#include <ThirdHitPrediction.h>

Public Types
typedef TkTrackingRegionsMargin< float >	Margin

typedef PixelRecoRange< float >	Range

Public Member Functions
void	getRanges (const DetLayer *layer, float phi[], float rz[])

void	getRanges (float rORz, float phi[], float rz[])

bool	isCompatibleWithMultipleScattering (GlobalPoint g3, std::vector< const TrackingRecHit * > h, std::vector< GlobalVector > &localDirs, const edm::EventSetup &es)

	ThirdHitPrediction (const TrackingRegion &region, GlobalPoint inner, GlobalPoint outer, const edm::EventSetup &es, double nSigMultipleScattering, double maxAngleRatio, std::string builderName)

	~ThirdHitPrediction ()

Private Member Functions
float	angleRatio (const Global2DVector &p3, const Global2DVector &c)

float	areaParallelogram (const Global2DVector &a, const Global2DVector &b)

void	calculateRanges (float rz3, float phi[2], float rz[2])

void	calculateRangesBarrel (float r3, float phi[2], float z[2], bool keep)

void	calculateRangesForward (float z3, float phi[2], float r[2], bool keep)

std::pair< float, float >	findArcIntersection (std::pair< float, float > a, std::pair< float, float > b, bool &keep)

std::pair< float, float >	findMinimalCircles (float r)

void	findRectangle (const float x[3], const float y[3], const float par[3], float phi[2], float z[2])

std::pair< float, float >	findTouchingCircles (float r)

void	fitParabola (const float x[3], const float y[3], float par[3])

void	initLayer (const DetLayer *layer)

void	invertCircle (Global2DVector &c, float &r)

void	invertPoint (Global2DVector &p)

void	printOut (char *text)

void	spinCloser (float phi[3])

Private Attributes
std::pair< float, float >	arc_0m

float	Bz

Global2DVector	c0

Global2DVector	dif

GlobalPoint	g1

GlobalPoint	g2

bool	keep

double	maxRatio

double	nSigma

Global2DVector	p1

Global2DVector	p2

float	r0

float	rm

bool	theBarrel

Range	theDetRange

bool	theForward

const DetLayer *	theLayer

PixelRecoLineRZ	theLine

Margin	theTolerance

const TransientTrackingRecHitBuilder *	theTTRecHitBuilder

Detailed Description

Definition at line 33 of file ThirdHitPrediction.h.

Member Typedef Documentation

typedef TkTrackingRegionsMargin<float> ThirdHitPrediction::Margin

Definition at line 36 of file ThirdHitPrediction.h.

typedef PixelRecoRange<float> ThirdHitPrediction::Range

Definition at line 35 of file ThirdHitPrediction.h.

Constructor & Destructor Documentation

ThirdHitPrediction::ThirdHitPrediction	(	const TrackingRegion &	region,
		GlobalPoint	inner,
		GlobalPoint	outer,
		const edm::EventSetup &	es,
		double	nSigMultipleScattering,
		double	maxAngleRatio,
		std::string	builderName
	)

Definition at line 24 of file ThirdHitPrediction.cc.

References diffTwoXMLs::g1, diffTwoXMLs::g2, edm::EventSetup::get(), SurfaceOrientation::inner, keep, HLT_ES_cff::magfield, TrackingRegion::origin(), TrackingRegion::originRBound(), SurfaceOrientation::outer, p1, p2, TrackingRegion::ptMin(), submit::rm, PV3DBase< T, PVType, FrameType >::x(), and PV3DBase< T, PVType, FrameType >::y().

 {
  using namespace edm;
  ESHandle<MagneticField> magfield;
  es.get<IdealMagneticFieldRecord>().get(magfield);
 
  edm::ESHandle<TransientTrackingRecHitBuilder> ttrhbESH;
  es.get<TransientRecHitRecord>().get(builderName,ttrhbESH);
  theTTRecHitBuilder = ttrhbESH.product();
 
  Bz = fabs(magfield->inInverseGeV(GlobalPoint(0,0,0)).z());
 
  c0 = Global2DVector(region.origin().x(),
                      region.origin().y());
 
  r0 = region.originRBound();
  rm = region.ptMin() / Bz;
 
  g1 = inner;
  g2 = outer;
 
  p1 = Global2DVector(g1.x(), g1.y());
  p2 = Global2DVector(g2.x(), g2.y());
 
  dif = p1 - p2;
 
  // Prepare circles of minimal pt (rm) and cylinder of origin (r0)
  keep = true;
  arc_0m = findArcIntersection(findMinimalCircles (rm),
                               findTouchingCircles(r0), keep);
 
  nSigma   = nSigMultipleScattering;
  maxRatio = maxAngleRatio;
 }

ThirdHitPrediction::~ThirdHitPrediction ( )

Definition at line 63 of file ThirdHitPrediction.cc.

