LH2 Momentum distribution in the Center of Mass Frame

Noting that the GEANT4 data included data for the Kinetic Energy and not the total energy, we can perform the substitution using

[math]E^2=p^2+m^2[/math]

Performing the relativistic transformation, we find for an incoming electron with momentum of 11GeV, we should find the momentum in the center of mass to be around 53 MeV .

Figure 3a: The scattered electron momentum distribution for 4E7 incident 11 GeV(Lab) electrons in the Center of Mass frame of reference.

Figure 3b: The Moller electron momentum distribution for 4E7 incident 11 GeV(Lab) electrons in the Center of Mass frame of reference.

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