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 $\zeta(3)$).