64 {

65 }

Member Function Documentation

float ThirdHitPrediction::angleRatio	(	const Global2DVector &	p3,
		const Global2DVector &	c
	)

private

Definition at line 192 of file ThirdHitPrediction.cc.

References trackerHits::c, mag2(), p1, and p2.

 {
   float rad2 = (p1 - c).mag2();
 
   float a12 = asin(fabsf(areaParallelogram(p1 - c, p2 - c)) / rad2);
   float a23 = asin(fabsf(areaParallelogram(p2 - c, p3 - c)) / rad2);
 
   return a23/a12;
 }

float ThirdHitPrediction::areaParallelogram	(	const Global2DVector &	a,
		const Global2DVector &	b
	)

private

Definition at line 185 of file ThirdHitPrediction.cc.

References PV2DBase< T, PVType, FrameType >::x(), and PV2DBase< T, PVType, FrameType >::y().

 {
   return a.x() * b.y() - a.y() * b.x();
 }

void ThirdHitPrediction::calculateRanges	(	float	rz3,
		float	phi[2],
		float	rz[2]
	)

private

Definition at line 323 of file ThirdHitPrediction.cc.

 {
   // Clear
   phi[0] = 0.; rz[0] = 0.;
   phi[1] = 0.; rz[1] = 0.;
 
   // Calculate
   if(theBarrel) calculateRangesBarrel (rz3, phi,rz, keep);
            else calculateRangesForward(rz3, phi,rz, keep);
 }

void ThirdHitPrediction::calculateRangesBarrel	(	float	r3,
		float	phi[2],
		float	z[2],
		bool	keep
	)

private

Definition at line 214 of file ThirdHitPrediction.cc.

References angle(), trackerHits::c, funct::cos(), delta, diffTwoXMLs::g1, diffTwoXMLs::g2, i, mag(), p1, p2, p3, PV2DBase< T, PVType, FrameType >::phi(), funct::sin(), funct::sqr(), and mathSSE::sqrt().

 {
   pair<float,float> arc_all =
     findArcIntersection(arc_0m, findTouchingCircles(r3), keep);
 
   if(arc_all.second != 0.)
   {
     Global2DVector c3(0.,0.); // barrel at r3
     invertCircle(c3,r3);      // inverted
 
     float angle[3];           // prepare angles
     angle[0] = arc_all.first - arc_all.second;
     angle[1] = arc_all.first;
     angle[2] = arc_all.first + arc_all.second;
 
     float phi3[3], z3[3];
     Global2DVector delta = c3 - p2;
 
     for(int i=0; i<3; i++)
     {
       Global2DVector vec(cos(angle[i]), sin(angle[i])); // unit vector
       float lambda = delta*vec - sqrt(sqr(delta*vec) - delta*delta + sqr(r3));
 
       Global2DVector p3 = p2 + lambda * vec;  // inverted third hit 
       invertPoint(p3);                        // third hit
       phi3[i] = p3.phi();                     // phi of third hit
 
       float ratio;
 
       if(keep && i==1)
       { // Straight line
         ratio = (p2 - p3).mag() / (p1 - p2).mag();
       }
       else
       { // Circle
         Global2DVector c = p2 - vec * (vec * (p2 - p1)); // inverted antipodal
         invertPoint(c);                                  // antipodal
         c = 0.5*(p1 + c);                                // center
 
         ratio = angleRatio(p3,c);
       }
 
       z3[i] = g2.z() + (g2.z() - g1.z()) * ratio;        // z of third hit
     }
 
     spinCloser(phi3);
 
     // Parabola on phi - z
     float par[3];
     fitParabola  (phi3,z3, par);
     findRectangle(phi3,z3, par, phi,z);
   }
 }

void ThirdHitPrediction::calculateRangesForward	(	float	z3,
		float	phi[2],
		float	r[2],
		bool	keep
	)

private

Definition at line 270 of file ThirdHitPrediction.cc.

