Shot 2018-03-29 at 8.57.34 AM.png

Retrieved from "https://wiki.iac.isu.edu/index.php?title=Comparison_of_GEANT_Simulation_to_Whitney_Data&oldid=122282"