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LHC-FASER_derived_lepton_distributions.cpp
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LHC-FASER_derived_lepton_distributions.cpp
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/*
* LHC-FASER_derived_lepton_distributions.cpp
*
* Created on: 05 Apr 5 2011
* Authors: Ben O'Leary (benjamin.oleary@gmail.com)
* Jonas Lindert (jonas.lindert@googlemail.com)
* Carsten Robens (carsten.robens@gmx.de)
* Copyright 2010 Ben O'Leary, Jonas Lindert, Carsten Robens
*
* This file is part of LHC-FASER.
*
* LHC-FASER is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LHC-FASER is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LHC-FASER. If not, see <http://www.gnu.org/licenses/>.
*
* The GNU General Public License should be in GNU_public_license.txt
* the files of LHC-FASER are:
* LHC-FASER.hpp
* LHC-FASER.cpp
* LHC-FASER_base_electroweak_cascade_stuff.hpp
* LHC-FASER_base_electroweak_cascade_stuff.cpp
* LHC-FASER_base_kinematics_stuff.hpp
* LHC-FASER_base_kinematics_stuff.cpp
* LHC-FASER_base_lepton_distribution_stuff.hpp
* LHC-FASER_base_lepton_distribution_stuff.cpp
* LHC-FASER_charged_electroweak_cascade_stuff.hpp
* LHC-FASER_charged_electroweak_cascade_stuff.cpp
* LHC-FASER_cross-section_stuff.hpp
* LHC-FASER_cross-section_stuff.cpp
* LHC-FASER_derived_lepton_distributions.hpp
* LHC-FASER_derived_lepton_distributions.cpp
* LHC-FASER_electroweak_cascade_collection_stuff.hpp
* LHC-FASER_electroweak_cascade_collection_stuff.cpp
* LHC-FASER_full_cascade_stuff.hpp
* LHC-FASER_full_cascade_stuff.cpp
* LHC-FASER_global_stuff.hpp
* LHC-FASER_global_stuff.cpp
* LHC-FASER_input_handling_stuff.hpp
* LHC-FASER_input_handling_stuff.cpp
* LHC-FASER_jet_kinematics_stuff.hpp
* LHC-FASER_jet_kinematics_stuff.cpp
* LHC-FASER_lepton_kinematics_stuff.hpp
* LHC-FASER_lepton_kinematics_stuff.cpp
* LHC-FASER_neutral_electroweak_cascade_stuff.hpp
* LHC-FASER_neutral_electroweak_cascade_stuff.cpp
* LHC-FASER_signal_calculator_stuff.hpp
* LHC-FASER_signal_calculator_stuff.cpp
* LHC-FASER_signal_data_collection_stuff.hpp
* LHC-FASER_signal_data_collection_stuff.cpp
* LHC-FASER_sparticle_decay_stuff.hpp
* LHC-FASER_sparticle_decay_stuff.cpp
* LHC-FASER_template_classes.hpp
* and README.LHC-FASER.txt which describes the package.
*
* LHC-FASER also requires CppSLHA. It should be found in a subdirectory
* included with this package.
*
* LHC-FASER also requires grids of lookup values. These should also be
* found in a subdirectory included with this package.
*/
#include "LHC-FASER_derived_lepton_distributions.hpp"
namespace LHC_FASER
{
flatNearMuonPlusAntimuon::flatNearMuonPlusAntimuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
NULL ),
minToMaxConst( minToMaxSegment.addTerm( 0,
0,
NULL,
1.0 ) )
{
segmentSet.push_back( &minToMaxSegment );
}
flatNearMuonPlusAntimuon::~flatNearMuonPlusAntimuon()
{
// does nothing.
}
sameChiralityNearMuon::sameChiralityNearMuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
NULL ),
minToMaxConst( minToMaxSegment.addTerm( 0,
0 ) ),
minToMaxLin( minToMaxSegment.addTerm( 1,
0 ) )
{
segmentSet.push_back( &minToMaxSegment );
}
sameChiralityNearMuon::~sameChiralityNearMuon()
{
// does nothing.
}
oppositeChiralityNearMuon::oppositeChiralityNearMuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
NULL ),
minToMaxConst( minToMaxSegment.addTerm( 0,
0 ) ),
minToMaxLin( minToMaxSegment.addTerm( 1,
0 ) )
{
segmentSet.push_back( &minToMaxSegment );
}
oppositeChiralityNearMuon::~oppositeChiralityNearMuon()
{
// does nothing.