References angle(), trackerHits::c, funct::cos(), diffTwoXMLs::g1, diffTwoXMLs::g2, i, PV2DBase< T, PVType, FrameType >::mag(), mag2(), p1, p2, p3, PV2DBase< T, PVType, FrameType >::phi(), funct::sin(), x, and detailsBasic3DVector::y.

 {
   float angle[3];           // prepare angles
   angle[0] = arc_0m.first - arc_0m.second;
   angle[1] = arc_0m.first;
   angle[2] = arc_0m.first + arc_0m.second;
 
   float ratio = (z3 - g2.z()) / (g2.z() - g1.z());
 
   if(0 < ratio  && ratio < maxRatio)
   {
     float phi3[3], r3[3];
 
     for(int i=0; i<3; i++)
     {
       Global2DVector p3;
 
       if(keep && i==1)
       { // Straight line
         p3 = p2 + ratio * (p2 - p1);
       }
       else
       { // Circle
         Global2DVector vec(cos(angle[i]), sin(angle[i])); // unit vector
   
         Global2DVector c = p2 - vec * (vec * (p2 - p1));  // inverted antipodal
         invertPoint(c);                                   // antipodal
         c = 0.5*(p1 + c);                                 // center
 
         float rad2 = (p1 - c).mag2();
 
         float a12 = asin(areaParallelogram(p1 - c, p2 - c) / rad2);
         float a23 = ratio * a12;
 
         p3 = c + Global2DVector((p2-c).x()*cos(a23) - (p2-c).y()*sin(a23),
                                 (p2-c).x()*sin(a23) + (p2-c).y()*cos(a23));
       }
 
       phi3[i] = p3.phi();
       r3[i]   = p3.mag();
     }
 
     spinCloser(phi3);
 
     // Parabola on phi - z
     float par[3];
     fitParabola  (phi3,r3, par);
     findRectangle(phi3,r3, par, phi,r);
   }
 }

pair< float, float > ThirdHitPrediction::findArcIntersection	(	std::pair< float, float >	a,
		std::pair< float, float >	b,
		bool &	keep
	)

private

Definition at line 111 of file ThirdHitPrediction.cc.

References trackerHits::c, M_PI, max(), and min.

 { 
   // spin closer
   while(b.first < a.first - M_PI) b.first += 2*M_PI;
   while(b.first > a.first + M_PI) b.first -= 2*M_PI;
 
   float min,max;
 
   if(a.first - a.second > b.first - b.second)
     min = a.first - a.second;
   else
   { min = b.first - b.second; keep = false; }
 
   if(a.first + a.second < b.first + b.second)
     max = a.first + a.second;
   else
   { max = b.first + b.second; keep = false; }
   
   pair<float,float> c(0.,0.);
 
   if(min < max)
   {
     c.first  = 0.5*(max + min);
     c.second = 0.5*(max - min);
   }
 
   return c;
 }

pair< float, float > ThirdHitPrediction::findMinimalCircles ( float r )

private

Definition at line 85 of file ThirdHitPrediction.cc.

References a, and funct::sqr().

 { 
   pair<float,float> a(0.,0.);
 
   if(dif.mag2() <  2 * sqr(r))
     a = pair<float,float>( dif.phi(),
                            0.5*acos(1 - 0.5 * dif.mag2()/sqr(r)) );
 
   return a;
 }

void ThirdHitPrediction::findRectangle	(	const float	x[3],
		const float	y[3],
		const float	par[3],
		float	phi[2],
		float	z[2]
	)

private

Definition at line 164 of file ThirdHitPrediction.cc.

References max(), min, and funct::sqr().

 { 
   // Initial guess
   phi[0] = min(x[0],x[2]); z[0] = min(y[0],y[2]);
   phi[1] = max(x[0],x[2]); z[1] = max(y[0],y[2]);
 
   // Extremum: position and value
   float xe = -par[1]/(2*par[2]);
   float ye = par[0] - sqr(par[1])/(4*par[2]);
 
   // Check if extremum is inside the phi range
   if(phi[0] < xe  && xe < phi[1])
   {
     if(ye < z[0]) z[0] = ye;
     if(ye > z[1]) z[1] = ye;
   }
 }

pair< float, float > ThirdHitPrediction::findTouchingCircles ( float r )

private

Definition at line 97 of file ThirdHitPrediction.cc.

