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Question GetMomentumDirection please explain  

Forum: Documentation and Examples
Date: 26 Dec, 2011
From: benny <benny>

kindly clarify my doubt regarding momentum direction vector.

suppose i get aStep->GetPreStepPoint()//(0,0,-2) aStep->GetPreStepPoint()->GetMomentumDirection()//(-.5,.3,.7)

in which direction is particle moving with respect to origin,

Please see attached picture file which face side is particle is moving and little explanation (better if graphical).

i tried this Point [P]<x,y,z> on any face

[P]= [GetPreStepPoint()] + t * [GetMomentumDirection()]

Thanks

   Attachment:
      http://hypernews.slac.stanford.edu/HyperNews/geant4/get/AUX/2011/12/26/18.25-94429-cube2j.JPG

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1 None: Re: GetMomentumDirection please explain   (Ivana Hrivnacova - 03 Jan, 2012)
(_ Feedback: Re: GetMomentumDirection please explain   (benny - 03 Jan, 2012)
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