Merge pull request #548 from CoffeaTeam/jer-smear-deltapt

reinstate delta-pt-rel cut to JER smearings
scikit-hep · Jul 2, 2021 · 5f1a24b · 5f1a24b
2 parents dea5818 + f25f32b
commit 5f1a24b
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/coffea/jetmet_tools/CorrectedJetsFactory.py b/coffea/jetmet_tools/CorrectedJetsFactory.py
@@ -70,9 +70,10 @@ def jer_smear(
 
     jersmear = jet_energy_resolution * jet_resolution_rand_gauss
     jersf = jet_energy_resolution_scale_factor[:, variation]
-    doHybrid = pt_gen > 0
+    deltaPtRel = (jetPt - pt_gen) / jetPt
+    doHybrid = (pt_gen > 0) & (numpy.abs(deltaPtRel) < 3)
 
-    detSmear = 1 + (jersf - 1) * (jetPt - pt_gen) / jetPt  # because of awkward1.0#367
+    detSmear = 1 + (jersf - 1) * deltaPtRel
     stochSmear = 1 + numpy.sqrt(numpy.maximum(jersf ** 2 - 1, 0)) * jersmear
 
     min_jet_pt = _MIN_JET_ENERGY / numpy.cosh(etaJet)