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Re: Revised CbmGeaneUtil, CbmGeanePro and CbmTrackParP. [message #6866 is a reply to message #6861] Mon, 09 June 2008 16:58 Go to previous messageGo to previous message
Sebastian Neubert is currently offline  Sebastian Neubert
Messages: 282
Registered: March 2006
Location: Munich
first-grade participant

From: *adsl.alicedsl.de
Lia,

how can I check if the covariances I get are reasonable? Is there any standard procedure that you use?

What seems to cause the trouble for me is that the value cov[0][4] -- the covariance between q/p and the v-coordinate -- is changing sign. I do not understand why covariances between the coordinate and the momentum should change sign after ane xtrapolation at all... do you have an idea?

Cheers!
Sebastian.


Sebastian Neubert
Technische Universität München
Department Physik E18
sneubert@e18.physik.tu-muenchen.de
tel: +49-8928912592
 
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