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diff --git a/Models/UED/UEDBase.cc b/Models/UED/UEDBase.cc
--- a/Models/UED/UEDBase.cc
+++ b/Models/UED/UEDBase.cc
@@ -1,387 +1,399 @@
// -*- C++ -*-
//
// This is the implementation of the non-inlined, non-templated member
// functions of the UEDBase class.
//
#include "UEDBase.h"
#include "ThePEG/Interface/ClassDocumentation.h"
#include "ThePEG/Persistency/PersistentOStream.h"
#include "ThePEG/Persistency/PersistentIStream.h"
#include "ThePEG/Interface/Reference.h"
#include "ThePEG/Interface/Parameter.h"
+#include "ThePEG/Interface/Switch.h"
#include "ThePEG/Repository/Repository.h"
#include "ThePEG/Repository/CurrentGenerator.h"
using namespace Herwig;
UEDBase::UEDBase() : theRadCorr(true), theInvRadius(500.*GeV),
theLambdaR(20.), theMbarH(), theSinThetaOne(0.),
theVeV(246.*GeV) {}
void UEDBase::doinit() throw(InitException) {
StandardModel::doinit();
//create fresh BSM info file so it can be appended to later
//when decaymodes have been created
string name = CurrentGenerator::current().filename() +
string("-BSMModelInfo.out");
ofstream dummy(name.c_str());
//level-1 masses and mixing angle
calculateKKMasses(1);
writeSpectrum();
//add the level-1 vertices.
addVertex(theF1F1Z0Vertex);
addVertex(theF1F1G0Vertex);
addVertex(theF1F0G1Vertex);
addVertex(theG1G1G0Vertex);
addVertex(theG0G0G1G1Vertex);
addVertex(theF1F1P0Vertex);
addVertex(theF1F1W0Vertex);
addVertex(theF1F0W1Vertex);
addVertex(theP0H1H1Vertex);
addVertex(theZ0H1H1Vertex);
addVertex(theW0A1H1Vertex);
addVertex(theZ0A1h1Vertex);
addVertex(theW0W1W1Vertex);
}
void UEDBase::persistentOutput(PersistentOStream & os) const {
os << theRadCorr << ounit(theInvRadius, GeV) << theLambdaR
<< theF1F1Z0Vertex << theF1F1G0Vertex << theF1F0G1Vertex
<< theG1G1G0Vertex << theG0G0G1G1Vertex << theF1F1P0Vertex
<< theF1F1W0Vertex << theF1F0W1Vertex << theP0H1H1Vertex
<< theZ0H1H1Vertex << theW0A1H1Vertex << theZ0A1h1Vertex
<< theW0W1W1Vertex << ounit(theVeV,GeV) << ounit(theMbarH, GeV)
<< theSinThetaOne;
}
void UEDBase::persistentInput(PersistentIStream & is, int) {
is >> theRadCorr >> iunit(theInvRadius, GeV) >> theLambdaR
>> theF1F1Z0Vertex >> theF1F1G0Vertex >> theF1F0G1Vertex
>> theG1G1G0Vertex >> theG0G0G1G1Vertex >> theF1F1P0Vertex
>> theF1F1W0Vertex >> theF1F0W1Vertex >> theP0H1H1Vertex
>> theZ0H1H1Vertex >> theW0A1H1Vertex >> theZ0A1h1Vertex
>> theW0W1W1Vertex >> iunit(theVeV,GeV) >> iunit(theMbarH, GeV)
>> theSinThetaOne;
}
ClassDescription<UEDBase> UEDBase::initUEDBase;
// Definition of the static class description member.