}
flatFarMuonPlusAntimuon::flatFarMuonPlusAntimuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle,
CppSLHA::particle_property_set const* const fourthParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
fourthParticle ),
Elk( CppSLHA::CppSLHA_global::really_wrong_value ),
Ehk( CppSLHA::CppSLHA_global::really_wrong_value ),
minToLkConst( minToLkSegment.addTerm( 0,
0 ) ),
minToLkLog( minToLkSegment.addTerm( 0,
1 ) ),
lkToHkConst( lkToHkSegment.addTerm( 0,
0 ) ),
hkToMaxConst( hkToMaxSegment.addTerm( 0,
0 ) ),
hkToMaxLog( hkToMaxSegment.addTerm( 0,
1 ) )
{
segmentSet.push_back( &minToLkSegment );
segmentSet.push_back( &lkToHkSegment );
segmentSet.push_back( &hkToMaxSegment );
}
flatFarMuonPlusAntimuon::~flatFarMuonPlusAntimuon()
{
// does nothing.
}
void
flatFarMuonPlusAntimuon::calculateCoefficients()
{
double mlSq( thirdMass * thirdMass );
double mXSq( fourthMass * fourthMass );
productionFrameEnergy = ( ( mlSq - mXSq ) / ( 2.0 * thirdMass ) );
minimumEnergy = ( ( thirdMass / firstMass ) * productionFrameEnergy );
// there are 2 kinematic cases for determining the kink energies in terms
// of the cascade masses:
if( ( firstMass * thirdMass ) > ( secondMass * secondMass ) )
{
Elk = ( ( ( secondMass / firstMass ) * ( secondMass / thirdMass ) )
* productionFrameEnergy );
Ehk = ( ( ( firstMass / secondMass ) * ( thirdMass / secondMass ) )
* productionFrameEnergy );
}
else
{
Elk = ( ( ( firstMass / secondMass ) * ( thirdMass / secondMass ) )
* productionFrameEnergy );
Ehk = ( ( ( secondMass / firstMass ) * ( secondMass / thirdMass ) )
* productionFrameEnergy );
}
maximumEnergy = ( ( firstMass / thirdMass ) * productionFrameEnergy );
// now we set up the coefficients of various terms:
// MIN to LK segment:
minToLkSegment.setSegmentRange( minimumEnergy,
Elk );
minToLkConst->setCoefficient( -log( minimumEnergy ) );
minToLkLog->setCoefficient( 1.0 );
// LK to HK segment:
lkToHkSegment.setSegmentRange( Elk,
Ehk );
lkToHkConst->setCoefficient( log( ( maximumEnergy / Ehk ) ) );
// HK to MAX segment:
hkToMaxSegment.setSegmentRange( Ehk,
maximumEnergy );
hkToMaxConst->setCoefficient( log( maximumEnergy ) );
hkToMaxLog->setCoefficient( -1.0 );
// debugging:
/**std::cout
<< std::endl
<< "debugging: flat_far_muon_plus_antimuon_distribution:";
std::cout << std::endl << "normalization = " << normalization;
std::cout << std::endl << "minimumEnergy = " << minimumEnergy;
std::cout << std::endl << "Elk = " << Elk;
std::cout << std::endl << "Ehk = " << Ehk;
std::cout << std::endl << "maximumEnergy = " << maximumEnergy;
std::cout << std::endl;**/
}
sameChiralityFarMuon::sameChiralityFarMuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle,
CppSLHA::particle_property_set const* const fourthParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
fourthParticle ),
Elk( CppSLHA::CppSLHA_global::really_wrong_value ),
Ehk( CppSLHA::CppSLHA_global::really_wrong_value ),
minToLkInv( minToLkSegment.addTerm( -1,
0 ) ),
minToLkConst( minToLkSegment.addTerm( 0,
0 ) ),
minToLkLog( minToLkSegment.addTerm( 0,
1 ) ),
minToLkLin( minToLkSegment.addTerm( 1,
0 ) ),
lkToHkInv( lkToHkSegment.addTerm( -1,
0 ) ),
lkToHkConst( lkToHkSegment.addTerm( 0,
0 ) ),
hkToMaxInv( hkToMaxSegment.addTerm( -1,
0 ) ),
hkToMaxConst( hkToMaxSegment.addTerm( 0,
0 ) ),
hkToMaxLog( hkToMaxSegment.addTerm( 0,
1 ) ),
hkToMaxLin( hkToMaxSegment.addTerm( 1,
0 ) )
{
segmentSet.push_back( &minToLkSegment );
segmentSet.push_back( &lkToHkSegment );
segmentSet.push_back( &hkToMaxSegment );
}
sameChiralityFarMuon::~sameChiralityFarMuon()
{
// does nothing.
