Merge pull request #43173 from lauridsj/fix_emission_veto_CMSSW_7_1_X

[Backport 7_1_X] Fix EmissionVetoHook for BB4L
cms-sw · Nov 7, 2023 · 17cafb5 · 17cafb5
2 parents 92ad642 + 793c53d
commit 17cafb5
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/GeneratorInterface/Pythia8Interface/plugins/EmissionVetoHook1.cc b/GeneratorInterface/Pythia8Interface/plugins/EmissionVetoHook1.cc
@@ -433,7 +433,7 @@ bool EmissionVetoHook1::doVetoFSREmission(int, const Pythia8::Event &e, int iSys
   if (iSys != 0) return false;
 
   // only use for outside resonance vetos in combination with bb4l:FSREmission:veto
-  if (!inResonance && settingsPtr->flag("POWHEG:bb4l:FSREmission:veto")==1) return false;
+  if (inResonance && settingsPtr->flag("POWHEG:bb4l:FSREmission:veto")==1) return false;
 
   // If we already have accepted 'vetoCount' emissions in a row, do nothing
   if (vetoOn && nAcceptSeq >= vetoCount) return false;