void UEDBase::Init() {
static ClassDocumentation<UEDBase> documentation
("This class implements/stores the necessary information for the simulation"
" of a Universal Extra Dimensions model.");
- static Parameter<UEDBase,bool> interfaceRadiativeCorrections
+ static Switch<UEDBase,bool> interfaceRadiativeCorrections
("RadiativeCorrections",
- "Switch for calculating the radiative corrections to the KK masses",
- &UEDBase::theRadCorr, true, 0, 0,
- false, false, Interface::nolimits);
+ "Calculate the radiative corrections to the masses",
+ &UEDBase::theRadCorr, true, false, false);
+ static SwitchOption interfaceRadiativeCorrectionsYes
+ (interfaceRadiativeCorrections,
+ "Yes",
+ "Calculate the radiative corrections to the masses",
+ true);
+ static SwitchOption interfaceRadiativeCorrectionsNo
+ (interfaceRadiativeCorrections,
+ "No",
+ "Leave the masses of the KK particles as n/R",
+ false);
static Parameter<UEDBase,Energy> interfaceInverseRadius
("InverseRadius",
"The inverse radius of the compactified dimension ",
&UEDBase::theInvRadius, GeV, 500.*GeV, 0.*GeV, 0*GeV,
true, false, Interface::nolimits);
static Parameter<UEDBase,double> interfaceLambdaR
("LambdaR",
"The product of the cut-off scale and the radius of compactification",
&UEDBase::theLambdaR, 20.0, 0.0, 0,
false, false, Interface::lowerlim);
static Parameter<UEDBase,Energy> interfaceBoundaryMass
("BoundaryMass",
"The boundary mass for the Higgs",
&UEDBase::theMbarH, GeV, 0.0*GeV, 0.0*GeV, 0*GeV,
false, false, Interface::lowerlim);
static Parameter<UEDBase,Energy> interfaceVeV
("VeV",
"The vacuum expectation value of the Higgs field",
&UEDBase::theVeV, GeV, 246.*GeV, 0*GeV, 0*GeV,
true, false, Interface::nolimits);
static Reference<UEDBase,Helicity::FFVVertex> interfaceF1F1Z
("Vertex/F1F1Z",
"The F1F1Z UED Vertex",
&UEDBase::theF1F1Z0Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::FFVVertex> interfaceF1F1G0
("Vertex/F1F1G0",
"The F1F1G UED Vertex",
&UEDBase::theF1F1G0Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::FFVVertex> interfaceF1F0G1
("Vertex/F1F0G1",
"The F1F0G0 UED Vertex",
&UEDBase::theF1F0G1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VVVVertex> interfaceG1G1G0
("Vertex/G1G1G0",
"The G1G1G0 UED Vertex",
&UEDBase::theG1G1G0Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VVVVVertex> interfaceG0G0G1G1
("Vertex/G0G0G1G1",
"The G0G0G1G1 UED Vertex",
&UEDBase::theG0G0G1G1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::FFVVertex> interfaceF1F1P
("Vertex/F1F1P",
"The F1F1P UED Vertex",
&UEDBase::theF1F1P0Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::FFVVertex> interfaceF1F1W
("Vertex/F1F1W",
"The F1F1W UED Vertex",
&UEDBase::theF1F1W0Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::FFVVertex> interfaceF1F0W1
("Vertex/F1F0W1",
"The F1F0W1 UED Vertex",
&UEDBase::theF1F0W1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VSSVertex> interfaceP0H1H1
("Vertex/P0H1H1",
"The P0H1H1 UED Vertex",
&UEDBase::theP0H1H1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VSSVertex> interfaceZ0H1H1
("Vertex/Z0H1H1",
"The Z0H1H1 UED Vertex",
&UEDBase::theZ0H1H1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VSSVertex> interfaceW0A1H1
("Vertex/W0A1H1",
"The W0A1H1 UED Vertex",
&UEDBase::theW0A1H1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VSSVertex> interfaceZ0A1h1
("Vertex/Z0A1h1",
"The W0A1H1 UED Vertex",
&UEDBase::theZ0A1h1Vertex, false, false, true, false, false);
static Reference<UEDBase,Helicity::VVVVertex> interfaceW0W1W1
("Vertex/W0W1W1",
"The W0W1W1 UED Vertex",
&UEDBase::theW0W1W1Vertex, false, false, true, false, false);
}
void UEDBase::calculateKKMasses(const unsigned int n) throw(InitException) {
if(n == 0)
throw InitException() << "UEDBase::resetKKMasses - "
<< "Trying to reset masses with KK number == 0!"
<< Exception::warning;
if(theRadCorr) {
fermionMasses(n);
bosonMasses(n);
}
else {
- cerr << "Warning! Radiative corrections have been turned off."
