Page MenuHomeHEPForge
Files F7879786

No OneTemporary
Actions

View Options

diff --git a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbar.cc b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbar.cc
--- a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbar.cc
+++ b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbar.cc
@@ -1,184 +1,192 @@
// -*- C++ -*-
//
// MatchboxAmplitudelnuqqbar.cc is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2017 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the MatchboxAmplitudelnuqqbar class.
//
#include "Herwig/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbar.h"
#include "ThePEG/Interface/Switch.h"
#include "ThePEG/Interface/Parameter.h"
using namespace Herwig;
MatchboxAmplitudelnuqqbar::MatchboxAmplitudelnuqqbar()
: theDiagonal(false) {}
MatchboxAmplitudelnuqqbar::~MatchboxAmplitudelnuqqbar() {}
void MatchboxAmplitudelnuqqbar::doinit() {
MatchboxAmplitude::doinit();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
CA = SM().Nc();
CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
theCKM = standardCKM(SM())->getUnsquaredMatrix(6);
nPoints(4);
}
void MatchboxAmplitudelnuqqbar::doinitrun() {
MatchboxAmplitude::doinitrun();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
+ MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
+ GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
+ CA = SM().Nc();
+ CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
nPoints(4);
}
IBPtr MatchboxAmplitudelnuqqbar::clone() const {
return new_ptr(*this);
}
IBPtr MatchboxAmplitudelnuqqbar::fullclone() const {
return new_ptr(*this);
}
bool MatchboxAmplitudelnuqqbar::canHandle(const PDVector& proc) const {
PDVector xproc = proc;
if ( xproc[0]->CC() )
xproc[0] = xproc[0]->CC();
if ( xproc[1]->CC() )
xproc[1] = xproc[1]->CC();
PDVector::iterator elektron = xproc.begin();
for ( ; elektron != xproc.end(); ++elektron )
if ( abs((*elektron)->id()) >= 11 && abs((*elektron)->id()) <= 16 && abs((*elektron)->id()) % 2 == 1 ) break;
if ( elektron == xproc.end() ) return false;
PDPtr e = *elektron;
xproc.erase(elektron);
PDVector::iterator neutrino = xproc.begin();
for ( ; neutrino != xproc.end(); ++neutrino )
if ( abs((*neutrino)->id()) >= 11 && abs((*neutrino)->id()) <= 16 && abs((*neutrino)->id()) % 2 == 0 ) break;
if ( neutrino == xproc.end() ) return false;
PDPtr n = *neutrino;
xproc.erase(neutrino);
PDVector::iterator quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 && abs((*quark)->id()) % 2 == 1 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr d = *quark;
xproc.erase(quark);
quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 && abs((*quark)->id()) % 2 == 0 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr u = *quark;
xproc.erase(quark);
if ( u->iCharge() + d->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(u) != SU2Helper::family(d) ) return false;
if ( SU2Helper::family(e) != SU2Helper::family(n) ) return false;
return xproc.empty();
}
void MatchboxAmplitudelnuqqbar::prepareAmplitudes(Ptr<MatchboxMEBase>::tcptr me) {
if ( !calculateTreeAmplitudes() ) {
MatchboxAmplitude::prepareAmplitudes(me);
return;
}
amplitudeScale(sqrt(lastSHat()));
setupLeptons(0,amplitudeMomentum(0),1,amplitudeMomentum(1));
momentum(2,amplitudeMomentum(2));
momentum(3,amplitudeMomentum(3));
MatchboxAmplitude::prepareAmplitudes(me);
}
Complex MatchboxAmplitudelnuqqbar::evaluate(size_t, const vector<int>& hel, Complex& largeN) {
if ( abs(hel[2]+hel[3]) != 2 ) {
largeN = 0.;
return 0.;
}
Complex ckmelement = 1.;
if ( !theDiagonal ) {
bool wPlus = ( abs(amplitudePartonData()[0]->id()) % 2 == 0 ) ?
amplitudePartonData()[1]->id() < 0:
amplitudePartonData()[0]->id() < 0;
pair<int,int> tmp(
SU2Helper::family(amplitudePartonData()[2])-1,
SU2Helper::family(amplitudePartonData()[3])-1);
if ( amplitudePartonData()[3]->id() < 0 ) swap(tmp.first,tmp.second);
ckmelement = theCKM[tmp.first][tmp.second];
if ( !wPlus ) ckmelement = conj(ckmelement);
}
Complex wPropergator =
1./Complex(((amplitudeMomentum(0)+amplitudeMomentum(1)).m2()-sqr(MW))/lastSHat(),MW*GW/lastSHat());
Complex wVertices =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement;
const LorentzVector<Complex>& leptonCurrent = llbarLeftCurrent(0,hel[0],1,hel[1]);
const LorentzVector<Complex>& quarkCurrent = qqbarLeftCurrent(2,hel[2],3,hel[3]);
Complex current = hel[2] == 1 ? Complex(0.,-1)*leptonCurrent.dot(quarkCurrent): 0.;
Complex res = current*wVertices*wPropergator;
largeN = res;
return res;
}
Complex MatchboxAmplitudelnuqqbar::evaluateOneLoop(size_t, const vector<int>& hel) {
if ( abs(hel[2]+hel[3]) != 2 ) return 0.;
Complex ckmelement = 1.;
if ( !theDiagonal ) {
bool wPlus = ( abs(amplitudePartonData()[0]->id()) % 2 == 0 ) ?
