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Opened 9 years ago

Closed 9 years ago

#754 closed defect (fixed)

Wrong mother-daughter relations (NLO + POWHEG + LHE)

Reported by: kilian Owned by: cweiss
Priority: P1 Milestone: v2.2.8
Component: nlo Version: 2.2.7
Severity: normal Keywords:
Cc:

Description

Reported by Moxin: When generating e+e- -> uu (1 loop) with OpenLoops? and Powheg enabled, the resulting events (in LHE format) have wrong mother indices of the final-state particles u+u+g. It looks like the correct parents have been eliminated. This defect prohibits hadronization.

Elimination of intermediates may be correct for the event output, but then the parents should be reassigned. Don't know whether this is a problem of generation or of event output.

Attachments (3)

extra_nlo_qq_powheg.sin​ (1.9 KB) - added by kilian 9 years ago.
Sindarin input
wrong.PNG​ (11.4 KB) - added by kilian 9 years ago.
Sample even w/ wrong assignment
right.PNG​ (10.3 KB) - added by kilian 9 years ago.
Sample event w/ corrected assignment

Download all attachments as: .zip

Change History (5)

Changed 9 years ago by kilian

Attachment: extra_nlo_qq_powheg.sin​ added

Sindarin input

Changed 9 years ago by kilian

Attachment: wrong.PNG​ added

Sample even w/ wrong assignment

Changed 9 years ago by kilian

Attachment: right.PNG​ added

Sample event w/ corrected assignment

comment:1 Changed 9 years ago by kilian

@CW: Moxin mentioned that you might already have solved this issue, but apparently the code is not in the trunk ...?

comment:2 Changed 9 years ago by cweiss

Resolution: → fixed
Status: new → closed
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