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Problem with 4C-fit [message #14727]

Tue, 07 May 2013 10:51

L. Zotti
Messages: 6
Registered: December 2010

occasional visitor

From: *to.infn.it

Dear All,
I'm trying to analize the following channel:
psi(4040) -> D*+ D*- -> D0 D0bar pi+ pi-
with the neutral mesons going to k pi pi.
I have some problem with the 4 constraint fit, you can find the all the macro in the attachment.
I got the following error, already with the first event:

loop index 0
0
Error: illegal pointer to class object dstarpu 0x0 4521 ana_4constraint.C:251:
*** Interpreter error recovered ***

I was also trying to access the TCandidate of the fitter, but I got the same error.
Does anybody of you know how to solve this problem?
Thanks in advance,
Best Regards,
Laura

Attachment: PSI4040.DEC
(Size: 0.29KB, Downloaded 264 times)
Attachment: sim_complete.C
(Size: 7.19KB, Downloaded 281 times)
Attachment: digi_complete.C
(Size: 4.63KB, Downloaded 270 times)
Attachment: reco_complete.C
(Size: 5.16KB, Downloaded 269 times)
Attachment: pid_complete.C
(Size: 3.56KB, Downloaded 254 times)
Attachment: ana_4constraint.C
(Size: 8.32KB, Downloaded 270 times)

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Re: Problem with 4C-fit [message #14728 is a reply to message #14727]

Tue, 07 May 2013 11:00

Ralf Kliemt
Messages: 507
Registered: May 2007
Location: GSI, Darmstadt

first-grade participant

From: *gsi.de

Ciao Laura,

My first suggestion would be that you join the people who try out the brand new changes to the RHO package. There I repaired many things with accessing the fitted objects.

Cheers
Ralf

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