amplitudePartonData()[1]->id() < 0:
amplitudePartonData()[0]->id() < 0;
pair<int,int> tmp(
SU2Helper::family(amplitudePartonData()[2])-1,
SU2Helper::family(amplitudePartonData()[3])-1);
if ( amplitudePartonData()[3]->id() < 0 ) swap(tmp.first,tmp.second);
ckmelement = theCKM[tmp.first][tmp.second];
if ( !wPlus ) ckmelement = conj(ckmelement);
}
Complex wPropergator =
1./Complex(((amplitudeMomentum(0)+amplitudeMomentum(1)).m2()-sqr(MW))/lastSHat(),MW*GW/lastSHat());
Complex wVertices =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement;
const LorentzVector<Complex>& leptonCurrent = llbarLeftCurrent(0,hel[0],1,hel[1]);
const LorentzVector<Complex>& quarkCurrent = qqbarLeftOneLoopCurrent(2,hel[2],3,hel[3]);
Complex current = hel[2] == 1 ? Complex(0.,-1)*leptonCurrent.dot(quarkCurrent): 0.;
Complex res = (SM().alphaS()/(2.*Constants::pi))*current*wVertices*wPropergator;
return res;
}
void MatchboxAmplitudelnuqqbar::persistentOutput(PersistentOStream & os) const {
- os << theDiagonal << theCKM << ounit(MW,GeV) << ounit(GW,GeV) << CA << CF;
+ os << theDiagonal << theCKM ;
}
void MatchboxAmplitudelnuqqbar::persistentInput(PersistentIStream & is, int) {
- is >> theDiagonal >> theCKM >> iunit(MW,GeV) >> iunit(GW,GeV) >> CA >> CF;
+ is >> theDiagonal >> theCKM ;
}
DescribeClass<MatchboxAmplitudelnuqqbar,MatchboxAmplitude>
describeHerwigMatchboxAmplitudelnuqqbar("Herwig::MatchboxAmplitudelnuqqbar", "HwMatchboxBuiltin.so");
void MatchboxAmplitudelnuqqbar::Init() {
static ClassDocumentation<MatchboxAmplitudelnuqqbar> documentation
("MatchboxAmplitudelnuqqbar");
static Switch<MatchboxAmplitudelnuqqbar,bool> interfaceDiagonal
("Diagonal",
"Use a diagonal CKM matrix (ignoring the CKM object of the StandardModel).",
&MatchboxAmplitudelnuqqbar::theDiagonal, false, false, false);
static SwitchOption interfaceDiagonalYes
(interfaceDiagonal,
"Yes",
"Use a diagonal CKM matrix.",
true);
static SwitchOption interfaceDiagonalNo
(interfaceDiagonal,
"No",
"Use the CKM object as used by the StandardModel.",
false);
}
diff --git a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarg.cc b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarg.cc
--- a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarg.cc
+++ b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarg.cc
@@ -1,195 +1,203 @@
// -*- C++ -*-
//
// MatchboxAmplitudelnuqqbarg.cc is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2017 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the MatchboxAmplitudelnuqqbarg class.
