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GEMSimpleModel Class Reference

#include <GEMSimpleModel.h>

Inheritance diagram for GEMSimpleModel:
GEMDigiModel

Public Member Functions

 GEMSimpleModel (const edm::ParameterSet &)
 
int getSimHitBx (const PSimHit *, CLHEP::HepRandomEngine *)
 
void setup ()
 
std::vector< std::pair< int,
int > > 
simulateClustering (const GEMEtaPartition *, const PSimHit *, const int, CLHEP::HepRandomEngine *) override
 
void simulateNoise (const GEMEtaPartition *, CLHEP::HepRandomEngine *) override
 
void simulateSignal (const GEMEtaPartition *, const edm::PSimHitContainer &, CLHEP::HepRandomEngine *) override
 
 ~GEMSimpleModel ()
 
- Public Member Functions inherited from GEMDigiModel
void fillDigis (int rollDetId, GEMDigiCollection &)
 
const GEMGeometrygetGeometry ()
 
void setGeometry (const GEMGeometry *geom)
 
const StripDigiSimLinksstripDigiSimLinks () const
 
virtual ~GEMDigiModel ()
 

Private Attributes

double averageEfficiency_
 
double averageNoiseRate_
 
double averageShapingTime_
 
int bxwidth_
 
std::vector< double > clsParametrization_
 
double constNeuGE11_
 
bool cosmics_
 
bool digitizeOnlyMuons_
 
bool doBkgNoise_
 
bool doNoiseCLS_
 
bool fixedRollRadius_
 
std::vector< double > GE11ElecBkgParams_
 
std::vector< double > GE21ElecBkgParams_
 
std::vector< double > GE21NeuBkgParams_
 
int maxBunch_
 
int minBunch_
 
double minPabsNoiseCLS_
 
double scaleLumi_
 
double signalPropagationSpeed_
 
bool simulateElectronBkg_
 
bool simulateIntrinsicNoise_
 
double slopeNeuGE11_
 
double timeJitter_
 
double timeResolution_
 

Additional Inherited Members

- Public Types inherited from GEMDigiModel
typedef edm::DetSet
< StripDigiSimLink
StripDigiSimLinks
 
- Protected Types inherited from GEMDigiModel
typedef std::multimap
< std::pair< unsigned int, int >
, const PSimHit *, std::less
< std::pair< unsigned int, int > > > 
DetectorHitMap
 
- Protected Member Functions inherited from GEMDigiModel
void addLinks (unsigned int strip, int bx)
 creates links from Digi to SimTrack More...
 
 GEMDigiModel (const edm::ParameterSet &)
 
- Protected Attributes inherited from GEMDigiModel
DetectorHitMap detectorHitMap_
 
const GEMGeometrygeometry_
 
StripDigiSimLinks stripDigiSimLinks_
 
std::set< std::pair< int, int > > strips_
 

Detailed Description

Class for the GEM strip response simulation based on a very simple model

Author
Sven Dildick by Roumyana Hadjiiska

Definition at line 22 of file GEMSimpleModel.h.

Constructor & Destructor Documentation

GEMSimpleModel::GEMSimpleModel ( const edm::ParameterSet config)

Definition at line 26 of file GEMSimpleModel.cc.

