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Re: Forward calorimeter [message #4510 is a reply to message #4495] Tue, 19 June 2007 10:56 Go to previous messageGo to previous message
Aleksandra Wronska is currently offline  Aleksandra Wronska
Messages: 38
Registered: May 2006
Location: Cracow
continuous participant
From: *if.uj.edu.pl
Hi Stefano,

I fitted the calibration points from TPR with a combination of 2 exponents and got the following parameter values:

TF1* fun = new TF1("fun","[0]*exp([1]*x)+[2]*exp([3]*x)",0.01,3.0);
fun->SetParameter(0,3.45);
fun->SetParameter(1,-4.82e-03);
fun->SetParameter(2,2.52e-01 );
fun->SetParameter(3,-5.1914);

The function is different that that in TPR, but is not worse to describe the data.

cheers,
ola
 
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