//
#include "Herwig/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarg.h"
#include "ThePEG/Interface/Switch.h"
#include "ThePEG/Interface/Parameter.h"
using namespace Herwig;
MatchboxAmplitudelnuqqbarg::MatchboxAmplitudelnuqqbarg()
: theDiagonal(false) {}
MatchboxAmplitudelnuqqbarg::~MatchboxAmplitudelnuqqbarg() {}
void MatchboxAmplitudelnuqqbarg::doinit() {
MatchboxAmplitude::doinit();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
CA = SM().Nc();
CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
theCKM = standardCKM(SM())->getUnsquaredMatrix(6);
nPoints(5);
}
void MatchboxAmplitudelnuqqbarg::doinitrun() {
MatchboxAmplitude::doinitrun();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
+ MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
+ GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
+ CA = SM().Nc();
+ CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
nPoints(5);
}
IBPtr MatchboxAmplitudelnuqqbarg::clone() const {
return new_ptr(*this);
}
IBPtr MatchboxAmplitudelnuqqbarg::fullclone() const {
return new_ptr(*this);
}
bool MatchboxAmplitudelnuqqbarg::canHandle(const PDVector& proc) const {
PDVector xproc = proc;
if ( xproc[0]->CC() )
xproc[0] = xproc[0]->CC();
if ( xproc[1]->CC() )
xproc[1] = xproc[1]->CC();
PDVector::iterator elektron = xproc.begin();
for ( ; elektron != xproc.end(); ++elektron )
if ( abs((*elektron)->id()) >= 11 && abs((*elektron)->id()) <= 16 && abs((*elektron)->id()) % 2 == 1 ) break;
if ( elektron == xproc.end() ) return false;
PDPtr e = *elektron;
xproc.erase(elektron);
PDVector::iterator neutrino = xproc.begin();
for ( ; neutrino != xproc.end(); ++neutrino )
if ( abs((*neutrino)->id()) >= 11 && abs((*neutrino)->id()) <= 16 && abs((*neutrino)->id()) % 2 == 0 ) break;
if ( neutrino == xproc.end() ) return false;
PDPtr n = *neutrino;
xproc.erase(neutrino);
PDVector::iterator quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 && abs((*quark)->id()) % 2 == 1 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr d = *quark;
xproc.erase(quark);
quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 && abs((*quark)->id()) % 2 == 0 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr u = *quark;
xproc.erase(quark);
PDVector::iterator gluon = xproc.begin();
for ( ; gluon != xproc.end(); ++gluon )
if ( (*gluon)->id() == 21 ) break;
if ( gluon == xproc.end() ) return false;
xproc.erase(gluon);
if ( SU2Helper::family(e) != SU2Helper::family(n) ) return false;
if ( u->iCharge() + d->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(u) != SU2Helper::family(d) ) return false;
return xproc.empty();
}
void MatchboxAmplitudelnuqqbarg::prepareAmplitudes(Ptr<MatchboxMEBase>::tcptr me) {
if ( !calculateTreeAmplitudes() ) {
MatchboxAmplitude::prepareAmplitudes(me);
return;
}
amplitudeScale(sqrt(lastSHat()));
setupLeptons(0,amplitudeMomentum(0),1,amplitudeMomentum(1));
momentum(2,amplitudeMomentum(2));
momentum(3,amplitudeMomentum(3));
momentum(4,amplitudeMomentum(4));
MatchboxAmplitude::prepareAmplitudes(me);
}
Complex MatchboxAmplitudelnuqqbarg::evaluate(size_t, const vector<int>& hel, Complex& largeN) {
if ( abs(hel[2]+hel[3]) != 2 ) {
largeN = 0.;
return 0.;
}
Complex ckmelement = 1.;
if ( !theDiagonal ) {
bool wPlus = ( abs(amplitudePartonData()[0]->id()) % 2 == 0 ) ?
amplitudePartonData()[1]->id() < 0:
amplitudePartonData()[0]->id() < 0;
pair<int,int> tmp(
SU2Helper::family(amplitudePartonData()[2])-1,
SU2Helper::family(amplitudePartonData()[3])-1);
if ( amplitudePartonData()[3]->id() < 0 ) swap(tmp.first,tmp.second);
ckmelement = theCKM[tmp.first][tmp.second];
if ( !wPlus ) ckmelement = conj(ckmelement);
}
Complex wPropergator =
1./Complex(((amplitudeMomentum(0)+amplitudeMomentum(1)).m2()-sqr(MW))/lastSHat(),MW*GW/lastSHat());
Complex wVertices =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement;
Complex sVertex =
sqrt(4.*Constants::pi*SM().alphaS());
const LorentzVector<Complex>& leptonCurrent = llbarLeftCurrent(0,hel[0],1,hel[1]);
const LorentzVector<Complex>& quarkCurrent = qqbargLeftCurrent(2,hel[2],3,hel[3],4,hel[4]);
Complex current = hel[2] == 1 ? Complex(0.,-1)*leptonCurrent.dot(quarkCurrent): 0.;
Complex res = current*wVertices*wPropergator*sVertex;
largeN = res;
return res;
}
Complex MatchboxAmplitudelnuqqbarg::evaluateOneLoop(size_t, const vector<int>& hel) {
if ( abs(hel[2]+hel[3]) != 2 ) return 0.;
Complex ckmelement = 1.;
if ( !theDiagonal ) {
bool wPlus = ( abs(amplitudePartonData()[0]->id()) % 2 == 0 ) ?
