file src/sminputs.cpp
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Detailed Description
Author: Ben Farmer (benjamin.farmer@fysik.su.se)
Date: 2015 Mar
Helper functions for SMInputs struct
Authors:
Source code
// GAMBIT: Global and Modular BSM Inference Tool
// *********************************************
/// \file
///
/// Helper functions for SMInputs struct
///
/// *********************************************
///
/// Authors:
/// <!-- add name and date if you modify -->
///
/// \author Ben Farmer
/// (benjamin.farmer@fysik.su.se)
/// \date 2015 Mar
///
/// *********************************************
#include "gambit/Utils/standalone_error_handlers.hpp"
#include "gambit/Elements/sminputs.hpp"
#include "gambit/Elements/mssm_slhahelp.hpp"
namespace Gambit
{
// Create an SMInputs struct from an SLHAea object
SMInputs::SMInputs(SLHAea::Coll& data)
{
// Defaults set from PDG 2014.
// * from http://pdg.lbl.gov/2014/reviews/rpp2014-rev-standard-model.pdf
// ** from http://pdg.lbl.gov/2014/reviews/rpp2014-rev-phys-constants.pdf
// § from http://pdg.lbl.gov/2014/tables/rpp2014-sum-leptons.pdf
// @ from http://pdg.lbl.gov/2014/tables/rpp2014-sum-quarks.pdf
// (for reference: http://pdg.lbl.gov/2014/reviews/rpp2014-rev-quark-masses.pdf)
// $ from http://arxiv.org/abs/1403.4427
// ! from http://pdg.lbl.gov/2014/listings/rpp2014-list-z-boson.pdf
// & from http://pdg.lbl.gov/2014/listings/rpp2014-list-b-quark.pdf
// % from http://pdg.lbl.gov/2014/listings/rpp2014-list-c-quark.pdf
// ^ from http://pdg.lbl.gov/2014/reviews/rpp2014-rev-qcd.pdf
// If more than one source listed, values are equal in both sources.
// Values in GeV where units apply.
// SLHA1
alphainv = SLHAea_get(data,"SMINPUTS",1 , 1.27940010E+02); // alpha^{-1}(mZ)^MSbar *
GF = SLHAea_get(data,"SMINPUTS",2 , 1.16637870E-05); // G_Fermi **
alphaS = SLHAea_get(data,"SMINPUTS",3 , 1.18500000E-01); // alpha_s(mZ)^MSbar ^
mZ = SLHAea_get(data,"SMINPUTS",4 , 9.11876000E+01); // mZ(pole) !
mBmB = SLHAea_get(data,"SMINPUTS",5 , 4.18000000E+00); // mb(mb)^MSbar &
mT = SLHAea_get(data,"SMINPUTS",6 , 1.73340000E+02); // mtop(pole) $
mTau = SLHAea_get(data,"SMINPUTS",7 , 1.77682000E+00); // mtau(pole) §
mNu3 = SLHAea_get(data,"SMINPUTS",8 , 0); // mnu3(pole)
// SLHA2
mE = SLHAea_get(data,"SMINPUTS",11, 5.10998928E-04); // melectron(pole) § **
mNu1 = SLHAea_get(data,"SMINPUTS",12, 0); // mnu1(pole)
mMu = SLHAea_get(data,"SMINPUTS",13, 1.05658372E-01); // mmuon(pole) §
mNu2 = SLHAea_get(data,"SMINPUTS",14, 0); // mnu2(pole)
mD = SLHAea_get(data,"SMINPUTS",21, 4.80000000E-03); // md(2 GeV)^MSbar @
mU = SLHAea_get(data,"SMINPUTS",22, 2.30000000E-03); // mu(2 GeV)^MSbar @
mS = SLHAea_get(data,"SMINPUTS",23, 9.50000000E-02); // ms(2 GeV)^MSbar @
mCmC = SLHAea_get(data,"SMINPUTS",24, 1.27500000E+00); // mc(mc)^MSbar %
// W boson mass
// This is an output according to SLHA, however in cases where a spectrum generator doesn't run we
// will still need it, for example in the SMSimpleSpec wrapper. Default from numerical-constants.hpp.
mW = SLHAea_get(data,"MASS", 24, mw_central_observed);
// CKM parameters
// from http://pdg.lbl.gov/2014/reviews/rpp2014-rev-ckm-matrix.pdf
CKM.lambda = SLHAea_get(data,"VCKMIN",1, 0.22537);
CKM.A = SLHAea_get(data,"VCKMIN",2, 0.814);
CKM.rhobar = SLHAea_get(data,"VCKMIN",3, 0.117);
CKM.etabar = SLHAea_get(data,"VCKMIN",4, 0.353);
// PMNS parameters
// from http://pdg.lbl.gov/2014/tables/rpp2014-sum-leptons.pdf
// see also http://pdg.lbl.gov/2014/reviews/rpp2014-rev-neutrino-mixing.pdf
// Note: angles given as x = sin^2(2*theta), so I have converted them as:
// theta = 0.5*arcsin(sqrt(x))
// CP-violating phases not measured, so I set them to zero.