26  :
27 GEMDigiModel(config)
28 , averageEfficiency_(config.getParameter<double> ("averageEfficiency"))
29 , averageShapingTime_(config.getParameter<double> ("averageShapingTime"))
30 , timeResolution_(config.getParameter<double> ("timeResolution"))
31 , timeJitter_(config.getParameter<double> ("timeJitter"))
32 , averageNoiseRate_(config.getParameter<double> ("averageNoiseRate"))
33 //, averageClusterSize_(config.getParameter<double> ("averageClusterSize"))
34 , clsParametrization_(config.getParameter<std::vector<double>>("clsParametrization"))
35 , signalPropagationSpeed_(config.getParameter<double> ("signalPropagationSpeed"))
36 , cosmics_(config.getParameter<bool> ("cosmics"))
37 , bxwidth_(config.getParameter<int> ("bxwidth"))
38 , minBunch_(config.getParameter<int> ("minBunch"))
39 , maxBunch_(config.getParameter<int> ("maxBunch"))
40 , digitizeOnlyMuons_(config.getParameter<bool> ("digitizeOnlyMuons"))
41 , doBkgNoise_(config.getParameter<bool> ("doBkgNoise"))
42 , doNoiseCLS_(config.getParameter<bool> ("doNoiseCLS"))
43 , fixedRollRadius_(config.getParameter<bool> ("fixedRollRadius"))
44 , scaleLumi_(config.getParameter<double> ("scaleLumi"))
45 , simulateElectronBkg_(config.getParameter<bool> ("simulateElectronBkg"))
46 , constNeuGE11_(config.getParameter<double> ("constNeuGE11"))
47 , slopeNeuGE11_(config.getParameter<double> ("slopeNeuGE11"))
48 , GE21NeuBkgParams_(config.getParameter<std::vector<double>>("GE21NeuBkgParams"))
49 , GE11ElecBkgParams_(config.getParameter<std::vector<double>>("GE11ElecBkgParams"))
50 , GE21ElecBkgParams_(config.getParameter<std::vector<double>>("GE21ElecBkgParams"))
51 
52 {
53 
54 }
T getParameter(std::string const &) const
std::vector< double > clsParametrization_
double signalPropagationSpeed_
double averageNoiseRate_
double averageEfficiency_
std::vector< double > GE11ElecBkgParams_
double constNeuGE11_
GEMDigiModel(const edm::ParameterSet &)
Definition: GEMDigiModel.h:58
bool simulateElectronBkg_
double averageShapingTime_
std::vector< double > GE21ElecBkgParams_
double timeResolution_
std::vector< double > GE21NeuBkgParams_
double slopeNeuGE11_
GEMSimpleModel::~GEMSimpleModel ( )

Definition at line 56 of file GEMSimpleModel.cc.

57 {
58 }

Member Function Documentation

int GEMSimpleModel::getSimHitBx ( const PSimHit simhit,
CLHEP::HepRandomEngine *  engine 
)

Definition at line 88 of file GEMSimpleModel.cc.

References averageShapingTime_, bxwidth_, cosmics_, gather_cfg::cout, debug, PSimHit::detUnitId(), alignCSCRings::e, GEMGeometry::etaPartition(), edm::hlt::Exception, GEMDigiModel::geometry_, PSimHit::localPosition(), signalPropagationSpeed_, mathSSE::sqrt(), timeJitter_, PSimHit::timeOfFlight(), timeResolution_, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by simulateSignal().