amplitudePartonData()[1]->id() < 0:
amplitudePartonData()[0]->id() < 0;
pair<int,int> tmp(
SU2Helper::family(amplitudePartonData()[2])-1,
SU2Helper::family(amplitudePartonData()[3])-1);
if ( amplitudePartonData()[3]->id() < 0 ) swap(tmp.first,tmp.second);
ckmelement = theCKM[tmp.first][tmp.second];
if ( !wPlus ) ckmelement = conj(ckmelement);
}
Complex wPropergator =
1./Complex(((amplitudeMomentum(0)+amplitudeMomentum(1)).m2()-sqr(MW))/lastSHat(),MW*GW/lastSHat());
Complex wVertices =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement;
Complex sVertex =
sqrt(4.*Constants::pi*SM().alphaS());
const LorentzVector<Complex>& leptonCurrent = llbarLeftCurrent(0,hel[0],1,hel[1]);
const LorentzVector<Complex>& quarkCurrent = qqbargLeftOneLoopCurrent(2,hel[2],3,hel[3],4,hel[4]);
Complex current = hel[2] == 1 ? Complex(0.,-1)*leptonCurrent.dot(quarkCurrent): 0.;
Complex res = (SM().alphaS()/(2.*Constants::pi))*current*wVertices*wPropergator*sVertex;
return res;
}
void MatchboxAmplitudelnuqqbarg::persistentOutput(PersistentOStream & os) const {
- os << theDiagonal << theCKM << ounit(MW,GeV) << ounit(GW,GeV) << CA << CF;
+ os << theDiagonal << theCKM ;
}
void MatchboxAmplitudelnuqqbarg::persistentInput(PersistentIStream & is, int) {
- is >> theDiagonal >> theCKM >> iunit(MW,GeV) >> iunit(GW,GeV) >> CA >> CF;
+ is >> theDiagonal >> theCKM ;
}
DescribeClass<MatchboxAmplitudelnuqqbarg,MatchboxAmplitude>
describeHerwigMatchboxAmplitudelnuqqbarg("Herwig::MatchboxAmplitudelnuqqbarg", "HwMatchboxBuiltin.so");
void MatchboxAmplitudelnuqqbarg::Init() {
static ClassDocumentation<MatchboxAmplitudelnuqqbarg> documentation
("MatchboxAmplitudelnuqqbarg");
static Switch<MatchboxAmplitudelnuqqbarg,bool> interfaceDiagonal
("Diagonal",
"Use a diagonal CKM matrix (ignoring the CKM object of the StandardModel).",
&MatchboxAmplitudelnuqqbarg::theDiagonal, false, false, false);
static SwitchOption interfaceDiagonalYes
(interfaceDiagonal,
"Yes",
"Use a diagonal CKM matrix.",
true);
static SwitchOption interfaceDiagonalNo
(interfaceDiagonal,
"No",
"Use the CKM object as used by the StandardModel.",
false);
}
diff --git a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbargg.cc b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbargg.cc
--- a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbargg.cc
+++ b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbargg.cc
@@ -1,193 +1,201 @@
// -*- C++ -*-
//
// MatchboxAmplitudelnuqqbargg.cc is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2017 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the MatchboxAmplitudelnuqqbargg class.
//
#include "Herwig/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbargg.h"
#include "ThePEG/Interface/Switch.h"
#include "ThePEG/Interface/Parameter.h"
using namespace Herwig;
MatchboxAmplitudelnuqqbargg::MatchboxAmplitudelnuqqbargg()
: theDiagonal(false) {}
MatchboxAmplitudelnuqqbargg::~MatchboxAmplitudelnuqqbargg() {}
void MatchboxAmplitudelnuqqbargg::doinit() {
MatchboxAmplitude::doinit();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
CA = SM().Nc();
CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
theCKM = standardCKM(SM())->getUnsquaredMatrix(6);
nPoints(6);
}
void MatchboxAmplitudelnuqqbargg::doinitrun() {
MatchboxAmplitude::doinitrun();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
+ MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
+ GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
+ CA = SM().Nc();
+ CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
nPoints(6);
}
IBPtr MatchboxAmplitudelnuqqbargg::clone() const {
return new_ptr(*this);
}
IBPtr MatchboxAmplitudelnuqqbargg::fullclone() const {
return new_ptr(*this);
}
bool MatchboxAmplitudelnuqqbargg::canHandle(const PDVector& proc) const {
PDVector xproc = proc;
if ( xproc[0]->CC() )
xproc[0] = xproc[0]->CC();
if ( xproc[1]->CC() )
xproc[1] = xproc[1]->CC();
PDVector::iterator elektron = xproc.begin();
for ( ; elektron != xproc.end(); ++elektron )
if ( abs((*elektron)->id()) >= 11 && abs((*elektron)->id()) <= 16 && abs((*elektron)->id()) % 2 == 1 ) break;
if ( elektron == xproc.end() ) return false;
PDPtr e = *elektron;
xproc.erase(elektron);
PDVector::iterator neutrino = xproc.begin();
for ( ; neutrino != xproc.end(); ++neutrino )
if ( abs((*neutrino)->id()) >= 11 && abs((*neutrino)->id()) <= 16 && abs((*neutrino)->id()) % 2 == 0 ) break;
if ( neutrino == xproc.end() ) return false;
PDPtr n = *neutrino;
xproc.erase(neutrino);
PDVector::iterator quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 && abs((*quark)->id()) % 2 == 1 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr d = *quark;
xproc.erase(quark);
quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 && abs((*quark)->id()) % 2 == 0 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr u = *quark;
xproc.erase(quark);
PDVector::iterator gluon = xproc.begin();
for ( ; gluon != xproc.end(); ++gluon )
if ( (*gluon)->id() == 21 ) break;
if ( gluon == xproc.end() ) return false;
xproc.erase(gluon);
gluon = xproc.begin();
for ( ; gluon != xproc.end(); ++gluon )
if ( (*gluon)->id() == 21 ) break;
if ( gluon == xproc.end() ) return false;
xproc.erase(gluon);
if ( SU2Helper::family(e) != SU2Helper::family(n) ) return false;
if ( u->iCharge() + d->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(u) != SU2Helper::family(d) ) return false;
return xproc.empty();
}
void MatchboxAmplitudelnuqqbargg::prepareAmplitudes(Ptr<MatchboxMEBase>::tcptr me) {
if ( !calculateTreeAmplitudes() ) {
MatchboxAmplitude::prepareAmplitudes(me);
return;
}
amplitudeScale(sqrt(lastSHat()));
setupLeptons(0,amplitudeMomentum(0),1,amplitudeMomentum(1));
momentum(2,amplitudeMomentum(2));
momentum(3,amplitudeMomentum(3));
momentum(4,amplitudeMomentum(4));
momentum(5,amplitudeMomentum(5));
MatchboxAmplitude::prepareAmplitudes(me);
}
Complex MatchboxAmplitudelnuqqbargg::evaluate(size_t a, const vector<int>& hel, Complex& largeN) {
if ( abs(hel[2]+hel[3]) != 2 ) {
largeN = 0.;
return 0.;
}
assert ( amplitudeToColourMap()[2] == 0 && amplitudeToColourMap()[3] == 1 );
int g1,hg1,g2,hg2;
if ( amplitudeToColourMap()[4] == 2 && amplitudeToColourMap()[5] == 3 ) {
if ( a == 0 ) {
g1 = 4; hg1 = hel[4];
g2 = 5; hg2 = hel[5];
} else if ( a == 1 ) {
g1 = 5; hg1 = hel[5];
g2 = 4; hg2 = hel[4];
} else assert ( false );
} else if ( amplitudeToColourMap()[4] == 3 && amplitudeToColourMap()[5] == 2 ) {
if ( a == 0 ) {
g1 = 5; hg1 = hel[5];
g2 = 4; hg2 = hel[4];
} else if ( a == 1 ) {
g1 = 4; hg1 = hel[4];
g2 = 5; hg2 = hel[5];
} else assert ( false );
} else assert ( false );
Complex ckmelement = 1.;
if ( !theDiagonal ) {
bool wPlus = ( abs(amplitudePartonData()[0]->id()) % 2 == 0 ) ?
amplitudePartonData()[1]->id() < 0:
amplitudePartonData()[0]->id() < 0;
pair<int,int> tmp(
SU2Helper::family(amplitudePartonData()[2]),
SU2Helper::family(amplitudePartonData()[3]));
if ( amplitudePartonData()[3]->id() < 0 ) swap(tmp.first,tmp.second);
ckmelement = theCKM[tmp.first][tmp.second];
if ( !wPlus ) ckmelement = conj(ckmelement);
}
Complex wPropergator =
1./Complex(((amplitudeMomentum(0)+amplitudeMomentum(1)).m2()-sqr(MW))/lastSHat(),MW*GW/lastSHat());
Complex wVertices =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement;
Complex sVertices =
4.*Constants::pi*SM().alphaS();
const LorentzVector<Complex>& leptonCurrent = llbarLeftCurrent(0,hel[0],1,hel[1]);
const LorentzVector<Complex>& quarkCurrent = qqbarggLeftCurrent(2,hel[2],3,hel[3],g1,hg1,g2,hg2);
Complex current = hel[2] == 1 ? Complex(0.,-1)*leptonCurrent.dot(quarkCurrent): 0.;
Complex res = current*wVertices*wPropergator*sVertices;
largeN = res;
return res;
}
void MatchboxAmplitudelnuqqbargg::persistentOutput(PersistentOStream & os) const {
- os << theDiagonal << theCKM << ounit(MW,GeV) << ounit(GW,GeV) << CA << CF;
+ os << theDiagonal << theCKM ;
}
void MatchboxAmplitudelnuqqbargg::persistentInput(PersistentIStream & is, int) {
- is >> theDiagonal >> theCKM >> iunit(MW,GeV) >> iunit(GW,GeV) >> CA >> CF;
+ is >> theDiagonal >> theCKM ;
}
DescribeClass<MatchboxAmplitudelnuqqbargg,MatchboxAmplitude>
describeHerwigMatchboxAmplitudelnuqqbargg("Herwig::MatchboxAmplitudelnuqqbargg", "HwMatchboxBuiltin.so");
void MatchboxAmplitudelnuqqbargg::Init() {
static ClassDocumentation<MatchboxAmplitudelnuqqbargg> documentation
("MatchboxAmplitudelnuqqbargg");
static Switch<MatchboxAmplitudelnuqqbargg,bool> interfaceDiagonal
("Diagonal",
"Use a diagonal CKM matrix (ignoring the CKM object of the StandardModel).",
&MatchboxAmplitudelnuqqbargg::theDiagonal, false, false, false);
static SwitchOption interfaceDiagonalYes
(interfaceDiagonal,
"Yes",
"Use a diagonal CKM matrix.",
true);
static SwitchOption interfaceDiagonalNo
(interfaceDiagonal,
"No",
"Use the CKM object as used by the StandardModel.",
false);
}
diff --git a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarqqbar.cc b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarqqbar.cc
--- a/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarqqbar.cc
+++ b/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarqqbar.cc
@@ -1,267 +1,275 @@
// -*- C++ -*-
//
// MatchboxAmplitudelnuqqbarqqbar.cc is a part of Herwig - A multi-purpose Monte Carlo event generator
// Copyright (C) 2002-2017 The Herwig Collaboration
//
// Herwig is licenced under version 3 of the GPL, see COPYING for details.