PMNS.theta12 = SLHAea_get(data,"UPMNSIN",1, 0.58376); // the solar angle
PMNS.theta23 = SLHAea_get(data,"UPMNSIN",2, 0.76958); // the atmospheric mixing angle
PMNS.theta13 = SLHAea_get(data,"UPMNSIN",3, 0.15495);
PMNS.delta13 = SLHAea_get(data,"UPMNSIN",4, 0); // the Dirac CP-violating phase
PMNS.alpha1 = SLHAea_get(data,"UPMNSIN",5, 0); // the first Majorana CP-violating phase
PMNS.alpha2 = SLHAea_get(data,"UPMNSIN",6, 0); // the second CP-violating Majorana phase
}
// Return a fresh SLHAea object containing the contents of this object.
SLHAstruct SMInputs::getSLHAea() const
{
SLHAstruct slha;
this->add_to_SLHAea(slha);
slhahelp::add_MODSEL_disclaimer(slha, "spectrum");
return slha;
}
// Add the contents of this object to an existing SLHAea object.
void SMInputs::add_to_SLHAea(SLHAea::Coll& data) const
{
// SMINPUTS block
SLHAea_add(data,"SMINPUTS",1 , alphainv, "alpha^{-1}(mZ)^MSbar");
SLHAea_add(data,"SMINPUTS",2 , GF , "G_Fermi" );
SLHAea_add(data,"SMINPUTS",3 , alphaS , "alpha_s(mZ)^MSbar" );
SLHAea_add(data,"SMINPUTS",4 , mZ , "mZ(pole)" );
SLHAea_add(data,"SMINPUTS",5 , mBmB , "mb(mb)^MSbar" );
SLHAea_add(data,"SMINPUTS",6 , mT , "mtop(pole)" );
SLHAea_add(data,"SMINPUTS",7 , mTau , "mtau(pole)" );
SLHAea_add(data,"SMINPUTS",8 , mNu3 , "mnu3(pole)" );
SLHAea_add(data,"SMINPUTS",11, mE , "melectron(pole)" );
SLHAea_add(data,"SMINPUTS",12, mNu1 , "mnu1(pole)" );
SLHAea_add(data,"SMINPUTS",13, mMu , "mmuon(pole)" );
SLHAea_add(data,"SMINPUTS",14, mNu2 , "mnu2(pole)" );
SLHAea_add(data,"SMINPUTS",21, mD , "md(2 GeV)^MSbar" );
SLHAea_add(data,"SMINPUTS",22, mU , "mu(2 GeV)^MSbar" );
SLHAea_add(data,"SMINPUTS",23, mS , "ms(2 GeV)^MSbar" );
SLHAea_add(data,"SMINPUTS",24, mCmC , "mc(mc)^MSbar" );
// VCKMIN block
SLHAea_add(data,"VCKMIN",1, CKM.lambda, "lambda");
SLHAea_add(data,"VCKMIN",2, CKM.A , "A" );
SLHAea_add(data,"VCKMIN",3, CKM.rhobar, "rhobar");
SLHAea_add(data,"VCKMIN",4, CKM.etabar, "etabar");
// UPMNSIN block
SLHAea_add(data,"UPMNSIN",1, PMNS.theta12, "theta12 (solar angle)");
SLHAea_add(data,"UPMNSIN",2, PMNS.theta23, "theta23 (atmospheric mixing angle)");
SLHAea_add(data,"UPMNSIN",3, PMNS.theta13, "theta13");
SLHAea_add(data,"UPMNSIN",4, PMNS.delta13, "delta13 (Dirac CP-violating phase)");
SLHAea_add(data,"UPMNSIN",5, PMNS.alpha1 , "alpha1 (first Majorana CP-violating phase)" );
SLHAea_add(data,"UPMNSIN",6, PMNS.alpha2 , "alpha2 (second CP-violating Majorana phase)");
// MASS block
SLHAea_add(data,"MASS", 24, mW, "mW(pole)");
return;
}
} // end namespace Gambit
Updated on 2024-07-18 at 13:53:34 +0000