Tuning Pythia8

Asked by Zhijie Zhao

Hi all,

Recently, I am working on tuning Pythia8, but I find that the Pythia8 section in WHIZARD manual is empty.

I know that I can set Pythia6 parameters by $ps_PYTHIA_PYGIVE in SINDARIN file.

Can I set the Pythia8 parameters by a similar way?

Thank you very much.

Best regards,
Zhijie

Question information

Language:
English Edit question
Status:
Solved
For:
WHIZARD Edit question
Assignee:
Juergen Reuter Edit question
Solved by:
Juergen Reuter
Solved:
Last query:
Last reply:
Revision history for this message
Best Juergen Reuter (j.r.reuter) said :
#1

Dear Zhijie,
the answer depends whether you are using PYTHIA8 standalone, and injecting e.g. LHEF or HepMC events into PYTHIA8. Then you'd just write your standalone PYTHIA8 analysis file like in their example folder. If you are using the WHIZARD interface to PYTHIA8, there are two options: directly from SINDARIN using the command
$ps_PYTHIA8_config = "<string>"
or from an ASCII input, e.g. foo.txt by using the command
$ps_PYTHIA8_config_file = "foo.txt"
E.g. you could write:
$ps_PYTHIA8_config = "PartonLevel:MPI = off"
to switch off multiple interactions in PYTHIA8 at the parton level etc.
Cheers,
     JRR

Revision history for this message
Zhijie Zhao (zjzhao1002) said :
#2

Thanks Juergen Reuter, that solved my question.