89 {
90  int bx = -999;
91  const LocalPoint simHitPos(simhit->localPosition());
92  const float tof(simhit->timeOfFlight());
93  // random Gaussian time correction due to electronics jitter
94  float randomJitterTime = CLHEP::RandGaussQ::shoot(engine, 0., timeJitter_);
95 
96  const GEMDetId id(simhit->detUnitId());
97  const GEMEtaPartition* roll(geometry_->etaPartition(id));
98 
99  if (!roll)
100  {
101  throw cms::Exception("Geometry")<< "GEMSimpleModel::getSimHitBx() - GEM simhit id does not match any GEM roll id: " << id << "\n";
102  return 999;
103  }
104 
105  if (roll->id().region() == 0)
106  {
107  throw cms::Exception("Geometry") << "GEMSimpleModel::getSimHitBx() - this GEM id is from barrel, which cannot happen: " << roll->id() << "\n";
108  }
109 
110  // signal propagation speed in vacuum in [m/s]
111  const double cspeed = 299792458;
112  const int nstrips = roll->nstrips();
113  float middleStrip = nstrips/2.;
114  LocalPoint middleOfRoll = roll->centreOfStrip(middleStrip);
115  GlobalPoint globMiddleRol = roll->toGlobal(middleOfRoll);
116  double muRadius = sqrt(globMiddleRol.x()*globMiddleRol.x() + globMiddleRol.y()*globMiddleRol.y() +globMiddleRol.z()*globMiddleRol.z());
117  double timeCalibrationOffset_ = (muRadius *1e+9)/(cspeed*1e+2); //[ns]
118 
119  const TrapezoidalStripTopology* top(dynamic_cast<const TrapezoidalStripTopology*> (&(roll->topology())));
120  const float halfStripLength(0.5 * top->stripLength());
121  const float distanceFromEdge(halfStripLength - simHitPos.y());
122 
123  // signal propagation speed in material in [cm/ns]
124  double signalPropagationSpeedTrue = signalPropagationSpeed_ * cspeed * 1e+2 * 1e-9;
125 
126  // average time for the signal to propagate from the SimHit to the top of a strip
127  const float averagePropagationTime(distanceFromEdge / signalPropagationSpeedTrue);
128  // random Gaussian time correction due to the finite timing resolution of the detector
129  float randomResolutionTime = CLHEP::RandGaussQ::shoot(engine, 0., timeResolution_);
130 
131  const float simhitTime(tof + averageShapingTime_ + randomResolutionTime + averagePropagationTime + randomJitterTime);
132 
133  float referenceTime = 0.;
134  referenceTime = timeCalibrationOffset_ + halfStripLength / signalPropagationSpeedTrue + averageShapingTime_;
135  const float timeDifference(cosmics_ ? (simhitTime - referenceTime) / COSMIC_PAR : simhitTime - referenceTime);
136 
137  // assign the bunch crossing
138  bx = static_cast<int> (std::round((timeDifference) / bxwidth_));
139 
140  // check time
141  const bool debug(false);
142  if (debug)
143  {
144  std::cout << "checktime " << "bx = " << bx << "\tdeltaT = " << timeDifference << "\tsimT = " << simhitTime
145  << "\trefT = " << referenceTime << "\ttof = " << tof << "\tavePropT = " << averagePropagationTime
146  << "\taveRefPropT = " << halfStripLength / signalPropagationSpeedTrue << std::endl;
147  }
148  return bx;
149 }
double signalPropagationSpeed_
T y() const
Definition: PV3DBase.h:63
const GEMEtaPartition * etaPartition(GEMDetId id) const
Return a GEMEtaPartition given its id.
Definition: GEMGeometry.cc:103
float timeOfFlight() const
Definition: PSimHit.h:69
Local3DPoint localPosition() const
Definition: PSimHit.h:44
T sqrt(T t)
Definition: SSEVec.h:48
T z() const
Definition: PV3DBase.h:64
#define debug
Definition: HDRShower.cc:19
const GEMGeometry * geometry_
Definition: GEMDigiModel.h:60
double averageShapingTime_
double timeResolution_
tuple cout
Definition: gather_cfg.py:121
T x() const
Definition: PV3DBase.h:62
unsigned int detUnitId() const
Definition: PSimHit.h:93
void GEMSimpleModel::setup ( void  )
virtual

Implements GEMDigiModel.

Definition at line 60 of file GEMSimpleModel.cc.

61 {
62  return;
63 }
std::vector< std::pair< int, int > > GEMSimpleModel::simulateClustering ( const GEMEtaPartition roll,
const PSimHit simHit,
const int  bx,
CLHEP::HepRandomEngine *  engine 
)
overridevirtual

Implements GEMDigiModel.

Definition at line 332 of file GEMSimpleModel.cc.

References funct::abs(), averageEfficiency_, GEMEtaPartition::centreOfStrip(), Topology::channel(), clsParametrization_, i, PSimHit::localPosition(), minPabsNoiseCLS_, GEMEtaPartition::nstrips(), PSimHit::pabs(), PSimHit::particleType(), PV3DBase< T, PVType, FrameType >::phi(), GEMEtaPartition::specificTopology(), GeomDet::toGlobal(), and ecaldqm::topology().

Referenced by simulateSignal().