}
void
sameChiralityFarMuon::calculateCoefficients()
{
double mq( firstMass );
double mQSq( mq * mq );
double mNSq( secondMass * secondMass );
double mlSq( thirdMass * thirdMass );
double mXSq( fourthMass * fourthMass );
productionFrameEnergy = ( ( mlSq - mXSq ) / ( 2.0 * thirdMass ) );
minimumEnergy
= ( ( thirdMass / firstMass ) * productionFrameEnergy );
// there are 2 kinematic cases for determining the kink energies in terms
// of the cascade masses.
if( ( firstMass * thirdMass ) > ( secondMass * secondMass ) )
{
Elk = ( ( ( secondMass / firstMass ) * ( secondMass / thirdMass ) )
* productionFrameEnergy );
Ehk = ( ( ( firstMass / secondMass ) * ( thirdMass / secondMass ) )
* productionFrameEnergy );
}
else
{
Elk = ( ( ( firstMass / secondMass ) * ( thirdMass / secondMass ) )
* productionFrameEnergy );
Ehk = ( ( ( secondMass / firstMass ) * ( secondMass / thirdMass ) )
* productionFrameEnergy );
}
maximumEnergy = ( ( firstMass / thirdMass ) * productionFrameEnergy );
// now we set up the coefficients of various terms:
// MIN to LK segment:
minToLkSegment.setSegmentRange( minimumEnergy,
Elk );
minToLkLin->setCoefficient( ( 4.0 * mlSq * mNSq * mq )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq )
* ( mlSq - mXSq ) ) );
minToLkLog->setCoefficient( ( 2.0 * mNSq * ( mQSq - mlSq ) )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) ) );
minToLkConst->setCoefficient(
( 2.0 * mNSq
* ( 2.0 * mNSq - mQSq + mlSq
+ ( mQSq - mlSq ) * log( ( ( 2.0 * mq ) / ( mlSq - mXSq ) ) ) ) )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) ) );
minToLkInv->setCoefficient( ( mNSq * ( 2.0 * mNSq - mQSq )
* ( mlSq - mXSq ) )
/ ( mq * ( mlSq - mNSq ) * ( mNSq + mQSq ) ) );
// LK to HK segment:
lkToHkSegment.setSegmentRange( Elk,
Ehk );
// there are 2 kinematic cases for determining the kink energies in terms
// of the cascade masses.
if( ( firstMass * thirdMass ) < ( secondMass * secondMass ) )
// if the assumption that the mass spectrum was SPS1a-like was
// incorrect...
{
lkToHkConst->setCoefficient(
( 2.0 * ( ( mlSq + mNSq ) * ( mNSq - mQSq )
+ mNSq * ( mlSq - mQSq ) * log( ( mNSq / mQSq ) ) ) )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) ) );
lkToHkInv->setCoefficient(
( 2.0 * mNSq * ( mNSq - mQSq ) * ( mlSq - mXSq ) )
/ ( mq * ( mlSq - mNSq ) * ( mNSq + mQSq ) ) );
}
else
{
lkToHkConst->setCoefficient(
( 2.0 * ( ( mQSq - mNSq ) * ( mlSq - mNSq )
+ mNSq * ( mlSq - mQSq ) * log( ( mlSq / mNSq ) ) ) )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) ) );
lkToHkInv->setCoefficient( 0.0 );
}
// HK to MAX segment:
hkToMaxSegment.setSegmentRange( Ehk,
maximumEnergy );
hkToMaxLin->setCoefficient( -minToLkLin->getCoefficient() );
hkToMaxLog->setCoefficient( -minToLkLog->getCoefficient() );
hkToMaxConst->setCoefficient(
( 2.0 * mNSq * ( mlSq + mQSq
+ ( mQSq - mlSq ) * log( ( 2.0 * mlSq )
/ ( ( mlSq - mXSq ) * mq ) ) ) )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) );
hkToMaxInv->setCoefficient( ( mNSq * mq * ( mlSq - mXSq ) )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) ) );
// debugging:
/**std::cout
<< std::endl
<< "debugging: lepton_distribution_same_chirality_far_muon:";
std::cout << std::endl << "normalization = " << normalization;
std::cout << std::endl << "minimum_energy = " << minimum_energy;
std::cout << std::endl << "Elk = " << Elk;
std::cout << std::endl << "Ehk = " << Ehk;
std::cout << std::endl << "maximum_energy = " << maximum_energy;
std::cout << std::endl << "minToLkLin = " << minToLkLin;
std::cout << std::endl << "minToLkLog = " << minToLkLog;
std::cout << std::endl << "minToLkConst = " << minToLkConst;
std::cout << std::endl << "minToLkInv = " << minToLkInv;
std::cout << std::endl << "lkToHkConst = " << lkToHkConst;
std::cout << std::endl << "lkToHkInv = " << lkToHkInv;
std::cout << std::endl;**/
}
oppositeChiralityFarMuon::oppositeChiralityFarMuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle,
CppSLHA::particle_property_set const* const fourthParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
fourthParticle ),
Elk( CppSLHA::CppSLHA_global::really_wrong_value ),
Ehk( CppSLHA::CppSLHA_global::really_wrong_value ),
minToLkInv( minToLkSegment.addTerm( -1,
0 ) ),
minToLkConst( minToLkSegment.addTerm( 0,
0 ) ),
minToLkLog( minToLkSegment.addTerm( 0,
1 ) ),
minToLkLin( minToLkSegment.addTerm( 1,
0 ) ),
lkToHkInv( lkToHkSegment.addTerm( -1,
0 ) ),
lkToHkConst( lkToHkSegment.addTerm( 0,
0 ) ),
hkToMaxInv( hkToMaxSegment.addTerm( -1,
0 ) ),
hkToMaxConst( hkToMaxSegment.addTerm( 0,
0 ) ),
hkToMaxLog( hkToMaxSegment.addTerm( 0,
1 ) ),
hkToMaxLin( hkToMaxSegment.addTerm( 1,
0 ) )
{
segmentSet.push_back( &minToLkSegment );
segmentSet.push_back( &lkToHkSegment );
segmentSet.push_back( &hkToMaxSegment );
}
oppositeChiralityFarMuon::~oppositeChiralityFarMuon()
{
// does nothing.
