Difference between revisions of "DV RunGroupC Moller"

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'''[[Momentum and angular distributions.]]''' 11GeV
 
'''[[Momentum and angular distributions.]]''' 11GeV
  
[[File:FinalMom.jpg]]
+
[[[File:ElectronMomentumLabFrame.jpg]]][[File:MollerMomentumLabFrame.jpg]]
 
 
[[File:FinalMomCM.jpg]]
 
 
 
[[File:FinalTheta.jpg]]
 
 
 
[[File:FinalThetaCM.jpg]]
 
  
 
'''[[Different Versions of Møller differential cross section]]''' 11GeV
 
'''[[Different Versions of Møller differential cross section]]''' 11GeV

Revision as of 20:06, 23 April 2015

Simulating the Moller scattering background for EG1

Step 1

Determine the Moller background using an LH2 target to check the physics in GEANT4

Incident electron energy varies from 1-11 GeV.

LH2 target is a cylinder with a 1.5 cm diameter and 1 cm thickness.

  (Following dimensions listed on page 8 of File:PHY02-33.pdf)

Numbers Moller electrons per incident electron.

  While 2nd and 3rd generations are created, only 2 2nd generation daughter particles are created for 1E6 incident particles.  All knock on electrons are not counted.

Momentum and angular distributions. 11GeV

[[[File:ElectronMomentumLabFrame.jpg]]]MollerMomentumLabFrame.jpg

Different Versions of Møller differential cross section 11GeV

V1.jpg

V2.jpg

Step 2

Replace the LH2 target with an NH3 target and compare with LH2 target.


Step 3

Determine impact of Solenoid magnet on Moller events

Papers used

A polarized target for the CLAS detectorFile:PHY02-33.pdf

An investigation of the spin structure of the proton in deep inelastic scattering of polarized muons on polarized protons File:1819.pdf

EG12