- << " Therefore the particle spectrum will be degenerate and "
- << "no decays will occur.\n";
+ cerr << "WARNING!! Radiative corrections to particle masses have been "
+ << "turned off. The masses will be set to (n/R + m_sm)^1/2 and "
+ << "the spectrum will be highly degenerate so that no decays "
+ << "will occur. This is only meant to be used for debugging "
+ << "purposes.\n";
//set masses to tree level for each kk mode
long level1 = 5000000 + n*100000;
long level2 = 6000000 + n*100000;
Energy2 ndmass2 = sqr(n*theInvRadius);
for(unsigned int i = 1; i < 38; ++i) {
if(i == 7 || i == 17) i += 4;
if(i == 26) i += 10;
Energy kkmass = sqrt( ndmass2 + sqr(getParticleData(i)->mass()) );
resetMass(level1 + i, kkmass);
if( i < 7 || i == 11 || i == 13 || i == 15 )
resetMass(level2 + i, kkmass);
}
}
}
void UEDBase::bosonMasses(const unsigned int n) {
// Common constants
const Energy2 invRad2 = theInvRadius*theInvRadius;
const double g_em2 = 4.*Constants::pi*alphaEM(invRad2);
const double g_s2 = 4.*Constants::pi*alphaS(invRad2);
const double g_W2 = g_em2/sin2ThetaW();
//Should probably use a function to calculate zeta.
const double zeta3 = 1.20206;
const Energy2 nmass2 = sqr(n*theInvRadius);
const double pi2 = sqr(Constants::pi);
const double norm = 1./16./pi2;
const double nnlogLR = n*n*log(theLambdaR);
long level = 5000000 + n*100000;
//gluon
Energy2 deltaGB = g_s2*invRad2*norm*(23.*nnlogLR - 3.*zeta3/2./pi2 );
resetMass(level + 21, sqrt(nmass2 + deltaGB));
//W+/-
Energy2 deltaGW = g_W2*invRad2*norm*( 15.*nnlogLR - 5.*zeta3/2./pi2 );
Energy2 mw2 = sqr(getParticleData(24)->mass());
resetMass(level + 24, sqrt(mw2 + nmass2 + deltaGW));
//Z and gamma are a mixture of Bn and W3n
deltaGB = -g_em2*invRad2*norm*( 39.*zeta3/2./pi2 + nnlogLR/3. );
Energy2 mz2 = sqr(getParticleData(23)->mass());
Energy2 fp = 0.5*(mz2 + deltaGB + deltaGW + 2.*nmass2);
Energy2 sp = 0.5*sqrt( sqr(deltaGB - deltaGW - 2.*mw2 + mz2)
- 4.*mw2*(mw2 - mz2) );
resetMass(level + 22, sqrt(fp - sp));
resetMass(level + 23, sqrt(fp + sp));
//mixing angle will now depend on both Z* and gamma* mass
//Derived expression:
//
// cos^2_theta_N = ( (n/R)^2 + delta_GW + mw^2 - m_gam*^2)/(m_z*^2 - m_gam*^2)
//
double cn2 = (nmass2 + deltaGW + mw2 - fp + sp)/2./sp;
double sn = sqrt(1. - cn2);
theMixingAngles.insert(make_pair(n, sn));
if( n == 1 ) theSinThetaOne = sn;
//scalars
Energy2 mh2 = sqr(getParticleData(25)->mass());
double lambda_H = mh2/theVeV/theVeV;
deltaGB = nnlogLR*norm*invRad2*(3.*g_W2 + (3.*g_em2/2.) - 2.*lambda_H)
+ sqr(theMbarH);
//H0
Energy2 new_m2 = nmass2 + deltaGB;
resetMass(level + 25, sqrt( mh2 + new_m2 ));
//A0
resetMass(level + 36, sqrt( mz2 + new_m2 ));
//H+
resetMass(level + 37, sqrt( mw2 + new_m2 ));
}
void UEDBase::fermionMasses(const unsigned int n) {
const Energy2 invRad2 = theInvRadius*theInvRadius;
const double g_em2 = 4.*Constants::pi*alphaEM(invRad2);
const double g_s2 = 4.*Constants::pi*alphaS(invRad2);
const double g_W2 = g_em2/sin2ThetaW();
const Energy nmass = n*theInvRadius;
const Energy norm =
nmass*log(theLambdaR)/16./Constants::pi/Constants::pi;
const Energy topMass = getParticleData(6)->mass();
const double ht = sqrt(2)*topMass/theVeV;
//doublets
Energy deltaL = norm*(6.*g_s2 + (27.*g_W2/8.) + (g_em2/8.));
Energy deltaQ = deltaL;
Energy2 shift = sqr(nmass + deltaL);
