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Problem with 4C-fit [message #14727] Tue, 07 May 2013 10:51 Go to previous message
L. Zotti is currently offline  L. Zotti
Messages: 6
Registered: December 2010
occasional visitor
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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
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,
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