// Please respect the MCnet academic guidelines, see GUIDELINES for details.
//
//
// This is the implementation of the non-inlined, non-templated member
// functions of the MatchboxAmplitudelnuqqbarqqbar class.
//
#include "Herwig/MatrixElement/Matchbox/Builtin/Amplitudes/MatchboxAmplitudelnuqqbarqqbar.h"
using namespace Herwig;
MatchboxAmplitudelnuqqbarqqbar::MatchboxAmplitudelnuqqbarqqbar()
: theDiagonal(false) {}
MatchboxAmplitudelnuqqbarqqbar::~MatchboxAmplitudelnuqqbarqqbar() {}
void MatchboxAmplitudelnuqqbarqqbar::doinit() {
MatchboxAmplitude::doinit();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
CA = SM().Nc();
CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
theCKM = standardCKM(SM())->getUnsquaredMatrix(6);
nPoints(6);
}
void MatchboxAmplitudelnuqqbarqqbar::doinitrun() {
MatchboxAmplitude::doinitrun();
+ MZ = getParticleData(ParticleID::Z0)->hardProcessMass();
+ GZ = getParticleData(ParticleID::Z0)->hardProcessWidth();
+ MW = getParticleData(ParticleID::Wplus)->hardProcessMass();
+ GW = getParticleData(ParticleID::Wplus)->hardProcessWidth();
+ CA = SM().Nc();
+ CF = (SM().Nc()*SM().Nc()-1.)/(2.*SM().Nc());
nPoints(6);
}
IBPtr MatchboxAmplitudelnuqqbarqqbar::clone() const {
return new_ptr(*this);
}
IBPtr MatchboxAmplitudelnuqqbarqqbar::fullclone() const {
return new_ptr(*this);
}
bool MatchboxAmplitudelnuqqbarqqbar::canHandle(const PDVector& proc) const {
PDVector xproc = proc;
if ( xproc[0]->CC() )
xproc[0] = xproc[0]->CC();
if ( xproc[1]->CC() )
xproc[1] = xproc[1]->CC();
// Charge charge(ZERO);
PDVector::iterator elektron = xproc.begin();
for ( ; elektron != xproc.end(); ++elektron )
if ( abs((*elektron)->id()) >= 11 && abs((*elektron)->id()) <= 16 && abs((*elektron)->id()) % 2 == 1 ) break;
if ( elektron == xproc.end() ) return false;
PDPtr e = *elektron;
xproc.erase(elektron);
PDVector::iterator neutrino = xproc.begin();
for ( ; neutrino != xproc.end(); ++neutrino )
if ( abs((*neutrino)->id()) >= 11 && abs((*neutrino)->id()) <= 16 && abs((*neutrino)->id()) % 2 == 0 ) break;
if ( neutrino == xproc.end() ) return false;
PDPtr n = *neutrino;
xproc.erase(neutrino);
PDVector::iterator quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr q1 = *quark;
xproc.erase(quark);
quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr q2 = *quark;
xproc.erase(quark);
quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr q3 = *quark;
xproc.erase(quark);
quark = xproc.begin();
for ( ; quark != xproc.end(); ++quark )
if ( abs((*quark)->id()) >= 1 && abs((*quark)->id()) <= 6 ) {
assert( (*quark)->hardProcessMass() == ZERO );
break;
}
if ( quark == xproc.end() ) return false;
PDPtr q4 = *quark;
xproc.erase(quark);
if ( q1->id() == -q2->id() ) {