}
void
oppositeChiralityFarMuon::calculateCoefficients()
{
double mq( firstMass );
double mQSq( mq * mq );
double mNSq( secondMass * secondMass );
double mlSq( thirdMass * thirdMass );
double mXSq( fourthMass * fourthMass );
productionFrameEnergy = ( ( mlSq - mXSq ) / ( 2.0 * thirdMass ) );
minimumEnergy = ( ( thirdMass / firstMass ) * productionFrameEnergy );
// there are 2 kinematic cases for determining the kink energies in terms
// of the cascade masses.
if( ( firstMass * thirdMass ) > ( secondMass * secondMass ) )
{
Elk = ( ( ( secondMass / firstMass ) * ( secondMass / thirdMass ) )
* productionFrameEnergy );
Ehk = ( ( ( firstMass / secondMass ) * ( thirdMass / secondMass ) )
* productionFrameEnergy );
}
else
{
Elk = ( ( ( firstMass / secondMass ) * ( thirdMass / secondMass ) )
* productionFrameEnergy );
Ehk = ( ( ( secondMass / firstMass ) * ( secondMass / thirdMass ) )
* productionFrameEnergy );
}
maximumEnergy = ( ( firstMass / thirdMass ) * productionFrameEnergy );
// now we set up the coefficients of various terms:
// MIN to LK segment:
minToLkSegment.setSegmentRange( minimumEnergy,
Elk );
minToLkLin->setCoefficient(
( ( 4.0 * mlSq * mNSq * mq )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) * ( mlSq - mXSq ) ) ) );
minToLkLog->setCoefficient(
( ( 2.0 * ( mNSq * mNSq - mlSq * mQSq ) )
/ ( ( mNSq - mlSq ) * ( mNSq + mQSq ) ) ) );
minToLkConst->setCoefficient(
( ( 2.0 * ( mNSq * ( 2.0 * mNSq - mQSq + mlSq )
+ ( mlSq * mQSq - mNSq * mNSq )
* log( ( ( 2.0 * mq ) / ( mlSq - mXSq ) ) ) ) )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) ) );
minToLkInv->setCoefficient(
( ( mNSq * ( ( 2.0 * mNSq - mQSq ) * ( mlSq - mXSq ) ) )
/ ( mq * ( mNSq - mlSq ) * ( mNSq + mQSq ) ) ) );
// LK to HK segment:
lkToHkSegment.setSegmentRange( Elk,
Ehk );
// there are 2 kinematic cases for determining the kink energies in terms
// of the cascade masses.
if( ( firstMass * thirdMass ) < ( secondMass * secondMass ) )
// if the assumption that the mass spectrum was SPS1a-like was
// incorrect...