References a, trackerHits::c, mag2(), p2, phi, and funct::sqr().

 {
   Global2DVector c = c0;
   invertCircle(c,r);
 
   pair<float,float> a(0.,0.);
   a = pair<float,float>( (c - p2).phi(),
                           0.5*acos(1 - 2*sqr(r)/(c - p2).mag2()) );
 
   return a;
 }

void ThirdHitPrediction::fitParabola	(	const float	x[3],
		const float	y[3],
		float	par[3]
	)

private

Definition at line 142 of file ThirdHitPrediction.cc.

References indexGen::s2, and funct::sqr().

 { 
   float s2 = sqr(x[0]) * (y[1] - y[2]) +
              sqr(x[1]) * (y[2] - y[0]) +
              sqr(x[2]) * (y[0] - y[1]);
   
   float s1 =     x[0]  * (y[1] - y[2]) +
                  x[1]  * (y[2] - y[0]) +
                  x[2]  * (y[0] - y[1]);
 
   float s3 = (x[0] - x[1]) * (x[1] - x[2]) * (x[2] - x[0]);
   float s4 = x[0]*x[1]*y[2] * (x[0] - x[1]) +
              x[0]*y[1]*x[2] * (x[2] - x[0]) +
              y[0]*x[1]*x[2] * (x[1] - x[2]);
 
   par[2] =  s1 / s3; // a2
   par[1] = -s2 / s3; // a1
   par[0] = -s4 / s3; // a0
 }

void ThirdHitPrediction::getRanges	(	const DetLayer *	layer,
		float	phi[],
		float	rz[]
	)

Definition at line 336 of file ThirdHitPrediction.cc.

References M_PI, max(), and min.

Referenced by PixelTripletLowPtGenerator::hitTriplets().

 {
   theLayer = layer;
   
   if (layer) initLayer(layer);
 
   float phi_inner[2],rz_inner[2];
   calculateRanges(theDetRange.min(), phi_inner,rz_inner);
 
   float phi_outer[2],rz_outer[2];
   calculateRanges(theDetRange.max(), phi_outer,rz_outer);
 
   if( (phi_inner[0] == 0. && phi_inner[1] == 0.) ||
       (phi_outer[0] == 0. && phi_outer[1] == 0.) )
   {
     phi[0] = 0.;
     phi[1] = 0.;
 
      rz[0] = 0.;
      rz[1] = 0.;
   }
   else
   {
     while(phi_outer[0] > phi_inner[0] + M_PI)
     { phi_outer[0] -= 2*M_PI; phi_outer[1] -= 2*M_PI; }
 
     while(phi_outer[0] < phi_inner[0] - M_PI)
     { phi_outer[0] += 2*M_PI; phi_outer[1] += 2*M_PI; }
 
     phi[0] = min(phi_inner[0],phi_outer[0]);
     phi[1] = max(phi_inner[1],phi_outer[1]);
   
      rz[0] = min( rz_inner[0], rz_outer[0]);
      rz[1] = max( rz_inner[1], rz_outer[1]);
   }
 }

void ThirdHitPrediction::getRanges	(	float	rORz,
		float	phi[],
		float	rz[]
	)

Definition at line 375 of file ThirdHitPrediction.cc.

 {
   calculateRanges(rz3, phi,rz);
 }

void ThirdHitPrediction::initLayer ( const DetLayer * layer )

private

Definition at line 470 of file ThirdHitPrediction.cc.

References GeomDetEnumerators::barrel, BoundSurface::bounds(), GeomDetEnumerators::endcap, DetLayer::location(), GeometricSearchDet::position(), Cylinder::radius(), CosmicsPD_Skims::radius, BarrelDetLayer::specificSurface(), ForwardDetLayer::surface(), BarrelDetLayer::surface(), Bounds::thickness(), and PV3DBase< T, PVType, FrameType >::z().

