Increasing large-R truth jet threshold

The default threshold should be higher. It was 50 GeV in the past, and
this was missed in porting to master. Decreases the size of truth
derivations by about 10%.

PhysicsAnalysis/DerivationFramework/DerivationFrameworkMCTruth/python/MCTruthCommon.py

@@ -182,7 +182,7 @@ def addTruthJets(kernel=None, decorationDressing=None):
                                              JetRadius = 1.0,
                                              JetBuilder = DFCommon_jbld,
                                              GhostArea = 0.01,
-                                             PtMin = threshold
+                                             PtMin = 50000.
                                              )
             #Now we setup a JetRecTool which will use the above JetFinder
             AntiKt10TruthJetsRec = CfgMgr.JetRecTool("AntiKt10TruthJetsRec",
@@ -205,7 +205,7 @@ def addTruthJets(kernel=None, decorationDressing=None):
                                                                             JetRadius = 1.0,
                                                                             JetBuilder = DFCommon_jbld,
                                                                             GhostArea = 0.01,
-                                                                            PtMin = threshold
+                                                                            PtMin = 50000.
                                                                             )
             from JetSubStructureMomentTools.JetSubStructureMomentToolsConf import EnergyCorrelatorTool
             DFCommon_EnCorr = EnergyCorrelatorTool("DFCommon_EnCorr", Beta = 1.0)