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Re: Problem with mass constraint fit for two gamma [message #17039 is a reply to message #17037] Thu, 17 July 2014 10:29 Go to previous messageGo to previous message
donghee is currently offline  donghee
Messages: 385
Registered: January 2009
Location: Germnay
first-grade participant
From: *kph.uni-mainz.de
Dear Stefano and Dima,

I am very happy to inform you that the problem is finally solved.
Test two plot show the chi2 distribution for D0(gammagamma) mass constrain fit before and after fixed error matrix in PndEmcErrorMatrix.
One need to re-run pid correlator to have correct error matrix during the analysis.
In addition, I will update soon more precise estimation of error matrices according current EMC geometry & will report about it in our PANDAroot meeting.
Thanks again to Stefano for your valuable effort and great help.

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