 {
   if ( layer->location() == GeomDetEnumerators::barrel) {
     theBarrel = true;
     theForward = false;
     const BarrelDetLayer& bl = dynamic_cast<const BarrelDetLayer&>(*layer);
     float halfThickness  = bl.surface().bounds().thickness()/2;
     float radius = bl.specificSurface().radius();
     theDetRange = Range(radius-halfThickness, radius+halfThickness);
   } else if ( layer->location() == GeomDetEnumerators::endcap) {
     theBarrel= false;
     theForward = true;
     const ForwardDetLayer& fl = dynamic_cast<const ForwardDetLayer&>(*layer);
     float halfThickness  = fl.surface().bounds().thickness()/2;
     float zLayer = fl.position().z() ;
     theDetRange = Range(zLayer-halfThickness, zLayer+halfThickness);
   }
 }

void ThirdHitPrediction::invertCircle	(	Global2DVector &	c,
		float &	r
	)

private

Definition at line 68 of file ThirdHitPrediction.cc.

References mag2(), p1, alignCSCRings::s, and funct::sqr().

 {
   float s = dif.mag2() / ((c - p1).mag2() - sqr(r));
 
   c = p1 + (c - p1)*s;
   r *= fabsf(s);
 }

void ThirdHitPrediction::invertPoint ( Global2DVector & p )

private

Definition at line 77 of file ThirdHitPrediction.cc.

References mag2(), p1, and alignCSCRings::s.

 {
   float s = dif.mag2() / (p - p1).mag2();
 
   p = p1 + (p - p1)*s;
 }

bool ThirdHitPrediction::isCompatibleWithMultipleScattering	(	GlobalPoint	g3,
		std::vector< const TrackingRecHit * >	h,
		std::vector< GlobalVector > &	localDirs,
		const edm::EventSetup &	es
	)

Definition at line 382 of file ThirdHitPrediction.cc.

References beta, trackerHits::c, PixelRecoUtilities::curvature(), dir, diffTwoXMLs::g1, diffTwoXMLs::g2, m_pi, mag2(), max(), AlCaHLTBitMon_ParallelJobs::p, p1, p2, p3, slope, funct::sqr(), mathSSE::sqrt(), v, PV2DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::x(), PV2DBase< T, PVType, FrameType >::y(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by PixelTripletLowPtGenerator::hitTriplets().

 {
   Global2DVector p1(g1.x(),g1.y());
   Global2DVector p2(g2.x(),g2.y());
   Global2DVector p3(g3.x(),g3.y());
 
   CircleFromThreePoints circle(g1,g2,g3);
 
   if(circle.curvature() != 0.)
   {
   Global2DVector c (circle.center().x(), circle.center().y());
 
   float rad2 = (p1 - c).mag2();
   float a12 = asin(fabsf(areaParallelogram(p1 - c, p2 - c)) / rad2);
   float a23 = asin(fabsf(areaParallelogram(p2 - c, p3 - c)) / rad2);
 
   float slope = (g2.z() - g1.z()) / a12;
 
   float rz3 = g2.z() + slope * a23;
   float delta_z = g3.z() - rz3;
 
   // Transform to tt
   vector<TransientTrackingRecHit::RecHitPointer> th;
   for(vector<const TrackingRecHit*>::iterator ih = h.begin(); ih!= h.end(); ih++)
     th.push_back(theTTRecHitBuilder->build(*ih));
 
   float sigma1_le2 = max(th[0]->parametersError()[0][0],
                          th[0]->parametersError()[1][1]);
   float sigma2_le2 = max(th[1]->parametersError()[0][0],
                          th[1]->parametersError()[1][1]);
 
   float sigma_z2 = (1 + a23/a12)*(1 + a23/a12) * sigma2_le2 +
                    (    a23/a12)*(    a23/a12) * sigma1_le2;
 
   float cotTheta = slope * circle.curvature(); // == sinhEta
   float coshEta  = sqrt(1 + sqr(cotTheta));    // == 1/sinTheta
 
   float pt = Bz / circle.curvature();
   float p  = pt * coshEta;
 
   float m_pi = 0.13957018;
   float beta = p / sqrt(sqr(p) + sqr(m_pi));
 
   MultipleScatteringParametrisation msp(theLayer,es);
   PixelRecoPointRZ rz2(g2.perp(), g2.z());
 
   float sigma_z = msp(pt, cotTheta, rz2) / beta;
 