{
lkToHkConst->setCoefficient(
( ( 2.0 * ( ( mlSq + mNSq ) * ( mNSq - mQSq )
+ ( mNSq * mNSq - mlSq * mQSq )
* log( ( mNSq / mQSq ) ) ) )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) ) );
lkToHkInv->setCoefficient(
( ( 2.0 * mNSq * ( mNSq - mQSq ) * ( mlSq - mXSq ) )
/ ( mq * ( mNSq - mlSq ) * ( mNSq + mQSq ) ) ) );
}
else
{
lkToHkConst->setCoefficient(
( ( 2.0 * ( ( mQSq - mNSq ) * ( mlSq - mNSq )
+ ( mNSq * mNSq - mlSq * mQSq )
* log( ( mlSq / mNSq ) ) ) )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) ) );
lkToHkInv->setCoefficient( 0.0 );
}
// HK to MAX segment:
hkToMaxSegment.setSegmentRange( Ehk,
maximumEnergy );
hkToMaxLin->setCoefficient( -minToLkLin->getCoefficient() );
hkToMaxLog->setCoefficient( -minToLkLog->getCoefficient() );
hkToMaxConst->setCoefficient(
( ( 2.0 * ( ( mNSq * mNSq - mlSq * mQSq )
* log( ( ( 2.0 * mlSq ) / ( ( mlSq - mXSq ) * mq ) ) )
- mNSq * ( mQSq + mlSq ) ) )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) ) );
hkToMaxInv->setCoefficient(
( ( mNSq * mq * ( mlSq - mXSq ) )
/ ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) ) );
// debugging:
/**std::cout
<< std::endl
<< "debugging: lepton_distribution_opposite_chirality_far_muon:";
std::cout << std::endl << "normalization = " << normalization;
std::cout << std::endl << "minimum_energy = " << minimum_energy;
std::cout << std::endl << "Elk = " << Elk;
std::cout << std::endl << "Ehk = " << Ehk;
std::cout << std::endl << "maximum_energy = " << maximum_energy;
std::cout << std::endl << "lkToHkConst = " << lkToHkConst;
std::cout << std::endl
<< "log( ( mlSq / mNSq ) ) = " << log( ( mlSq / mNSq ) );
std::cout << std::endl
<< "( 2.0 / ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) ) = "
<< ( 2.0 / ( ( mlSq - mNSq ) * ( mNSq + mQSq ) ) );
std::cout << std::endl
<< "( ( mQSq - mNSq ) * ( mlSq - mNSq ) "
<< "+ ( mNSq * mNSq - mlSq * mQSq ) * log( ( mlSq / mNSq ) ) ) = "
<< ( ( mQSq - mNSq ) * ( mlSq - mNSq )
+ ( mNSq * mNSq - mlSq * mQSq ) * log( ( mlSq / mNSq ) ) );
std::cout << std::endl;**/
}
HiggsMuonPlusAntimuon::HiggsMuonPlusAntimuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle,
CppSLHA::particle_property_set const* const fourthParticle ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
fourthParticle ),
Elk( CppSLHA::CppSLHA_global::really_wrong_value ),
Ehk( CppSLHA::CppSLHA_global::really_wrong_value ),
minToLkConst( minToLkSegment.addTerm( 0,
0 ) ),
minToLkLog( minToLkSegment.addTerm( 0,
1 ) ),
lkToHkConst( lkToHkSegment.addTerm( 0,
0 ) ),
hkToMaxConst( hkToMaxSegment.addTerm( 0,
0 ) ),
hkToMaxLog( hkToMaxSegment.addTerm( 0,
1 ) )
{
segmentSet.push_back( &minToLkSegment );
segmentSet.push_back( &lkToHkSegment );
segmentSet.push_back( &hkToMaxSegment );
}
HiggsMuonPlusAntimuon::~HiggsMuonPlusAntimuon()
{
// does nothing.
}
void
HiggsMuonPlusAntimuon::calculateCoefficients()
{
double mq( firstMass );
double mN( secondMass );
double mNSq( mN * mN );
double mH( thirdMass );
double mHSq( mH * mH );
double mX( fourthMass );
double mXSq( mX * mX );
productionFrameEnergy = ( 0.5 * mH );
double EHN( ( mNSq + mHSq - mXSq ) / ( 2.0 * mN ) );
double gammaNH( EHN / mH );
double betaNH( sqrt( ( 1.0 - ( 1.0 / ( gammaNH * gammaNH ) ) ) ) );
double EmaxN( gammaNH * ( 1.0 + betaNH ) * productionFrameEnergy );
double EminN( mHSq / ( 4.0 * EmaxN ) );
// using ( EmaxN * EminN ) = ( mHSq / 4 )
minimumEnergy = ( ( mN / mq ) * EminN );
// there are 2 kinematic cases for determining the kink energies in terms
// of the cascade masses:
// 1st make an assumption:
Elk = ( ( mN / mq ) * EmaxN );
Ehk = ( ( mq / mN ) * EminN );
