GSI Forum: Tracking » Helix and FairTrackParH

Home » PANDA » PandaRoot » Tracking » Helix and FairTrackParH

Show: Today's Messages :: Polls :: Message Navigator

Re: Helix and FairTrackParH [message #9048 is a reply to message #9047]

Thu, 23 July 2009 13:44

Gianluigi Boca
Messages: 177
Registered: March 2004

first-grade participant

From: *gsi.de

hi Stefano,
I don't know if this answers your question.
Find the momenta at any given point of the trajectory is rather trivial when one knows the initial momentum and the radius and conter of the helix.
It is just enough to remember that for Panda Px**2 + Py**2 is constant and that the momentum in the XY plane is always perpendicular to the radius of the helix.

Does this answer your question?

Tschus und aufwiedersehen !

Gianluigi

Report message to a moderator

[Message index]

		Helix and FairTrackParH By: StefanoSpataro on Wed, 22 July 2009 17:37
		Re: Helix and FairTrackParH By: Alberto Rotondi on Thu, 23 July 2009 10:24
		Re: Helix and FairTrackParH By: StefanoSpataro on Thu, 23 July 2009 13:00
		Re: Helix and FairTrackParH By: Gianluigi Boca on Thu, 23 July 2009 13:44
		Re: Helix and FairTrackParH By: StefanoSpataro on Thu, 23 July 2009 15:45
		Re: Helix and FairTrackParH By: Gianluigi Boca on Thu, 23 July 2009 18:15
		Re: Helix and FairTrackParH By: StefanoSpataro on Thu, 23 July 2009 18:26
		Re: Helix and FairTrackParH By: Lia Lavezzi on Thu, 23 July 2009 19:41
		Re: Helix and FairTrackParH By: StefanoSpataro on Thu, 23 July 2009 20:04
		Re: Helix and FairTrackParH By: Lia Lavezzi on Thu, 23 July 2009 22:02
		Re: Helix and FairTrackParH By: StefanoSpataro on Fri, 24 July 2009 13:18

Previous Topic:	Event Display and PndTrack
Next Topic:	point of closest approach

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Thu Dec 26 20:53:58 CET 2024

Total time taken to generate the page: 0.00873 seconds