if ( q3->iCharge() + q4->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(q3) != SU2Helper::family(q4) ) return false;
} else if ( q1->id() == -q3->id() ) {
if ( q2->iCharge() + q4->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(q2) != SU2Helper::family(q4) ) return false;
} else if ( q1->id() == -q4->id() ) {
if ( q2->iCharge() + q3->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(q2) != SU2Helper::family(q3) ) return false;
} else if ( q2->id() == -q3->id() ) {
if ( q1->iCharge() + q4->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(q1) != SU2Helper::family(q4) ) return false;
} else if ( q2->id() == -q4->id() ) {
if ( q1->iCharge() + q3->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(q1) != SU2Helper::family(q3) ) return false;
} else if ( q3->id() == -q4->id() ) {
if ( q1->iCharge() + q2->iCharge() + e->iCharge() != PDT::ChargeNeutral ) return false;
if ( theDiagonal && SU2Helper::family(q1) != SU2Helper::family(q2) ) return false;
} else return false;
if ( SU2Helper::family(e) != SU2Helper::family(n) ) return false;
return xproc.empty();
}
void MatchboxAmplitudelnuqqbarqqbar::prepareAmplitudes(Ptr<MatchboxMEBase>::tcptr me) {
if ( !calculateTreeAmplitudes() ) {
MatchboxAmplitude::prepareAmplitudes(me);
return;
}
amplitudeScale(sqrt(lastSHat()));
setupLeptons(0,amplitudeMomentum(0),1,amplitudeMomentum(1));
momentum(2,amplitudeMomentum(2));
momentum(3,amplitudeMomentum(3));
momentum(4,amplitudeMomentum(4));
momentum(5,amplitudeMomentum(5));
MatchboxAmplitude::prepareAmplitudes(me);
}
Complex MatchboxAmplitudelnuqqbarqqbar::evaluate(size_t a, const vector<int>& hel, Complex& largeN) {
const LorentzVector<Complex>& leptonCurrent = llbarLeftCurrent(0,hel[0],1,hel[1]);
Complex Current2345 =
hel[2] == 1 && hel[3] == 1 && abs(hel[4]+hel[5]) == 2 &&
abs(amplitudePartonData()[4]->id()) == abs(amplitudePartonData()[5]->id()) ?
leptonCurrent.dot(qqbarqqbarLeftCurrent(2,hel[2],3,hel[3],4,hel[4],5,hel[5])) : 0.;
Complex Current4523 =
hel[4] == 1 && hel[5] == 1 && abs(hel[2]+hel[3]) == 2 &&
abs(amplitudePartonData()[2]->id()) == abs(amplitudePartonData()[3]->id()) ?
leptonCurrent.dot(qqbarqqbarLeftCurrent(4,hel[4],5,hel[5],2,hel[2],3,hel[3])) : 0.;
Complex Current2543 =
hel[2] == 1 && hel[5] == 1 && abs(hel[4]+hel[3]) == 2 &&
abs(amplitudePartonData()[4]->id()) == abs(amplitudePartonData()[3]->id()) ?
-leptonCurrent.dot(qqbarqqbarLeftCurrent(2,hel[2],5,hel[5],4,hel[4],3,hel[3])) : 0.;
Complex Current4325 =
hel[4] == 1 && hel[3] == 1 && abs(hel[2]+hel[5]) == 2 &&
abs(amplitudePartonData()[2]->id()) == abs(amplitudePartonData()[5]->id()) ?
-leptonCurrent.dot(qqbarqqbarLeftCurrent(4,hel[4],3,hel[3],2,hel[2],5,hel[5])) : 0.;
Complex ckmelement23 = 1.;
Complex ckmelement45 = 1.;
if ( !theDiagonal ) {
bool wPlus = ( abs(amplitudePartonData()[0]->id()) % 2 == 0 ) ?