334 {
335  // const Topology& topology(roll->specs()->topology());
336  const StripTopology& topology = roll->specificTopology();
337  // const LocalPoint& entry(simHit->entryPoint());
338  const LocalPoint& hit_position(simHit->localPosition());
339  const int nstrips(roll->nstrips());
340 
341  int centralStrip = 0;
342  if (!(topology.channel(hit_position) + 1 > nstrips))
343  centralStrip = topology.channel(hit_position) + 1;
344  else
345  centralStrip = topology.channel(hit_position);
346 
347  GlobalPoint pointSimHit = roll->toGlobal(hit_position);
348  GlobalPoint pointDigiHit = roll->toGlobal(roll->centreOfStrip(centralStrip));
349  double deltaphi = pointSimHit.phi() - pointDigiHit.phi();
350 
351  // Add central digi to cluster vector
352  std::vector<std::pair<int, int> > cluster_;
353  cluster_.clear();
354  cluster_.push_back(std::pair<int, int>(centralStrip, bx));
355 
356  // get the cluster size
357  int clusterSize = 0;
358  double randForCls = CLHEP::RandFlat::shoot(engine);
359 
360  if(randForCls <= clsParametrization_[0] && randForCls >= 0.)
361  clusterSize = 1;
362  else if(randForCls <= clsParametrization_[1] && randForCls > clsParametrization_[0])
363  clusterSize = 2;
364  else if(randForCls <= clsParametrization_[2] && randForCls > clsParametrization_[1])
365  clusterSize = 3;
366  else if(randForCls <= clsParametrization_[3] && randForCls > clsParametrization_[2])
367  clusterSize = 4;
368  else if(randForCls <= clsParametrization_[4] && randForCls > clsParametrization_[3])
369  clusterSize = 5;
370  else if(randForCls <= clsParametrization_[5] && randForCls > clsParametrization_[4])
371  clusterSize = 6;
372  else if(randForCls <= clsParametrization_[6] && randForCls > clsParametrization_[5])
373  clusterSize = 7;
374  else if(randForCls <= clsParametrization_[7] && randForCls > clsParametrization_[6])
375  clusterSize = 8;
376  else if(randForCls <= clsParametrization_[8] && randForCls > clsParametrization_[7])
377  clusterSize = 9;
378 
379  if (abs(simHit->particleType()) != 13 && fabs(simHit->pabs()) < minPabsNoiseCLS_)
380  return cluster_;
381 
382  //odd cls
383  if (clusterSize % 2 != 0)
384  {
385  int clsR = (clusterSize - 1) / 2;
386  for (int i = 1; i <= clsR; ++i)
387  {
388  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - i > 0))
389  cluster_.push_back(std::pair<int, int>(centralStrip - i, bx));
390  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + i <= nstrips))
391  cluster_.push_back(std::pair<int, int>(centralStrip + i, bx));
392  }
393  }
394  //even cls
395  if (clusterSize % 2 == 0)
396  {
397  int clsR = (clusterSize - 2) / 2;
398  if (deltaphi <= 0)
399  {
400  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - 1 > 0))
401  cluster_.push_back(std::pair<int, int>(centralStrip - 1, bx));
402  for (int i = 1; i <= clsR; ++i)
403  {
404  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - 1 - i > 0))
405  cluster_.push_back(std::pair<int, int>(centralStrip - 1 - i, bx));
406  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + i <= nstrips))
407  cluster_.push_back(std::pair<int, int>(centralStrip + i, bx));
408  }
409  }
410  else
411  {
412  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + 1 <= nstrips))
413  cluster_.push_back(std::pair<int, int>(centralStrip + 1, bx));
414  for (int i = 1; i <= clsR; ++i)
415  {
416  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + 1 + i <= nstrips))
417  cluster_.push_back(std::pair<int, int>(centralStrip + 1 + i, bx));
418  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - i < 0))
419  cluster_.push_back(std::pair<int, int>(centralStrip - i, bx));
420  }
421  }
422  }
423  return cluster_;
424 
425 }
double minPabsNoiseCLS_
std::vector< double > clsParametrization_
int i
Definition: DBlmapReader.cc:9
CaloTopology const * topology(0)
GlobalPoint toGlobal(const Local2DPoint &lp) const
Conversion to the global R.F. from the R.F. of the GeomDet.
Definition: GeomDet.h:52
Geom::Phi< T > phi() const
Definition: PV3DBase.h:69
LocalPoint centreOfStrip(int strip) const
int nstrips() const
number of readout strips in partition
Local3DPoint localPosition() const
Definition: PSimHit.h:44
double averageEfficiency_
Abs< T >::type abs(const T &t)
Definition: Abs.h:22
virtual int channel(const LocalPoint &p) const =0
const StripTopology & specificTopology() const
float pabs() const
fast and more accurate access to momentumAtEntry().mag()
Definition: PSimHit.h:63
int particleType() const
Definition: PSimHit.h:85
void GEMSimpleModel::simulateNoise ( const GEMEtaPartition roll,
CLHEP::HepRandomEngine *  engine 
)
overridevirtual

Implements GEMDigiModel.

