[ROOT] Pythia6 business.

From: Nick van Eijndhoven (Nick@phys.uu.nl)
Date: Tue Jul 22 2003 - 17:07:04 MEST


Dear all,
Some days ago I saw a mail from somebody who had problems in setting
pi0's stable in the TPythia6 generator using one of the recent ROOT
releases.
If I remember well, there was an answer that one can't use Pythia6.1
anymore with Root 3.05.
Obviously I got a bit nervous about such messages, so I took the latest
Root 3.05/06 binaries (gdk version for windows) from the web and run
some test on my win98 machine.
Attached you will find the little script aap.cc and the produced output
aap.log, which shows that everything runs correctly.
I think the particle code argument to SetMDCY() was wrong in email
mentioning the problem. It should not be 111, but the 'pythia equivalent
code'.
The only thing one should do (at least for the windows version) is taking
the TPythia related header files and libs and include them at the
corresponding locations in your root directory, since they are not part
(for the time being) of the binary Root release.
However, the ones of the Root 3.04 release work pretty fine.
In case you want all the TPythia stuff 'ready to copy' into the root
directory, you can pickup the TPythia.zip file of my homepage->Download.

                                                       Cheers,
                                                        Nick.

-- 
Dr. Nick van Eijndhoven mailto:nick@phys.uu.nl http://www.phys.uu.nl/~nick
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