Difference between revisions of "DV RunGroupC Moller"

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Incident electron energy varies from 1-11 GeV.
 
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]])
+
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.
+
'''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
 
'''[[Momentum and angular distributions.]]''' 11GeV

Revision as of 04:12, 22 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

FinalMom.jpg

FinalMomCM.jpg

FinalTheta.jpg

FinalThetaCM.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