Definition at line 151 of file GEMSimpleModel.cc.

References averageEfficiency_, averageNoiseRate_, bxwidth_, clsParametrization_, constNeuGE11_, doBkgNoise_, doNoiseCLS_, alignCSCRings::e, edm::hlt::Exception, fixedRollRadius_, GE11ElecBkgParams_, GE21ElecBkgParams_, GE21NeuBkgParams_, i, GEMEtaPartition::id(), j, roll_playback::k, maxBunch_, minBunch_, GEMEtaPartition::nstrips(), GEMEtaPartition::pitch(), scaleLumi_, simulateElectronBkg_, simulateIntrinsicNoise_, slopeNeuGE11_, GEMDigiModel::strips_, and GEMEtaPartition::topology().

152 {
153  if (!doBkgNoise_)
154  return;
155 
156  const GEMDetId gemId(roll->id());
157  const int nstrips(roll->nstrips());
158  double trArea(0.0);
159  double trStripArea(0.0);
160 
161  if (gemId.region() == 0)
162  {
163  throw cms::Exception("Geometry")
164  << "GEMSynchronizer::simulateNoise() - this GEM id is from barrel, which cannot happen.";
165  }
166  const TrapezoidalStripTopology* top_(dynamic_cast<const TrapezoidalStripTopology*> (&(roll->topology())));
167  const float striplength(top_->stripLength());
168  trStripArea = (roll->pitch()) * striplength;
169  trArea = trStripArea * nstrips;
170  const int nBxing(maxBunch_ - minBunch_ + 1);
171 
172  const float rollRadius(fixedRollRadius_ ? top_->radius() :
173  top_->radius() + CLHEP::RandFlat::shoot(engine, -1.*top_->stripLength()/2., top_->stripLength()/2.));
174 
175  //calculate noise from model
176  double averageNeutralNoiseRatePerRoll = 0.;
177  double averageNoiseElectronRatePerRoll = 0.;
178  double averageNoiseRatePerRoll = 0.;
179 
180  if(gemId.station() == 1)
181  {
182 //simulate neutral background for GE1/1
183  averageNeutralNoiseRatePerRoll = constNeuGE11_ * TMath::Exp(slopeNeuGE11_*rollRadius);
184 
185 //simulate eletron background for GE1/1
186 //the product is faster than Power or pow:
188  averageNoiseElectronRatePerRoll = GE11ElecBkgParams_[0]
189  + GE11ElecBkgParams_[1]*rollRadius
190  + GE11ElecBkgParams_[2]*rollRadius*rollRadius
191  + GE11ElecBkgParams_[3]*rollRadius*rollRadius*rollRadius;
192 
193  averageNoiseRatePerRoll = averageNeutralNoiseRatePerRoll + averageNoiseElectronRatePerRoll;
194  }
195 
196  if(gemId.station() == 2 || gemId.station() == 3)
197  {
198 //simulate neutral background for GE2/1
199  averageNeutralNoiseRatePerRoll = GE21NeuBkgParams_[0]
200  + GE21NeuBkgParams_[1]*rollRadius
201  + GE21NeuBkgParams_[2]*rollRadius*rollRadius
202  + GE21NeuBkgParams_[3]*rollRadius*rollRadius*rollRadius
203  + GE21NeuBkgParams_[4]*rollRadius*rollRadius*rollRadius*rollRadius
204  + GE21NeuBkgParams_[5]*rollRadius*rollRadius*rollRadius*rollRadius*rollRadius;
205 
206 
207 //simulate eletron background for GE2/1
209  averageNoiseElectronRatePerRoll = GE21ElecBkgParams_[0]
210  + GE21ElecBkgParams_[1]*rollRadius
211  + GE21ElecBkgParams_[2]*rollRadius*rollRadius
212  + GE21ElecBkgParams_[3]*rollRadius*rollRadius*rollRadius
213  + GE21ElecBkgParams_[4]*rollRadius*rollRadius*rollRadius*rollRadius
214  + GE21ElecBkgParams_[5]*rollRadius*rollRadius*rollRadius*rollRadius*rollRadius
215  + GE21ElecBkgParams_[6]*rollRadius*rollRadius*rollRadius*rollRadius*rollRadius*rollRadius;
216 
217  averageNoiseRatePerRoll = averageNeutralNoiseRatePerRoll + averageNoiseElectronRatePerRoll;
218  }
219 
220  //simulate intrinsic noise
222  {
223  const double aveIntrinsicNoisePerStrip(averageNoiseRate_ * nBxing * bxwidth_ * trStripArea * 1.0e-9);
224  for(int j = 0; j < nstrips; ++j)
225  {
226  CLHEP::RandPoissonQ randPoissonQ(*engine, aveIntrinsicNoisePerStrip);
227  const int n_intrHits(randPoissonQ.fire());
228 
229  for (int k = 0; k < n_intrHits; k++ )
230  {
231  const int time_hit(static_cast<int>(CLHEP::RandFlat::shoot(engine, nBxing)) + minBunch_);
232  std::pair<int, int> digi(k+1,time_hit);
233  strips_.insert(digi);
234  }
235  }
236  }//end simulate intrinsic noise
237 
238  //simulate bkg contribution
239  const double averageNoise(averageNoiseRatePerRoll * nBxing * bxwidth_ * trArea * 1.0e-9 * scaleLumi_);
240  CLHEP::RandPoissonQ randPoissonQ(*engine, averageNoise);
241  const int n_hits(randPoissonQ.fire());
