|Message: Extrapolating particle by hand||Not Logged In (login)|
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we have the particle position and momentum of our primary particle given at the z=0 position, but we need to start this primary particle at z=-9m. In addition we have a magnetic dipole field in our setup which should be considered in the backwards extrapolation.
Is there a possibility to use a Geant4 function to calculate the x and y position as well as the momentum of the particle at z=-9m before we generate the primary vertex?
Thanks in advance!