// then check:
if( Elk > Ehk )
{
Elk = Ehk;
Ehk = ( ( mN / mq ) * EmaxN );
}
maximumEnergy = ( ( mq / mN ) * EmaxN );
// now we set up the coefficients of various terms:
// MIN to LK segment:
minToLkSegment.setSegmentRange( minimumEnergy,
Elk );
minToLkConst->setCoefficient( -log( minimumEnergy ) );
minToLkLog->setCoefficient( 1.0 );
// LK to HK segment:
lkToHkSegment.setSegmentRange( Elk,
Ehk );
lkToHkConst->setCoefficient( log( ( maximumEnergy / Ehk ) ) );
// HK to MAX segment:
hkToMaxSegment.setSegmentRange( Ehk,
maximumEnergy );
hkToMaxConst->setCoefficient( log( maximumEnergy ) );
hkToMaxLog->setCoefficient( -1.0 );
// debugging:
/**std::cout
<< std::endl
<< "debugging: lepton_distribution_Higgs_muon_plus_antimuon_distribution:";
std::cout << std::endl << "normalization = " << normalization;
std::cout << std::endl << "minimum_energy = " << minimum_energy;
std::cout << std::endl << "Elk = " << Elk;
std::cout << std::endl << "Ehk = " << Ehk;
std::cout << std::endl << "maximum_energy = " << maximum_energy;
std::cout << std::endl << "minToLkLog = " << minToLkLog;
std::cout << std::endl << "minToLkConst = " << minToLkConst;
std::cout << std::endl << "lkToHkConst = " << lkToHkConst;
std::cout << std::endl;**/
}
weakVectorBosonHandedMuon::weakVectorBosonHandedMuon(
readierForNewPoint* const readierPointer,
CppSLHA::CppSLHA0 const* const spectrumData,
CppSLHA::particle_property_set const* const firstParticle,
effectiveSquarkMassHolder* const effectiveSquarkMass,
CppSLHA::particle_property_set const* const secondParticle,
CppSLHA::particle_property_set const* const thirdParticle,
CppSLHA::particle_property_set const* const fourthParticle,
bool const negativeMuonIsSameHandednessAsJet ) :
leptonEnergyDistribution( readierPointer,
spectrumData,
firstParticle,
effectiveSquarkMass,
secondParticle,
thirdParticle,
fourthParticle ),
negativeMuonIsSameHandednessAsJet( negativeMuonIsSameHandednessAsJet ),
Elk( CppSLHA::CppSLHA_global::really_wrong_value ),
Ehk( CppSLHA::CppSLHA_global::really_wrong_value ),
cosinesLimitedByEnergy( false ),
gammaCQ( CppSLHA::CppSLHA_global::really_wrong_value ),
gammaCQSq( CppSLHA::CppSLHA_global::really_wrong_value ),
gammaCQCu( CppSLHA::CppSLHA_global::really_wrong_value ),
gammaCQQu( CppSLHA::CppSLHA_global::really_wrong_value ),
betaCQ( CppSLHA::CppSLHA_global::really_wrong_value ),
betaCQSq( CppSLHA::CppSLHA_global::really_wrong_value ),
oneMinusBetaCQ( CppSLHA::CppSLHA_global::really_wrong_value ),
oneMinusBetaCQSq( CppSLHA::CppSLHA_global::really_wrong_value ),
oneMinusBetaCQCu( CppSLHA::CppSLHA_global::really_wrong_value ),
oneMinusBetaCQQu( CppSLHA::CppSLHA_global::really_wrong_value ),
onePlusBetaCQ( CppSLHA::CppSLHA_global::really_wrong_value ),
lnOnePlusBetaCQOverOneMinusBetaCQ(
CppSLHA::CppSLHA_global::really_wrong_value ),
ElMin( CppSLHA::CppSLHA_global::really_wrong_value ),
lnElMin( CppSLHA::CppSLHA_global::really_wrong_value ),
ElMinSq( CppSLHA::CppSLHA_global::really_wrong_value ),
ElMinCu( CppSLHA::CppSLHA_global::really_wrong_value ),
ElMinQu( CppSLHA::CppSLHA_global::really_wrong_value ),
mQ( CppSLHA::CppSLHA_global::really_wrong_value ),
mC( CppSLHA::CppSLHA_global::really_wrong_value ),
mCSq( CppSLHA::CppSLHA_global::really_wrong_value ),
mCCu( CppSLHA::CppSLHA_global::really_wrong_value ),
mCX( CppSLHA::CppSLHA_global::really_wrong_value ),
mXSq( CppSLHA::CppSLHA_global::really_wrong_value ),
mVBSq( CppSLHA::CppSLHA_global::really_wrong_value ),
mVBQu( CppSLHA::CppSLHA_global::really_wrong_value ),
EVB( CppSLHA::CppSLHA_global::really_wrong_value ),