242 
243  for (int i = 0; i < n_hits; ++i)
244  {
245  const int centralStrip(static_cast<int> (CLHEP::RandFlat::shoot(engine, 1, nstrips)));
246  const int time_hit(static_cast<int>(CLHEP::RandFlat::shoot(engine, nBxing)) + minBunch_);
247 
248  if (doNoiseCLS_)
249  {
250  std::vector<std::pair<int, int> > cluster_;
251  cluster_.clear();
252  cluster_.push_back(std::pair<int, int>(centralStrip, time_hit));
253 
254  int clusterSize = 0;
255  double randForCls = CLHEP::RandFlat::shoot(engine);
256 
257  if(randForCls <= clsParametrization_[0] && randForCls >= 0.)
258  clusterSize = 1;
259  else if(randForCls <= clsParametrization_[1] && randForCls > clsParametrization_[0])
260  clusterSize = 2;
261  else if(randForCls <= clsParametrization_[2] && randForCls > clsParametrization_[1])
262  clusterSize = 3;
263  else if(randForCls <= clsParametrization_[3] && randForCls > clsParametrization_[2])
264  clusterSize = 4;
265  else if(randForCls <= clsParametrization_[4] && randForCls > clsParametrization_[3])
266  clusterSize = 5;
267  else if(randForCls <= clsParametrization_[5] && randForCls > clsParametrization_[4])
268  clusterSize = 6;
269  else if(randForCls <= clsParametrization_[6] && randForCls > clsParametrization_[5])
270  clusterSize = 7;
271  else if(randForCls <= clsParametrization_[7] && randForCls > clsParametrization_[6])
272  clusterSize = 8;
273  else if(randForCls <= clsParametrization_[8] && randForCls > clsParametrization_[7])
274  clusterSize = 9;
275 
276  //odd cls
277  if (clusterSize % 2 != 0)
278  {
279  int clsR = (clusterSize - 1) / 2;
280  for (int i = 1; i <= clsR; ++i)
281  {
282  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - i > 0))
283  cluster_.push_back(std::pair<int, int>(centralStrip - i, time_hit));
284  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + i <= nstrips))
285  cluster_.push_back(std::pair<int, int>(centralStrip + i, time_hit));
286  }
287  }
288  //even cls
289  if (clusterSize % 2 == 0)
290  {
291  int clsR = (clusterSize - 2) / 2;
292  if(CLHEP::RandFlat::shoot(engine) < 0.5)
293  {
294  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - 1 > 0))
295  cluster_.push_back(std::pair<int, int>(centralStrip - 1, time_hit));
296  for (int i = 1; i <= clsR; ++i)
297  {
298  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - 1 - i > 0))
299  cluster_.push_back(std::pair<int, int>(centralStrip - 1 - i, time_hit));
300  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + i <= nstrips))
301  cluster_.push_back(std::pair<int, int>(centralStrip + i, time_hit));
302  }
303  }
304 
305  else
306  {
307  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + 1 <= nstrips))
308  cluster_.push_back(std::pair<int, int>(centralStrip + 1, time_hit));
309  for (int i = 1; i <= clsR; ++i)
310  {
311  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip + 1 + i <= nstrips))
312  cluster_.push_back(std::pair<int, int>(centralStrip + 1 + i, time_hit));
313  if (CLHEP::RandFlat::shoot(engine) < averageEfficiency_ && (centralStrip - i < 0))
314  cluster_.push_back(std::pair<int, int>(centralStrip - i, time_hit));
315  }
316  }
317  }
318  for(auto & digi : cluster_)
319  {
320  strips_.insert(digi);
321  }
322  }//end doNoiseCLS_
323  else
324  {
325  std::pair<int, int> digi(centralStrip, time_hit);
326  strips_.insert(digi);
327  }
328  }
329  return;
330 }
std::vector< double > clsParametrization_
int i
Definition: DBlmapReader.cc:9
double averageNoiseRate_
const Topology & topology() const
GEMDetId id() const
int nstrips() const
number of readout strips in partition
bool simulateIntrinsicNoise_
double averageEfficiency_
std::vector< double > GE11ElecBkgParams_
int j
Definition: DBlmapReader.cc:9
double constNeuGE11_
float pitch() const
bool simulateElectronBkg_
std::set< std::pair< int, int > > strips_
Definition: GEMDigiModel.h:62
std::vector< double > GE21ElecBkgParams_
std::vector< double > GE21NeuBkgParams_
double slopeNeuGE11_
void GEMSimpleModel::simulateSignal ( const GEMEtaPartition roll,
const edm::PSimHitContainer simHits,
CLHEP::HepRandomEngine *  engine 
)
overridevirtual

