Add flag to drop quality of low-pt TkMuons without an SA match

L1Trigger/Configuration/python/SimL1Emulator_cff.py

@@ -144,6 +144,11 @@
 _phase2_siml1emulator.add( l1tTkMuonsGmt )
 _phase2_siml1emulator.add( l1tSAMuonsGmt )
 
+## fix for low-pt muons, this collection is a copy of the l1tTkMuonsGmt collection 
+## in which we only keep those low pt muons with an SA muon associated to it. 
+l1tTkMuonsGmtLowPtFix = l1tGMTFilteredMuons.clone()
+_phase2_siml1emulator.add( l1tTkMuonsGmtLowPtFix )
+
 # Tracker Objects
 # ########################################################################
 from L1Trigger.L1TTrackMatch.l1tTrackJets_cfi import *

L1Trigger/Phase2L1GMT/plugins/Phase2L1TGMTFilter.cc

@@ -0,0 +1,102 @@
+#include <memory>
+#include "FWCore/Framework/interface/Frameworkfwd.h"
+#include "FWCore/Framework/interface/stream/EDProducer.h"
+
+#include "FWCore/Framework/interface/Event.h"
+#include "FWCore/Framework/interface/MakerMacros.h"
+
+#include "FWCore/ParameterSet/interface/ParameterSet.h"
+#include "FWCore/Utilities/interface/StreamID.h"
+#include "DataFormats/L1TMuonPhase2/interface/TrackerMuon.h"
+#include "DataFormats/L1TMuonPhase2/interface/SAMuon.h"
+#include "Node.h"
+
+//
+// class declaration
+//
+using namespace Phase2L1GMT;
+using namespace l1t;
+
+class Phase2L1TGMTFilter : public edm::stream::EDProducer<> {
+public:
+  explicit Phase2L1TGMTFilter(const edm::ParameterSet&);
+  ~Phase2L1TGMTFilter() override;
+
+  static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);
+
+private:
+  void beginStream(edm::StreamID) override;
+  void produce(edm::Event&, const edm::EventSetup&) override;
+  void endStream() override;
+  edm::EDGetTokenT<std::vector<l1t::TrackerMuon> > srcMuons_;
+  bool applyLowPtFilter_;
+  int ptBarrelMin_;
+  int ptEndcapMin_;
+};
+
+Phase2L1TGMTFilter::Phase2L1TGMTFilter(const edm::ParameterSet& iConfig)
+    : srcMuons_(consumes<std::vector<l1t::TrackerMuon> >(iConfig.getParameter<edm::InputTag>("srcMuons"))),
+      applyLowPtFilter_(iConfig.getParameter<bool>("applyLowPtFilter")),
+      ptBarrelMin_(iConfig.getParameter<int>("ptBarrelMin")),
+      ptEndcapMin_(iConfig.getParameter<int>("ptEndcapMin")) {
+  produces<std::vector<l1t::TrackerMuon> >("l1tTkMuonsGmtLowPtFix").setBranchAlias("tkMuLowPtFix");
+}
+
+Phase2L1TGMTFilter::~Phase2L1TGMTFilter() {
+  // do anything here that needs to be done at destruction time
+  // (e.g. close files, deallocate resources etc.)
+}
+
+//
+// member functions
+//
+
+// ------------ method called to produce the data  ------------
+void Phase2L1TGMTFilter::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) {
+  using namespace edm;
+  Handle<std::vector<l1t::TrackerMuon> > muonHandle;
+  iEvent.getByToken(srcMuons_, muonHandle);
+
+  std::vector<l1t::TrackerMuon> out;
+
+  for (uint i = 0; i < muonHandle->size(); ++i) {
+    auto mu = muonHandle->at(i);
+    bool noSAMatch = true;
+    if (applyLowPtFilter_) {
+      if ((fabs(mu.phEta()) < 0.9 && mu.phPt() < ptBarrelMin_) ||
+          (fabs(mu.phEta()) > 0.9 && mu.phPt() < ptEndcapMin_)) {
+        // if quality is already set to 0 don't continue the loop.
+        for (const auto& r : mu.muonRef()) {
+          if (r.isNonnull()) {
+            noSAMatch = false;
+            break;
+          }
+        }
+        if (noSAMatch)
+          mu.setHwQual(0);
+      }
+    }
+    out.push_back(mu);  // store all muons otherwise
+  }
+
+  // store results
+  std::unique_ptr<std::vector<l1t::TrackerMuon> > out1 = std::make_unique<std::vector<l1t::TrackerMuon> >(out);
+  iEvent.put(std::move(out1), "l1tTkMuonsGmtLowPtFix");
+}
+
+// ------------ method called once each stream before processing any runs, lumis or events  ------------
+void Phase2L1TGMTFilter::beginStream(edm::StreamID) {}
+
+// ------------ method called once each stream after processing all runs, lumis and events  ------------
+void Phase2L1TGMTFilter::endStream() {}
+
+void Phase2L1TGMTFilter::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
+  //The following says we do not know what parameters are allowed so do no validation
+  // Please change this to state exactly what you do use, even if it is no parameters
+  edm::ParameterSetDescription desc;
+  desc.setUnknown();
+  descriptions.addDefault(desc);
+}
+
+//define this as a plug-in
+DEFINE_FWK_MODULE(Phase2L1TGMTFilter);

L1Trigger/Phase2L1GMT/python/gmt_cfi.py

@@ -76,6 +76,15 @@
 
 )
 
+
+l1tGMTFilteredMuons = cms.EDProducer('Phase2L1TGMTFilter',
+                    srcMuons = cms.InputTag("l1tTkMuonsGmt",""),
+                    applyLowPtFilter = cms.bool(True),
+                    ptBarrelMin = cms.int32(8),
+                    ptEndcapMin = cms.int32(8)
+)
+
+
 l1tStandaloneMuons = cms.EDProducer('Phase2L1TGMTSAMuonProducer',
                                  muonToken  = cms.InputTag('simGmtStage2Digis'),
                                  Nprompt    = cms.uint32(12),