From 9c441392f482bce994c24124939f98b9958d6605 Mon Sep 17 00:00:00 2001
From: Stefano Argiro <Stefano.Argiro@cern.ch>
Date: Fri, 22 Nov 2013 18:04:52 +0100
Subject: [PATCH] add configurable cut on clusters to be added to the event

---
 .../interface/PreshowerPhiClusterProducer.h           |  2 ++
 .../src/PreshowerPhiClusterProducer.cc                | 11 +++++++++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/RecoEcal/EgammaClusterProducers/interface/PreshowerPhiClusterProducer.h b/RecoEcal/EgammaClusterProducers/interface/PreshowerPhiClusterProducer.h
index 07d14c598a17f..6d2abd6f004d9 100644
--- a/RecoEcal/EgammaClusterProducers/interface/PreshowerPhiClusterProducer.h
+++ b/RecoEcal/EgammaClusterProducers/interface/PreshowerPhiClusterProducer.h
@@ -64,6 +64,8 @@ class PreshowerPhiClusterProducer : public edm::EDProducer {
   double aEta_[4];
   double bEta_[4];
 
+  double etThresh_;
+
   PreshowerPhiClusterAlgo * presh_algo; // algorithm doing the real work
    // The set of used DetID's
   //std::set<DetId> used_strips;
diff --git a/RecoEcal/EgammaClusterProducers/src/PreshowerPhiClusterProducer.cc b/RecoEcal/EgammaClusterProducers/src/PreshowerPhiClusterProducer.cc
index 0564b79148bd5..0700a4a928b81 100644
--- a/RecoEcal/EgammaClusterProducers/src/PreshowerPhiClusterProducer.cc
+++ b/RecoEcal/EgammaClusterProducers/src/PreshowerPhiClusterProducer.cc
@@ -65,6 +65,8 @@ PreshowerPhiClusterProducer::PreshowerPhiClusterProducer(const edm::ParameterSet
   esPhiClusterDeltaEta_      = ps.getParameter<double>("esPhiClusterDeltaEta");
   esPhiClusterDeltaPhi_      = ps.getParameter<double>("esPhiClusterDeltaPhi");
 
+  etThresh_                  = ps.getParameter<double>("etThresh");
+
   presh_algo = new PreshowerPhiClusterAlgo(esStripECut);
 }
 
@@ -250,8 +252,13 @@ void PreshowerPhiClusterProducer::produce(edm::Event& evt, const edm::EventSetup
     else if (condP1 == 0 && condP2 == 1) sc.setPreshowerPlanesStatus(2);
     else if (condP1 == 0 && condP2 == 0) sc.setPreshowerPlanesStatus(3);
 
-    new_SC.push_back(sc);
-    //cout<<"result : "<<sc.energy()<<" "<<it_super->energy()<<" "<<deltaE<<" "<<e1*mip_<<" "<<e2*mip_<<endl;    
+    if (etThresh_>0){ // calling postion().theta can be expensive
+        if (sc.energy()*sin(sc.position().theta())>etThresh_ ) 
+            new_SC.push_back(sc);
+    } else {
+        new_SC.push_back(sc);
+    }
+    
   } // end of cycle over SCs
   
   // copy the preshower clusters into collections and put in the Event: