PARTONS  
PARtonic Tomography Of Nucleon Software
Variables
PARTONS::Constant Namespace Reference

Definition of useful mathematical, physical, etc. constants. More...

Variables

const double PI = 3.14159265358979323846
 Value of \(\pi\). More...
 
const double ZETA_3 = 1.2020569031595942
 Apéry's constant (value of Riemann zeta function \(\zeta(3)\)). More...
 
const double SPEED_OF_LIGHT = 299792458
 Speed of light \(c\) in \(\mathrm{m}/\mathrm{s}\) [1]. More...
 
const double PLANCK_CONSTANT = 6.62606896 * 1.e-34
 Planck constant \(h\) in \(\mathrm{J}\cdot\mathrm{s}\) [1], [2]. More...
 
const double PLANCK_CONSTANT_REDUCED = 6.58211899 * 1.e-16
 Planck constant reduced \(h/2\pi\) in \(\mathrm{eV}\cdot\mathrm{s}\) [1]. More...
 
const double FINE_STRUCTURE_CONSTANT = 1. / 137.035999679
 Fine-structure constant \(\alpha\) [1]. More...
 
const double HBarC = 197.3269631
 Conversion constant \(\hbar c\) in \(\mathrm{MeV}\cdot\mathrm{fm}\) [1]. More...
 
const double HBarC2 = 0.389379304
 Conversion constant \((\hbar c)^2\) in \(\mathrm{GeV}^2\cdot\mathrm{mbarn}\) [1]. More...
 
const double CONV_GEVm1_TO_FM = 0.1973269631
 Conversion constant \(\mathrm{GeV}^{-1} \rightarrow \mathrm{fm}\). More...
 
const double CONV_GEVm2_TO_NBARN = 0.389379304e+6
 Conversion constant \(\mathrm{GeV}^{-2} \rightarrow \mathrm{nbarn}\). More...
 
const double CONV_GEVm2_TO_PBARN = 0.389379304e+9
 Conversion constant \(\mathrm{GeV}^{-2} \rightarrow \mathrm{pbarn}\). More...
 
const double PROTON_MASS = 0.938272013
 Proton mass \(m_{p}\) in \(\mathrm{GeV}\) [20]. More...
 
const double ELECTRON_MASS = 0.510998910e-3
 Electron mass \(m_{e}\) in \(\mathrm{GeV}\) [1]. More...
 
const double MUON_MASS = 105.658367e-3
 Muon mass \(m_{\mu}\) in \(\mathrm{GeV}\) [1]. More...
 
const double TAU_MASS = 1.77684
 Tau mass \(m_{\tau}\) in \(\mathrm{GeV}\) [1]. More...
 
const double QUARK_DOWN_MASS = 0.0049
 Down quark mass \(m_{d}\) in \(\mathrm{GeV}\) [20]. More...
 
const double QUARK_UP_MASS = 0.0024
 Up quark mass \(m_{u}\) in \(\mathrm{GeV}\) [20]. More...
 
const double QUARK_STRANGE_MASS = 0.1
 Strange quark mass \(m_{s}\) in \(\mathrm{GeV}\) [20]. More...
 
const double QUARK_CHARM_MASS = 1.29
 Charm quark mass \(m_{c}\) in \(\mathrm{GeV}\) [20]. More...
 
const double QUARK_BOTTOM_MASS = 4.19
 Bottom quark mass \(m_{b}\) in \(\mathrm{GeV}\) [20]. More...
 
const double QUARK_TOP_MASS = 172.9
 Top quark mass \(m_{t}\) in \(\mathrm{GeV}\) [20]. More...
 
const double PI_ZERO_MASS = 0.1349766
 Meson \(\pi^0\) mass \(m_{\pi^0}\) in \(\mathrm{GeV}\) [20]. More...
 
const double Z_BOSON_MASS = 91.1876
 Boson \(Z\) mass \(m_{Z}\) in \(\mathrm{GeV}\) [20]. More...
 
const double D_ELEC_CHARGE = -1. / 3.
 Electric charge of down quark in units of \(e\). More...
 
const double U_ELEC_CHARGE = 2. / 3.
 Electric charge of up quark in units of \(e\). More...
 
const double S_ELEC_CHARGE = -1. / 3.
 Electric charge of strange quark in units of \(e\). More...
 
const double C_ELEC_CHARGE = 2. / 3.
 Electric charge of charm quark in units of \(e\). More...
 
const double B_ELEC_CHARGE = -1. / 3.
 Electric charge of bottom quark in units of \(e\). More...
 
const double T_ELEC_CHARGE = 2. / 3.
 Electric charge of top quark in units of \(e\). More...
 
const double D2_ELEC_CHARGE = 1. / 9.
 Square of electric charge of down quark in units of \(e\). More...
 
const double U2_ELEC_CHARGE = 4. / 9.
 Square of electric charge of up quark in units of \(e\). More...
 
const double S2_ELEC_CHARGE = 1. / 9.
 Square of electric charge of strange quark in units of \(e\). More...
 
const double C2_ELEC_CHARGE = 4. / 9.
 Square of electric charge of charm quark in units of \(e\). More...
 
const double B2_ELEC_CHARGE = 1. / 9.
 Square of electric charge of bottom quark in units of \(e\). More...
 
const double T2_ELEC_CHARGE = 4. / 9.
 Square of electric charge of top quark in units of \(e\). More...
 
const double POSITRON_CHARGE = 0.30282211985966434
 Positron charge \(e\) in natural units ( \(e^2 = 4\pi\alpha\)). More...
 
const std::complex< double > COMPLEX_UNIT = std::complex<double>(0., 1.)
 Complex unit. More...
 
const double MESON_RHOMINUS_MASS = 775.26e-3
 \(\rho^-\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_RHO0_MASS = 775.26e-3
 \(\rho^0\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_RHOPLUS_MASS = 775.26e-3
 \(\rho^+\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_OMEGA_MASS = 782.65e-3
 \(\omega\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_PHI_MASS = 1019.461e-3
 \(\phi\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_JPSI_MASS = 3096.900e-3
 \(J/\Psi\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_UPSILON_MASS = 9460.30e-3
 \(\Upsilon\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_PIMINUS_MASS = 139.57039e-3
 \(\pi^-\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_PI0_MASS = 134.9768e-3
 \(\pi^0\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 
const double MESON_PIPLUS_MASS = 139.57039e-3
 \(\pi^+\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020). More...
 

Detailed Description

Definition of useful mathematical, physical, etc. constants.

This header file defines a set of useful mathematical, physical, etc. constants to be used in PARTONS.

Variable Documentation

◆ B2_ELEC_CHARGE

const double PARTONS::Constant::B2_ELEC_CHARGE = 1. / 9.

Square of electric charge of bottom quark in units of \(e\).

◆ B_ELEC_CHARGE

const double PARTONS::Constant::B_ELEC_CHARGE = -1. / 3.

Electric charge of bottom quark in units of \(e\).

◆ C2_ELEC_CHARGE

const double PARTONS::Constant::C2_ELEC_CHARGE = 4. / 9.

Square of electric charge of charm quark in units of \(e\).

◆ C_ELEC_CHARGE

const double PARTONS::Constant::C_ELEC_CHARGE = 2. / 3.

Electric charge of charm quark in units of \(e\).

◆ COMPLEX_UNIT

const std::complex<double> PARTONS::Constant::COMPLEX_UNIT = std::complex<double>(0., 1.)

Complex unit.

◆ CONV_GEVm1_TO_FM

const double PARTONS::Constant::CONV_GEVm1_TO_FM = 0.1973269631

Conversion constant \(\mathrm{GeV}^{-1} \rightarrow \mathrm{fm}\).

◆ CONV_GEVm2_TO_NBARN

const double PARTONS::Constant::CONV_GEVm2_TO_NBARN = 0.389379304e+6

Conversion constant \(\mathrm{GeV}^{-2} \rightarrow \mathrm{nbarn}\).

◆ CONV_GEVm2_TO_PBARN

const double PARTONS::Constant::CONV_GEVm2_TO_PBARN = 0.389379304e+9

Conversion constant \(\mathrm{GeV}^{-2} \rightarrow \mathrm{pbarn}\).

◆ D2_ELEC_CHARGE

const double PARTONS::Constant::D2_ELEC_CHARGE = 1. / 9.

Square of electric charge of down quark in units of \(e\).

◆ D_ELEC_CHARGE

const double PARTONS::Constant::D_ELEC_CHARGE = -1. / 3.

Electric charge of down quark in units of \(e\).

◆ ELECTRON_MASS

const double PARTONS::Constant::ELECTRON_MASS = 0.510998910e-3

Electron mass \(m_{e}\) in \(\mathrm{GeV}\) [1].

◆ FINE_STRUCTURE_CONSTANT

const double PARTONS::Constant::FINE_STRUCTURE_CONSTANT = 1. / 137.035999679

Fine-structure constant \(\alpha\) [1].

◆ HBarC

const double PARTONS::Constant::HBarC = 197.3269631

Conversion constant \(\hbar c\) in \(\mathrm{MeV}\cdot\mathrm{fm}\) [1].

◆ HBarC2

const double PARTONS::Constant::HBarC2 = 0.389379304

Conversion constant \((\hbar c)^2\) in \(\mathrm{GeV}^2\cdot\mathrm{mbarn}\) [1].

◆ MESON_JPSI_MASS

const double PARTONS::Constant::MESON_JPSI_MASS = 3096.900e-3

\(J/\Psi\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_OMEGA_MASS

const double PARTONS::Constant::MESON_OMEGA_MASS = 782.65e-3

\(\omega\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_PHI_MASS

const double PARTONS::Constant::MESON_PHI_MASS = 1019.461e-3

\(\phi\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_PI0_MASS

const double PARTONS::Constant::MESON_PI0_MASS = 134.9768e-3

\(\pi^0\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_PIMINUS_MASS

const double PARTONS::Constant::MESON_PIMINUS_MASS = 139.57039e-3

\(\pi^-\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_PIPLUS_MASS

const double PARTONS::Constant::MESON_PIPLUS_MASS = 139.57039e-3

\(\pi^+\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_RHO0_MASS

const double PARTONS::Constant::MESON_RHO0_MASS = 775.26e-3

\(\rho^0\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_RHOMINUS_MASS

const double PARTONS::Constant::MESON_RHOMINUS_MASS = 775.26e-3

\(\rho^-\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_RHOPLUS_MASS

const double PARTONS::Constant::MESON_RHOPLUS_MASS = 775.26e-3

\(\rho^+\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MESON_UPSILON_MASS

const double PARTONS::Constant::MESON_UPSILON_MASS = 9460.30e-3

\(\Upsilon\) mass in \(\mathrm{GeV}\) Phys. 2020, 083C01 (2020).

◆ MUON_MASS

const double PARTONS::Constant::MUON_MASS = 105.658367e-3

Muon mass \(m_{\mu}\) in \(\mathrm{GeV}\) [1].

◆ PI

const double PARTONS::Constant::PI = 3.14159265358979323846

Value of \(\pi\).

◆ PI_ZERO_MASS

const double PARTONS::Constant::PI_ZERO_MASS = 0.1349766

Meson \(\pi^0\) mass \(m_{\pi^0}\) in \(\mathrm{GeV}\) [20].

◆ PLANCK_CONSTANT

const double PARTONS::Constant::PLANCK_CONSTANT = 6.62606896 * 1.e-34

Planck constant \(h\) in \(\mathrm{J}\cdot\mathrm{s}\) [1], [2].

◆ PLANCK_CONSTANT_REDUCED

const double PARTONS::Constant::PLANCK_CONSTANT_REDUCED = 6.58211899 * 1.e-16

Planck constant reduced \(h/2\pi\) in \(\mathrm{eV}\cdot\mathrm{s}\) [1].

◆ POSITRON_CHARGE

const double PARTONS::Constant::POSITRON_CHARGE = 0.30282211985966434

Positron charge \(e\) in natural units ( \(e^2 = 4\pi\alpha\)).

◆ PROTON_MASS

const double PARTONS::Constant::PROTON_MASS = 0.938272013

Proton mass \(m_{p}\) in \(\mathrm{GeV}\) [20].

◆ QUARK_BOTTOM_MASS

const double PARTONS::Constant::QUARK_BOTTOM_MASS = 4.19

Bottom quark mass \(m_{b}\) in \(\mathrm{GeV}\) [20].

◆ QUARK_CHARM_MASS

const double PARTONS::Constant::QUARK_CHARM_MASS = 1.29

Charm quark mass \(m_{c}\) in \(\mathrm{GeV}\) [20].

◆ QUARK_DOWN_MASS

const double PARTONS::Constant::QUARK_DOWN_MASS = 0.0049

Down quark mass \(m_{d}\) in \(\mathrm{GeV}\) [20].

◆ QUARK_STRANGE_MASS

const double PARTONS::Constant::QUARK_STRANGE_MASS = 0.1

Strange quark mass \(m_{s}\) in \(\mathrm{GeV}\) [20].

◆ QUARK_TOP_MASS

const double PARTONS::Constant::QUARK_TOP_MASS = 172.9

Top quark mass \(m_{t}\) in \(\mathrm{GeV}\) [20].

◆ QUARK_UP_MASS

const double PARTONS::Constant::QUARK_UP_MASS = 0.0024

Up quark mass \(m_{u}\) in \(\mathrm{GeV}\) [20].

◆ S2_ELEC_CHARGE

const double PARTONS::Constant::S2_ELEC_CHARGE = 1. / 9.

Square of electric charge of strange quark in units of \(e\).

◆ S_ELEC_CHARGE

const double PARTONS::Constant::S_ELEC_CHARGE = -1. / 3.

Electric charge of strange quark in units of \(e\).

◆ SPEED_OF_LIGHT

const double PARTONS::Constant::SPEED_OF_LIGHT = 299792458

Speed of light \(c\) in \(\mathrm{m}/\mathrm{s}\) [1].

◆ T2_ELEC_CHARGE

const double PARTONS::Constant::T2_ELEC_CHARGE = 4. / 9.

Square of electric charge of top quark in units of \(e\).

◆ T_ELEC_CHARGE

const double PARTONS::Constant::T_ELEC_CHARGE = 2. / 3.

Electric charge of top quark in units of \(e\).

◆ TAU_MASS

const double PARTONS::Constant::TAU_MASS = 1.77684

Tau mass \(m_{\tau}\) in \(\mathrm{GeV}\) [1].

◆ U2_ELEC_CHARGE

const double PARTONS::Constant::U2_ELEC_CHARGE = 4. / 9.

Square of electric charge of up quark in units of \(e\).

◆ U_ELEC_CHARGE

const double PARTONS::Constant::U_ELEC_CHARGE = 2. / 3.

Electric charge of up quark in units of \(e\).

◆ Z_BOSON_MASS

const double PARTONS::Constant::Z_BOSON_MASS = 91.1876

Boson \(Z\) mass \(m_{Z}\) in \(\mathrm{GeV}\) [20].

◆ ZETA_3

const double PARTONS::Constant::ZETA_3 = 1.2020569031595942

Apéry's constant (value of Riemann zeta function \(\zeta(3)\)).