Implements GEMDigiModel.

Definition at line 65 of file GEMSimpleModel.cc.

References funct::abs(), averageEfficiency_, edm::DetSet< T >::clear(), GEMDigiModel::detectorHitMap_, digitizeOnlyMuons_, getSimHitBx(), GEMEtaPartition::id(), DetId::rawId(), simulateClustering(), GEMDigiModel::stripDigiSimLinks_, and GEMDigiModel::strips_.

66 {
68  detectorHitMap_.clear();
70 
71  for (edm::PSimHitContainer::const_iterator hit = simHits.begin(); hit != simHits.end(); ++hit)
72  {
73  if (std::abs(hit->particleType()) != 13 && digitizeOnlyMuons_)
74  continue;
75 
76  // Check GEM efficiency
77  if (CLHEP::RandFlat::shoot(engine) > averageEfficiency_) continue;
78  const int bx(getSimHitBx(&(*hit), engine));
79  const std::vector<std::pair<int, int> > cluster(simulateClustering(roll, &(*hit), bx, engine));
80  for (auto & digi : cluster)
81  {
83  strips_.insert(digi);
84  }
85  }
86 }
int getSimHitBx(const PSimHit *, CLHEP::HepRandomEngine *)
GEMDetId id() const
uint32_t rawId() const
get the raw id
Definition: DetId.h:43
double averageEfficiency_
Abs< T >::type abs(const T &t)
Definition: Abs.h:22
std::vector< std::pair< int, int > > simulateClustering(const GEMEtaPartition *, const PSimHit *, const int, CLHEP::HepRandomEngine *) override
Container::value_type value_type
tuple simHits
Definition: trackerHits.py:16
std::set< std::pair< int, int > > strips_
Definition: GEMDigiModel.h:62
void clear()
Definition: DetSet.h:69
DetectorHitMap detectorHitMap_
Definition: GEMDigiModel.h:74
StripDigiSimLinks stripDigiSimLinks_
Definition: GEMDigiModel.h:75
edm::DetSet< StripDigiSimLink > StripDigiSimLinks
Definition: GEMDigiModel.h:35

Member Data Documentation

double GEMSimpleModel::averageEfficiency_
private

Definition at line 43 of file GEMSimpleModel.h.

