Home » PANDA » PandaRoot » Analysis » Vertex fitters' problems
| Re: Vertex fitters' problems [message #14892 is a reply to message #14888] |
Fri, 21 June 2013 18:43   |
L. Zotti
Messages: 6
Registered: December 2010
|
occasional visitor |
From: *to.infn.it
|
|
Dear Ralf,
thanks for your helping.
Looking in your analysis macro, I found you just missed one "break" at line 273. Actually with this modification, I got some better results from the ChiVtx fitter.
Moreover, cleaning the sample looking at the FitStatus flag, I got the following resolution:
PndChiVtxFitter x:32um y:52um z:138
PndVtxPRG (full) x:61um y:60um z:103um
PndVtxPRG (fast) x:60um y:61um z:103um
Plots for PndChiVtxFitter:
Plots for PndKinVtxFitter:
Plots for PndVtxPoca
Plots for PndVtxPRG
1)fast: 
2)full: 
Still to be understood why resolution are different in x and y for the PndChiVtxFitter.
Do you think this results are reliables?
The KinVtxFitter and the Poca one still give strange results.
For what concern the kinematics, actually the kaons and the pions from the d0-meson are well separated in angle, how you can see here:
-
Attachment: opening_angle.png
(Size: 7.96KB, Downloaded 533 times)
-
Attachment: ChiVtx.png
(Size: 25.80KB, Downloaded 533 times)
-
Attachment: FastVtx.png
(Size: 27.66KB, Downloaded 533 times)
-
Attachment: FullVtx.png
(Size: 26.98KB, Downloaded 517 times)
-
Attachment: KinVtx.png
(Size: 26.92KB, Downloaded 503 times)
-
Attachment: PocaVtx.png
(Size: 27.32KB, Downloaded 530 times)
|
|
|
|
Current Time: Mon Nov 25 02:17:23 CET 2024
Total time taken to generate the page: 0.00737 seconds
|
GSI Forum
Search
Help
Members
Login
Home
