Opened 9 years ago
Closed 9 years ago
#748 closed defect (fixed)
Strange particle codes in Whizard/Pythia output
| Reported by: | kilian | Owned by: | ALL |
|---|---|---|---|
| Priority: | P1 | Milestone: | v2.2.8 |
| Component: | interfaces | Version: | 2.2.7 |
| Severity: | normal | Keywords: | |
| Cc: |
Description
Trying to rescan a file generated by Moxin (Whizard-NLO+Pythia, e,e -> b,bbar), the generated HepMC file contains particle codes 4124 and 14122. Those codes are not in the official PDG list, and therefore not in SM_hadrons. But, apparently, known to Pythia. Any idea what to do here? Are there more unknown particles?
Change History (3)
comment:2 Changed 9 years ago by
Well, we might just accept any code without complaints, maybe only if shower/hadronization is on. The advantage of having them in SM_hadrons is that we can call them by name in our own output, and that we know the spin. (Other quantum numbers are trivial, and masses are not set there.)
So I guess, your last recommendation is the best we can do ... it's merely updates to a single text file.
comment:3 Changed 9 years ago by
| Resolution: | → fixed |
|---|---|
| Status: | new → closed |
Should be fixed in r7226. To be reopened as soon as the next shows up.
This is a never ending story of extending
share/models/SM_hadrons.mdl. The list is already quite long but obviously 4124 and 14122 are not in it. I found this http://herwig.hepforge.org/db/particle/14122/ and this http://herwig.hepforge.org/db/particle/4124/ on Herwig. The PDG sites seem to be not fully available. So they seem to be higher spin excitations of Lambda_c+. Maybe we should just scrape the complete information from Herwig or Pythia. Or we keep adding the ones that are missing as soon as user complains pop up.