CalcHEP

Problem running n_calchep

Asked by Khaled Teilab

Hi,

I use the pcm_cycle script to do an energy scan of meson production in proton-proton collisions at energies of few GeV.
When running the script, I always obtain the following error message for each new value of the incoming momenta.

PROCESS: p*+->2*x
/home/teilab/feynmancalc/calchep/calchep_3.4/sbin/newProcess: 87: exit: Illegal number: -1
 Can not compile p*+->2*x
mv: cannot stat `results/list_prc.txt': No such file or directory
mv: cannot stat `results/list_prc.txt': No such file or directory
Pcm=0.955[GeV] sigma=1.1825E+06[pb]
PROCESS: p*+->2*x
/home/teilab/feynmancalc/calchep/calchep_3.4/sbin/newProcess: 87: exit: Illegal number: -1
 Can not compile p*+->2*x
mv: cannot stat `results/list_prc.txt': No such file or directory
mv: cannot stat `results/list_prc.txt': No such file or directory
Pcm=0.956[GeV] sigma=1.3639E+06[pb]

I have 2 questions:
1) What could be the reason for such an error? Before I was using a "light" version of the Lagrangian and I didn't have this error.
2) Why do I still get a result at the end? Shouldn't the program crash if it is not able to compile a certain routine? Are the obtained results reliable?

Hope you could help me on that.
Regards,
Khaled

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Alexander Belyaev (alexander.belyaev) said : 		#1

Hi Khaled,

in order to check this problem we need to know at least what do
enter for pcm_cycle,
ideally we need to know your model and input to reproduce your problem.

Thank you,
   Sasha

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Khaled Teilab (teilab) said : 		#3

Hello Sasha,
I will send you model files per E-Mail, since I don't find the possibility to add attachments here.
Thanks a lot,
Khaled

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Alexander Belyaev (alexander.belyaev) said : 		#4

Hi Khaled,
I have got your e-mail and have replied.
In the future you can pass your model etc via links to the Dropbox, for example.
I did not manage to reproduce your problem, please try it with the fressh CalcHEP installation.
Cheers,
 Sasha

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