Merge pull request #39490 from fabiocos/fc-fixinfinvalid

MTD Validation: add protection against infinite weight in simpvz histogram
cms-sw · Sep 27, 2022 · 6a9df97 · 6a9df97
2 parents 4561e8f + 431ff5e
commit 6a9df97
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/Validation/MtdValidation/plugins/Primary4DVertexValidation.cc b/Validation/MtdValidation/plugins/Primary4DVertexValidation.cc
@@ -1590,6 +1590,10 @@ void Primary4DVertexValidation::analyze(const edm::Event& iEvent, const edm::Eve
 
   //fill vertices histograms here in a new loop
   for (unsigned int is = 0; is < simpv.size(); is++) {
+    // protect against particle guns with very displaced vertices
+    if (std::isinf(1. / puLineDensity(simpv.at(is).z))) {
+      continue;
+    }
     meSimPVZ_->Fill(simpv.at(is).z, 1. / puLineDensity(simpv.at(is).z));
     if (is == 0 && optionalPlots_) {
       meSimPosInSimOrigCollection_->Fill(simpv.at(is).OriginalIndex);