lnmVBSqOverFourElMinSq( CppSLHA::CppSLHA_global::really_wrong_value ),
currentMinToLkInvCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentMinToLkConstCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentMinToLkLogCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentMinToLkLinCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentMinToLkLinLogCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentMinToLkSqCoefficient( CppSLHA::CppSLHA_global::really_wrong_value ),
currentLkToHkConstCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentLkToHkLinCoefficient( CppSLHA::CppSLHA_global::really_wrong_value ),
currentLkToHkSqCoefficient( CppSLHA::CppSLHA_global::really_wrong_value ),
currentHkToMaxInvCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentHkToMaxConstCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentHkToMaxLogCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentHkToMaxLinCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentHkToMaxLinLogCoefficient(
CppSLHA::CppSLHA_global::really_wrong_value ),
currentHkToMaxSqCoefficient( CppSLHA::CppSLHA_global::really_wrong_value ),
minToLkSegment(),
minToLkInv( minToLkSegment.addTerm( -1,
0 ) ),
minToLkConst( minToLkSegment.addTerm( 0,
0 ) ),
minToLkLog( minToLkSegment.addTerm( 0,
1 ) ),
minToLkLin( minToLkSegment.addTerm( 1,
0 ) ),
minToLkLinlog( minToLkSegment.addTerm( 1,
1 ) ),
minToLkSq( minToLkSegment.addTerm( 2,
0 ) ),
lkToHkSegment(),
lkToHkConst( lkToHkSegment.addTerm( 0,
0 ) ),
lkToHkLin( lkToHkSegment.addTerm( 1,
0 ) ),
lkToHkSq( lkToHkSegment.addTerm( 2,
0 ) ),
hkToMaxSegment(),
hkToMaxInv( hkToMaxSegment.addTerm( -1,
0 ) ),
hkToMaxConst( hkToMaxSegment.addTerm( 0,
0 ) ),
hkToMaxLog( hkToMaxSegment.addTerm( 0,
1 ) ),
hkToMaxLin( hkToMaxSegment.addTerm( 1,
0 ) ),
hkToMaxLinlog( hkToMaxSegment.addTerm( 1,
1 ) ),
hkToMaxSq( hkToMaxSegment.addTerm( 2,
0 ) )
{
segmentSet.push_back( &minToLkSegment );
segmentSet.push_back( &lkToHkSegment );
segmentSet.push_back( &hkToMaxSegment );
}
weakVectorBosonHandedMuon::~weakVectorBosonHandedMuon()
{
// does nothing.
}
void
weakVectorBosonHandedMuon::calculateEnergiesAndFactors()
{
mQ = firstMass; // this is just for compact equations.
//mQSq = ( mQ * mQ );
//mQCu = ( mQ * mQSq );
mC = secondMass; // this is just for compact equations.
mCSq = ( mC * mC );
mCCu = ( mCSq * mC );
mVBSq = ( thirdMass * thirdMass );
mVBQu = ( mVBSq * mVBSq );
mCX = ( mC * fourthMass );
mXSq = ( fourthMass * fourthMass );
gammaCQ = ( ( mQ * mQ + mCSq ) / ( 2.0 * mC * mQ ) );
gammaCQSq = ( gammaCQ * gammaCQ );
gammaCQCu = ( gammaCQSq * gammaCQ );
gammaCQQu = ( gammaCQCu * gammaCQ );
betaCQSq = ( 1.0 - ( 1.0 / gammaCQSq ) );
betaCQ = sqrt( betaCQSq );
oneMinusBetaCQ = ( 1.0 - betaCQ );
oneMinusBetaCQSq = ( oneMinusBetaCQ * oneMinusBetaCQ );
oneMinusBetaCQCu = ( oneMinusBetaCQSq * oneMinusBetaCQ );
oneMinusBetaCQQu = ( oneMinusBetaCQCu * oneMinusBetaCQ );
onePlusBetaCQ = ( 1.0 + betaCQ );
lnOnePlusBetaCQOverOneMinusBetaCQ = log( onePlusBetaCQ / oneMinusBetaCQ );
EVB = ( ( mCSq + mVBSq - mXSq ) / ( 2.0 * mC ) );
ElMin = ( 0.5 * EVB * ( 1.0 - sqrt( 1.0 - ( mVBSq / ( EVB * EVB ) ) ) ) );
lnElMin = log( ElMin );
ElMinSq = ( ElMin * ElMin );
ElMinCu = ( ElMinSq * ElMin );
ElMinQu = ( ElMinCu * ElMin );
minimumEnergy = ( ElMin * ( mC / mQ ) );
Elk = ( ElMin * ( mQ / mC ) );
Ehk = ( mVBSq / ( 4.0 * Elk ) );
maximumEnergy = ( mVBSq / ( 4.0 * minimumEnergy ) );
if( Ehk < Elk )
/* if we're in the regime where the kinematics mean that there is no
* range of energies which can be reached for all squark-rest-frame polar
* muon momentum angles...
