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units in vtx fitter [message #17006] Mon, 14 July 2014 16:00 Go to next message
Alexandros is currently offline  Alexandros
Messages: 51
Registered: January 2014
Location: KVI
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From: *kvi-cart.rug.nl
Hi,

can anyone tell me which are the units coming form the vtx fitter??
are they in cm or mm??
thanks
Re: units in vtx fitter [message #17007 is a reply to message #17006] Mon, 14 July 2014 16:02 Go to previous messageGo to next message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
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From: *to.infn.it
The standard units are GeV and cm.
Re: units in vtx fitter [message #17008 is a reply to message #17007] Mon, 14 July 2014 16:09 Go to previous messageGo to next message
Alexandros is currently offline  Alexandros
Messages: 51
Registered: January 2014
Location: KVI
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From: *kvi-cart.rug.nl
Crying or Very Sad Crying or Very Sad
Too bad for me..
Thanks a lot anyway!!
Re: units in vtx fitter [message #17009 is a reply to message #17008] Mon, 14 July 2014 16:22 Go to previous messageGo to next message
StefanoSpataro is currently offline  StefanoSpataro
Messages: 2736
Registered: June 2005
Location: Torino
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From: *to.infn.it
???
Re: units in vtx fitter [message #17021 is a reply to message #17008] Wed, 16 July 2014 10:32 Go to previous message
Elisabetta Prencipe (2) is currently offline  Elisabetta Prencipe (2)
Messages: 214
Registered: February 2013
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From: *ikp.kfa-juelich.de
Hello Alexandros,

I experienced some problems with vertex resolution and loss of efficiency, too, recently, in the analysis of the Ds mesons, which I am working on.
I had used the trunk rev 25345.

Due to some geometry update, apparently it looks there was a bug in that trunk revision. Now I updated my trunk to the rev 25545, as Stefano suggested some days ago; and it looks much better.
This is maybe the problem that you found(?)

Talk to you later, Elisabetta
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