long level = 5000000 + n*100000;
for(long i = 1; i < 17; ++i) {
if(i == 6) {
i += 5;
deltaL = norm*( (27.*g_W2/8.) + (9.*g_em2/8.) );
shift = sqr(nmass + deltaL);
}
Energy2 new_m2 = sqr(getParticleData(i)->mass()) + shift;
resetMass(level + i, sqrt(new_m2));
}
//singlet shifts
const Energy deltaU = norm*(6.*g_s2 + 2.*g_em2);
const Energy deltaD = norm*(6.*g_s2 + 0.5*g_em2);
const Energy2 shiftU = sqr(nmass + deltaU);
const Energy2 shiftD = sqr(nmass + deltaD);
//Top quarks seperately as they have different corrections
const Energy2 mt2 = sqr(topMass);
const Energy delta_Q3 = -3.*ht*ht*norm/2.;
const Energy deltaTD = deltaQ + delta_Q3;
const Energy deltaTS = deltaU + 2.*delta_Q3;
Energy second_term =
0.5*sqrt( sqr(2.*nmass + deltaTS + deltaTD) + 4.*mt2 );
//doublet
resetMass(level + 6, abs(0.5*(deltaTD - deltaTS) - second_term) );
//singlet
level += 1000000;
resetMass(level + 6, 0.5*(deltaTD - deltaTS) + second_term);
// others
//lepton
Energy delta = 9.*norm*g_em2/2.;
shift = sqr(nmass + delta);
for(long i = 1; i < 17; ) {
if(i == 6) i += 5;
Energy2 new_m2, smMass2(sqr(getParticleData(i)->mass()));
if(i < 6) {
if( i % 2 == 0)
new_m2 = smMass2 + shiftU;
else
new_m2 = smMass2 + shiftD;
resetMass(level + i, sqrt(new_m2));
++i;
}
else {
resetMass(level + i, sqrt(smMass2 + shift));
i += 2;
}
}
}
void UEDBase::resetMass(long id, Energy mass) throw(InitException) {
theMasses.push_back(make_pair(id, mass));
tPDPtr particle = getParticleData(id);
if(!particle) {
throw InitException() << "UEDBase::resetMass - Trying to reset a mass for "
<< "a ParticleData object that does not exist. ID: "
<< id << Exception::warning;
return;
}
//find the correct interface
const InterfaceBase * ifc =
Repository::FindInterface(particle, "NominalMass");
if(!ifc)
throw InitException() << "UEDBase::resetMass - There was an error while "
<< "retrieving the NominalMass interface for "
<< particle->fullName()
<< Exception::abortnow;
//put value into a stream
ostringstream oss;
oss << ounit(mass, GeV);
if(!oss)
throw InitException() << "UEDBase::resetMass - There was an error while "
<< "reading the new mass into a stream for "
<< particle->fullName()
<< Exception::abortnow;
ifc->exec(*particle, "set", oss.str());
}
void UEDBase::writeSpectrum() {
sort(theMasses.begin(), theMasses.end(), lowerMass);
string filename = CurrentGenerator::current().filename() +
string("-BSMModelInfo.out");
ofstream ofs(filename.c_str(), ios::out|ios::app);
ofs << "# MUED Model Particle Spectrum\n"
<< "# R^-1: " << theInvRadius/GeV << " GeV\n"
<< "# Lambda * R: " << theLambdaR << "\n"
<< "# Higgs Mass: " << getParticleData(25)->mass()/GeV << " GeV"
<< endl;
ofs << "#\n# ID\t\t\tMass(GeV)\n";
while (!theMasses.empty()) {
IDMassPair tmp = theMasses.back();
ofs << tmp.first << "\t\t\t" << tmp.second/GeV << endl;
theMasses.pop_back();
}
ofs << "#\n";
}
double UEDBase::sinThetaN(const unsigned int n) const {
WAMap::const_iterator pos = theMixingAngles.find(n);
if(pos != theMixingAngles.end())
return pos->second;
else {
throw Exception() << "UEDBase::sinThetaN() - A mixing angle has "
<< "been requested for a level that does not "
<< "exist. Check that the radiative corrections "
<< "for the " << n << "th level have been "
<< "calculated." << Exception::warning;
return 0.0;
}
}

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