*/
{
// we swap the energies (borrowing currentLkToHkLinCoefficient for a
// moment) & note that we had to swap them:
currentLkToHkLinCoefficient = Elk;
Elk = Ehk;
Ehk = currentLkToHkLinCoefficient;
cosinesLimitedByEnergy = true;
// debugging:
/**std::cout << std::endl << "debugging:"
<< std::endl
<< "cosinesLimitedByEnergy = true";
std::cout << std::endl;**/
}
else
{
cosinesLimitedByEnergy = false;
// for comparison with the Mathematica notebook: underlap is Ehk > Elk
// => if( cosinesLimitedByEnergy ){ [use overlap] }
// debugging:
/**std::cout << std::endl << "debugging:"
<< std::endl
<< "cosinesLimitedByEnergy = false";
std::cout << std::endl;**/
}
//EightmCEVElMin = ( 8.0 * mC * EVB * ElMin );
//lnmQC = log( ( mQ / mC ) );
lnmVBSqOverFourElMinSq = log( ( mVBSq / ( 4.0 * ElMinSq ) ) );
//EightmCXElMinmQSq = ( 8.0 * mC * fourthMass * ElMin * mQSq );
//lnEmin = log( minimumEnergy );
//lnElk = log( Elk );
//lnEhk = log( Ehk );
//lnEmax = log( maximumEnergy );
minToLkSegment.setSegmentRange( minimumEnergy,
Elk );
lkToHkSegment.setSegmentRange( Elk,
Ehk );
hkToMaxSegment.setSegmentRange( Ehk,
maximumEnergy );
}
void
weakVectorBosonHandedMuon::calculateVvPlusJjAaAllSqSymCoefficients()
{
/* ends up in the order:
* low (MINtoLK),
* over (LKtoHK, true == cosinesLimitedByEnergy),
* under (LKtoHK, false == cosinesLimitedByEnergy),
* high (HKtoMAX)
*/
// MIN to LK:
currentMinToLkInvCoefficient = 0.0;
// right!
currentMinToLkConstCoefficient
= ( 4.0 * betaCQ * ElMinQu * gammaCQSq * mCSq * oneMinusBetaCQSq
* ( 4.0 * ElMin * ( ElMin - 2.0 * EVB ) * mC
+ EVB * mVBSq
* ( 2.0 * lnElMin - lnOnePlusBetaCQOverOneMinusBetaCQ ) ) );
// right!
currentMinToLkLogCoefficient
= ( -8.0 * betaCQ * ElMinQu * EVB * gammaCQSq * mCSq * mVBSq
* oneMinusBetaCQSq );
// right!
currentMinToLkLinCoefficient
= ( 32.0 * betaCQ * ElMinQu * EVB * gammaCQ * mCCu * oneMinusBetaCQ );
// right!
currentMinToLkLinLogCoefficient = 0.0;
// right!
currentMinToLkSqCoefficient = ( -16.0 * betaCQ * ElMinQu * mCCu );
// right!
// debugging:
/**std::cout << std::endl << "debugging:"
<< std::endl
<< "betaCQ = " << betaCQ
<< std::endl
<< "ElMinQu = " << ElMinQu
<< std::endl
<< "mCCu = " << mCCu;
std::cout << std::endl;**/
// LK to HK:
if( cosinesLimitedByEnergy )
{
currentLkToHkConstCoefficient
= ( betaCQ * ElMinSq * gammaCQSq * mCSq * oneMinusBetaCQSq
* ( 16.0 * ElMinCu * ( ElMin - 2.0 * EVB ) * mC
- mC * mVBQu
+ 8.0 * ElMin * EVB * mVBSq
* ( mC - ElMin * lnmVBSqOverFourElMinSq ) ) );
// right!
currentLkToHkLinCoefficient = 0.0;
// right!
currentLkToHkSqCoefficient = 0.0;
// right!
}
else
{
currentLkToHkConstCoefficient
= ( -8.0 * betaCQ * ElMinQu * EVB * gammaCQSq * mCSq * mVBSq
* lnOnePlusBetaCQOverOneMinusBetaCQ * oneMinusBetaCQSq );
// right!
currentLkToHkLinCoefficient
= ( 64.0 * betaCQSq * ElMinQu * EVB * gammaCQCu * mCCu
* oneMinusBetaCQSq );
// right!
currentLkToHkSqCoefficient
= ( -64.0 * betaCQSq * ElMinQu * gammaCQQu * mCCu * oneMinusBetaCQSq );
// right!
}
// HK to MAX:
currentHkToMaxInvCoefficient = 0.0;
// right!
currentHkToMaxConstCoefficient
= ( betaCQ * ElMinSq * gammaCQSq * mCSq * mVBSq
* ( 4.0 * ElMin * EVB
* ( 2.0 * ( mC - ElMin * ( lnElMin + lnmVBSqOverFourElMinSq ) )
- ElMin * lnOnePlusBetaCQOverOneMinusBetaCQ )
- mC * mVBSq ) * oneMinusBetaCQSq );