amplitudePartonData()[1]->id() < 0:
amplitudePartonData()[0]->id() < 0;
pair<int,int> tmp23(
SU2Helper::family(amplitudePartonData()[2])-1,
SU2Helper::family(amplitudePartonData()[3])-1);
pair<int,int> tmp45(
SU2Helper::family(amplitudePartonData()[4])-1,
SU2Helper::family(amplitudePartonData()[5])-1);
if ( amplitudePartonData()[3]->id() < 0 ) swap(tmp23.first,tmp23.second);
if ( amplitudePartonData()[5]->id() < 0 ) swap(tmp45.first,tmp45.second);
ckmelement23 = theCKM[tmp23.first][tmp23.second];
ckmelement45 = theCKM[tmp45.first][tmp45.second];
if ( !wPlus ) {
ckmelement23 = conj(ckmelement23);
ckmelement45 = conj(ckmelement45);
}
}
Complex wPropergator =
1./Complex(((amplitudeMomentum(0)+amplitudeMomentum(1)).m2()-sqr(MW))/lastSHat(),MW*GW/lastSHat());
Complex wVertices23 =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement23;
Complex wVertices45 =
2.*SM().alphaEMMZ()*Constants::pi/SM().sin2ThetaW()*ckmelement45;
Complex sVertices =
4.*Constants::pi*SM().alphaS();
Complex res2345 =
Complex(0.,-1.)*wPropergator*sVertices*Current2345*wVertices23;
Complex res2543 =
Complex(0.,-1.)*wPropergator*sVertices*Current2543*wVertices23;
Complex res4523 =
Complex(0.,-1.)*wPropergator*sVertices*Current4523*wVertices45;
Complex res4325 =
Complex(0.,-1.)*wPropergator*sVertices*Current4325*wVertices45;
double Nc = SM().Nc();
Complex resLeading = 0.;
Complex resSubLeading = 0.;
if ( amplitudeToColourMap()[2] == 0 && amplitudeToColourMap()[3] == 1 &&
amplitudeToColourMap()[4] == 2 && amplitudeToColourMap()[5] == 3 ) {
if ( a == 0 ) { //(23)(45)
resLeading = res2543 + res4325;
resSubLeading = res2345 + res4523;
} else if ( a == 1 ) { //(25)(43)
resLeading = res2345 + res4523;
resSubLeading = res2543 + res4325;
} else assert(false);
} else if ( amplitudeToColourMap()[2] == 0 && amplitudeToColourMap()[3] == 3 &&
amplitudeToColourMap()[4] == 2 && amplitudeToColourMap()[5] == 1 ) {
if ( a == 0 ) { // (25)(43)
resLeading = res2345 + res4523;
resSubLeading = res2543 + res4325;
} else if ( a == 1 ) { // (23)(45)
resLeading = res2543 + res4325;
resSubLeading = res2345 + res4523;
} else assert(false);
} else if ( amplitudeToColourMap()[2] == 2 && amplitudeToColourMap()[3] == 3 &&
amplitudeToColourMap()[4] == 0 && amplitudeToColourMap()[5] == 1 ) {
if ( a == 0 ) { //(23)(45)
resLeading = res2543 + res4325;
resSubLeading = res2345 + res4523;
} else if ( a == 1 ) { //(25)(43)
resLeading = res2345 + res4523;
resSubLeading = res2543 + res4325;
} else assert(false);
} else if ( amplitudeToColourMap()[2] == 2 && amplitudeToColourMap()[3] == 1 &&
amplitudeToColourMap()[4] == 0 && amplitudeToColourMap()[5] == 3 ) {
if ( a == 0 ) { //(25)(43)
resLeading = res2345 + res4523;
resSubLeading = res2543 + res4325;
} else if ( a == 1 ) { //(23)(45)
resLeading = res2543 + res4325;
resSubLeading = res2345 + res4523;
} else assert(false);
} else assert(false);
resSubLeading *= -1./Nc;
largeN = resLeading/2.;
return (resLeading + resSubLeading)/2.;
}
void MatchboxAmplitudelnuqqbarqqbar::persistentOutput(PersistentOStream & os) const {
- os << theDiagonal << theCKM << ounit(MW,GeV) << ounit(GW,GeV) << CA << CF;
+ os << theDiagonal << theCKM ;
}
void MatchboxAmplitudelnuqqbarqqbar::persistentInput(PersistentIStream & is, int) {
- is >> theDiagonal >> theCKM >> iunit(MW,GeV) >> iunit(GW,GeV) >> CA >> CF;
+ is >> theDiagonal >> theCKM ;
}
DescribeClass<MatchboxAmplitudelnuqqbarqqbar,MatchboxAmplitude>
describeHerwigMatchboxAmplitudelnuqqbarqqbar("Herwig::MatchboxAmplitudelnuqqbarqqbar", "HwMatchboxBuiltin.so");
void MatchboxAmplitudelnuqqbarqqbar::Init() {
static ClassDocumentation<MatchboxAmplitudelnuqqbarqqbar> documentation
("MatchboxAmplitudelnuqqbarqqbar");
static Switch<MatchboxAmplitudelnuqqbarqqbar,bool> interfaceDiagonal
("Diagonal",
"Use a diagonal CKM matrix (ignoring the CKM object of the StandardModel).",
&MatchboxAmplitudelnuqqbarqqbar::theDiagonal, false, false, false);
static SwitchOption interfaceDiagonalYes
(interfaceDiagonal,
"Yes",
"Use a diagonal CKM matrix.",
true);
static SwitchOption interfaceDiagonalNo
(interfaceDiagonal,
"No",
"Use the CKM object as used by the StandardModel.",
false);
}

File Metadata

Mime Type
text/x-diff
Expires
Tue, Nov 19, 9:00 PM (1 d, 2 h)
Storage Engine
blob
Storage Format
Raw Data
Storage Handle
3801875
Default Alt Text
(36 KB)

Event Timeline