|Message: Spin polarized electrons||Not Logged In (login)|
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Hello, I am trying myself on a simulation of an experiment involving Møller-Scattering. The setup is as simple as it could get: Polarized electrons with 130MeV are shot at a polarized target, both polarized in the Direction of the beam for a maximum affect of the spin polarization on the scattering. I then measure the intensity of the beam as a function of the angle Theta(Initial Momentum -> After-Scattering-Momentum). I expect it to be depending on the polarization... My Physics List is constructed like this: G4VModularPhysicsList* physicsList = new G4VModularPhysicsList; physicsList->RegisterPhysics(new G4EmLivermorePolarizedPhysics); runManager->SetUserInitialization(physicsList); I polarize my electrons via macro file: /gun/polarization 0. 0. 1. and /gun/polarization 0. 0. -1. My target, which I am shooting at, is polarized via the PolarizationManager: G4PolarizationManager * polMgr = G4PolarizationManager::GetInstance(); polMgr->SetVolumePolarization(fLogicTarget,G4ThreeVector(0.,0.,1.)); Sadly, with this setup, I cannot reproduce the expected polarization dependence. Furthermore, in Example Pol01 I also can't see any dependence of the produced data on the polarization. I am a little confused here and very happy about any help. Cheers Jan -- Jan Wissmann TU Darmstadt - Institut fuer Kernphysik Schlossgartenstrasse 9 D-64289 Darmstadt Tel.: +49 6151/16-5121 Office: S214/101 Email: email@example.com
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