   // Calculate globalDirs
   float sinTheta =       1. / coshEta;
   float cosTheta = cotTheta * sinTheta;
 
   int dir;
   if(areaParallelogram(p1 - c, p2 - c) > 0) dir = 1; else dir = -1;
 
   float curvature = circle.curvature();
 
   {
    Global2DVector v = (p1 - c)*curvature*dir;
    globalDirs.push_back(GlobalVector(-v.y()*sinTheta,v.x()*sinTheta,cosTheta));
   }
 
   {
    Global2DVector v = (p2 - c)*curvature*dir;
    globalDirs.push_back(GlobalVector(-v.y()*sinTheta,v.x()*sinTheta,cosTheta));
   }
 
   {
    Global2DVector v = (p3 - c)*curvature*dir;
    globalDirs.push_back(GlobalVector(-v.y()*sinTheta,v.x()*sinTheta,cosTheta));
   }
 
   // Multiple scattering
   float sigma_ms  = sigma_z * coshEta;
 
   // Local error squared
   float sigma_le2 = max(th[2]->parametersError()[0][0],
                         th[2]->parametersError()[1][1]);
 
   return (delta_z*delta_z / (sigma_ms*sigma_ms + sigma_le2 + sigma_z2)
           < nSigma * nSigma);
   }
 
   return false;
 }

void ThirdHitPrediction::printOut ( char * text )

private

void ThirdHitPrediction::spinCloser ( float phi[3] )

private

Definition at line 203 of file ThirdHitPrediction.cc.

References M_PI.

 {
   while(phi[1] < phi[0] - M_PI) phi[1] += 2*M_PI;
   while(phi[1] > phi[0] + M_PI) phi[1] -= 2*M_PI;
 
   while(phi[2] < phi[1] - M_PI) phi[2] += 2*M_PI;
   while(phi[2] > phi[1] + M_PI) phi[2] -= 2*M_PI;
 }

Member Data Documentation

std::pair<float,float> ThirdHitPrediction::arc_0m

private

Definition at line 93 of file ThirdHitPrediction.h.

float ThirdHitPrediction::Bz

private

Definition at line 90 of file ThirdHitPrediction.h.

Global2DVector ThirdHitPrediction::c0

private

Definition at line 92 of file ThirdHitPrediction.h.

Global2DVector ThirdHitPrediction::dif

private

Definition at line 92 of file ThirdHitPrediction.h.

GlobalPoint ThirdHitPrediction::g1

private

Definition at line 91 of file ThirdHitPrediction.h.

GlobalPoint ThirdHitPrediction::g2

private

Definition at line 91 of file ThirdHitPrediction.h.

bool ThirdHitPrediction::keep

private

Definition at line 95 of file ThirdHitPrediction.h.

double ThirdHitPrediction::maxRatio

private

Definition at line 98 of file ThirdHitPrediction.h.

double ThirdHitPrediction::nSigma

private

Definition at line 97 of file ThirdHitPrediction.h.

Global2DVector ThirdHitPrediction::p1

private

Definition at line 92 of file ThirdHitPrediction.h.

Global2DVector ThirdHitPrediction::p2

private

Definition at line 92 of file ThirdHitPrediction.h.

float ThirdHitPrediction::r0

private

Definition at line 90 of file ThirdHitPrediction.h.

float ThirdHitPrediction::rm

private

Definition at line 90 of file ThirdHitPrediction.h.

bool ThirdHitPrediction::theBarrel

private

Definition at line 80 of file ThirdHitPrediction.h.

Range ThirdHitPrediction::theDetRange

private

Definition at line 81 of file ThirdHitPrediction.h.

bool ThirdHitPrediction::theForward

private

Definition at line 80 of file ThirdHitPrediction.h.

const DetLayer* ThirdHitPrediction::theLayer

private

Definition at line 85 of file ThirdHitPrediction.h.

PixelRecoLineRZ ThirdHitPrediction::theLine

private

Definition at line 83 of file ThirdHitPrediction.h.

Margin ThirdHitPrediction::theTolerance

private

Definition at line 82 of file ThirdHitPrediction.h.

const TransientTrackingRecHitBuilder* ThirdHitPrediction::theTTRecHitBuilder

private

Definition at line 87 of file ThirdHitPrediction.h.

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