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Problem with low momentum Pion Thu, 03 April 2008 17:53
 Vanniarajan Suyam Jothi Messages: 35Registered: October 2007 Location: Groningen continuous participant From: *KVI.nl
Hello Andrea,
I was Implementing a tracking mu- of 1 Gev Momenta by taking the momenta and position from the Tpc track to the volume in Emc using the PropagatetoVolume call of Geane. The tracking has failed for the small momenta below 0.5 Mev of q/p < -2.0. As you see here it fails at TRPROP call. Can you tell me where is the problem in this case?

Is it possible to pass a flag for propagation failure instead of such a failure?

fEnd =
0xb107c60
Position : (-57., -3.2, -22.)
Angles : Lambda = -0.37, Phi = -2.9
q/p = -1.0
fCovMatrix[0] = 0xb107c60 7.6e-05
fCovMatrix[1] = 0xb107c60 2.4e-05
fCovMatrix[2] = 0xb107c60 -3.3e-06
fCovMatrix[3] = 0xb107c60 -0.00013
fCovMatrix[4] = 0xb107c60 0.00042
fCovMatrix[5] = 0xb107c60 2.2e-05
fCovMatrix[6] = 0xb107c60 -1.8e-06
fCovMatrix[7] = 0xb107c60 -5.8e-05
fCovMatrix[8] = 0xb107c60 0.00038
fCovMatrix[9] = 0xb107c60 2.2e-06
fCovMatrix[10] = 0xb107c60 3.9e-05
fCovMatrix[11] = 0xb107c60 -3.1e-05
fCovMatrix[12] = 0xb107c60 0.00076
fCovMatrix[13] = 0xb107c60 -0.00099
fCovMatrix[14] = 0xb107c60 0.0067
exec CbmGeaneTrLheTpcEmc : 1/29
exec1/29
exec1/29
exec1/29
fStart =
0xb107af0
Position : (5.2, -17., -6.6)
Angles : Lambda = -0.36, Phi = -1.2
q/p = -2.2
fCovMatrix[0] = 0xb107af0 0.00027
fCovMatrix[1] = 0xb107af0 3.7e-05
fCovMatrix[2] = 0xb107af0 -4.7e-05
fCovMatrix[3] = 0xb107af0 0.0
fCovMatrix[4] = 0xb107af0 0.0
fCovMatrix[5] = 0xb107af0 1.8e-05
fCovMatrix[6] = 0xb107af0 -8.1e-06
fCovMatrix[7] = 0xb107af0 3.5e-13
fCovMatrix[8] = 0xb107af0 5.4e-14
fCovMatrix[9] = 0xb107af0 2.7e-05
fCovMatrix[10] = 0xb107af0 4.6e-09
fCovMatrix[11] = 0xb107af0 7.0e-10
fCovMatrix[12] = 0xb107af0 1.6e-07
fCovMatrix[13] = 0xb107af0 -1.3e-07
fCovMatrix[14] = 0xb107af0 9.8e-07
Propagate Helix to Volume

*** Error in subr. TRPROP 3 called bysubr. ERPROP

*** Break *** floating point exception
Attaching to program: /proc/22782/exe, process 22782
0xffffe410 in __kernel_vsyscall ()
error detected on stdin
The program is running. Quit anyway (and detach it)? (y or n) [answered Y; input not from terminal]
Detaching from program: /proc/22782/exe, process 22782
Root >
root [1] .q

Cheers,
Vanni

 Problem with low momentum Pion By: Vanniarajan Suyam Jothi on Thu, 03 April 2008 17:53 Re: Problem with low momentum Pion By: Andrea Fontana on Fri, 04 April 2008 09:51 Re: Problem with low momentum Pion By: Vanniarajan Suyam Jothi on Tue, 08 April 2008 09:06
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