Referenced by simulateClustering(), simulateNoise(), and simulateSignal().

double GEMSimpleModel::averageNoiseRate_
private

Definition at line 47 of file GEMSimpleModel.h.

Referenced by simulateNoise().

double GEMSimpleModel::averageShapingTime_
private

Definition at line 44 of file GEMSimpleModel.h.

Referenced by getSimHitBx().

int GEMSimpleModel::bxwidth_
private

Definition at line 52 of file GEMSimpleModel.h.

Referenced by getSimHitBx(), and simulateNoise().

std::vector<double> GEMSimpleModel::clsParametrization_
private

Definition at line 49 of file GEMSimpleModel.h.

Referenced by simulateClustering(), and simulateNoise().

double GEMSimpleModel::constNeuGE11_
private

Definition at line 63 of file GEMSimpleModel.h.

Referenced by simulateNoise().

bool GEMSimpleModel::cosmics_
private

Definition at line 51 of file GEMSimpleModel.h.

Referenced by getSimHitBx().

bool GEMSimpleModel::digitizeOnlyMuons_
private

Definition at line 55 of file GEMSimpleModel.h.

Referenced by simulateSignal().

bool GEMSimpleModel::doBkgNoise_
private

Definition at line 56 of file GEMSimpleModel.h.

Referenced by simulateNoise().

bool GEMSimpleModel::doNoiseCLS_
private

Definition at line 57 of file GEMSimpleModel.h.

Referenced by simulateNoise().

bool GEMSimpleModel::fixedRollRadius_
private

Definition at line 58 of file GEMSimpleModel.h.

Referenced by simulateNoise().

std::vector<double> GEMSimpleModel::GE11ElecBkgParams_
private

Definition at line 66 of file GEMSimpleModel.h.

Referenced by simulateNoise().

std::vector<double> GEMSimpleModel::GE21ElecBkgParams_
private

Definition at line 67 of file GEMSimpleModel.h.

Referenced by simulateNoise().

std::vector<double> GEMSimpleModel::GE21NeuBkgParams_
private

Definition at line 65 of file GEMSimpleModel.h.

Referenced by simulateNoise().

int GEMSimpleModel::maxBunch_
private

Definition at line 54 of file GEMSimpleModel.h.

Referenced by simulateNoise().

int GEMSimpleModel::minBunch_
private

Definition at line 53 of file GEMSimpleModel.h.

Referenced by simulateNoise().

double GEMSimpleModel::minPabsNoiseCLS_
private

Definition at line 59 of file GEMSimpleModel.h.

Referenced by simulateClustering().

double GEMSimpleModel::scaleLumi_
private

Definition at line 61 of file GEMSimpleModel.h.

Referenced by simulateNoise().

double GEMSimpleModel::signalPropagationSpeed_
private

Definition at line 50 of file GEMSimpleModel.h.

Referenced by getSimHitBx().

bool GEMSimpleModel::simulateElectronBkg_
private

Definition at line 62 of file GEMSimpleModel.h.

Referenced by simulateNoise().

bool GEMSimpleModel::simulateIntrinsicNoise_
private

Definition at line 60 of file GEMSimpleModel.h.

Referenced by simulateNoise().

double GEMSimpleModel::slopeNeuGE11_
private

Definition at line 64 of file GEMSimpleModel.h.

Referenced by simulateNoise().

double GEMSimpleModel::timeJitter_
private

Definition at line 46 of file GEMSimpleModel.h.

Referenced by getSimHitBx().

double GEMSimpleModel::timeResolution_
private

Definition at line 45 of file GEMSimpleModel.h.

Referenced by getSimHitBx().