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Question Confusion about G4Step 

Forum: Event and Track Management
Date: 18 Aug, 2017
From: <frolandh>

To Whom it May Concern,

I'm trying to determine angles in elastic collisions, which I get from the momentum vector of the parent particle's prestep point and the momentum vector of the secondary particle's track (from the function GetSecondaryInCurrentStep()). I specify the parent prestep point's process to be "hadElastic", however the momentum of the parent from prestep to poststep doesn't change, which confuses me.

How can I get the momentum direction of the parent particle right before an elastic collision with a secondary particle?

Thank you

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1 None: Re: Confusion about G4Step   (Makoto Asai - 18 Aug, 2017)
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