BSMPT::Baryo::transport_equations Class Reference

#include <BSMPT/baryo_calculation/transport_equations.h>

Public Member Functions
	transport_equations (const struct GSL_integration_mubl &params)
	transport_equations
transport_equations &	operator() (const state_type &x, state_type &dxdt, const double)
std::vector< double >	get_top_mass_and_derivative (const std::vector< double > &vev) const
double	get_W_mass (const std::vector< double > &vev, const double &T) const
std::vector< double >	calculate_vev (const double &z) const
std::vector< double >	calculate_vev_derivative (const double &z) const
double	calculate_theta (const double &z, const int &diff) const

Protected Attributes
bool	UseTanBetaSuppression = false
	UseTanBetaSuppression Use the thermal tanbeta suppression in the calculation of the theta(z)
bool	UseVelocityTransportEquations = false
double	vw
double	LW
double	TC
double	symmetric_CP_violating_phase = -500000
double	broken_CP_violating_phase = -500000
std::shared_ptr< Class_Potential_Origin >	modelPointer
std::vector< double >	vev_critical

Detailed Description

This class handles the evaluation of the transport equations as shown in arXiv:hep-ph/0605242v2 Eq (44) and (45) with the thermal velocity. The transport equations with second order ODEs in the chemical potentials is given in TODO:: paper/thesis

Constructor & Destructor Documentation

transport_equations()

BSMPT::Baryo::transport_equations::transport_equations

(

const struct GSL_integration_mubl &

params

)

transport_equations

Parameters

params

A GSL_integration_mubl struct with the information used

Member Function Documentation

calculate_theta()

double BSMPT::Baryo::transport_equations::calculate_theta	(	const double &	z,
		const int &	diff
	)		const

Calculates the CP violating angle theta according to 0605242 and its derivatives

Parameters

z	Distance to the wall. z < 0 is inside the broken phase and z > 0 is in the symmetric phase.
diff	Switch if the actual value should be returned (0), the first derivative (1) or the second (2)

calculate_vev()

std::vector< double > BSMPT::Baryo::transport_equations::calculate_vev

(

const double &

z

)

const

Calculates the VEV at a given distance z from the wall

Parameters

z	Distance to the wall. z < 0 is inside the broken phase and z > 0 is in the symmetric phase.

Returns

vector in which the VEV configuration will be stored

calculate_vev_derivative()

std::vector< double > BSMPT::Baryo::transport_equations::calculate_vev_derivative

(

const double &

z

)

const

Calculates the derivatives of the VEV at a given distance z from the wall

Parameters

z	Distance to the wall. z < 0 is inside the broken phase and z > 0 is in the symmetric phase.

Returns

vector in which the VEV configuration will be stored

get_top_mass_and_derivative()

std::vector< double > BSMPT::Baryo::transport_equations::get_top_mass_and_derivative

(

const std::vector< double > &

vev

)

const

Calculates the top mass and its derivative w.r.t the single components of the VEVs.

Parameters

vev	The VEV configuration at which the mass and the derivatives should be calculated.

Returns

vector which will store the result. Will be cleared in the process of the function call. This will have 9 entries, the first is the mass and then the 8 derivatives.

get_W_mass()

double BSMPT::Baryo::transport_equations::get_W_mass	(	const std::vector< double > &	vev,
		const double &	T
	)		const

Calculates the W mass at a given VEV and temerpature. As we assume no charge breaking vev in the c2hdm we look for the degenerate eigenvalue in the gauge boson mass matrix.

Parameters

vev	The VEV configuration at which to compute the W mass
T	The temperature at which to compute the W mass

operator()()

transport_equations & BSMPT::Baryo::transport_equations::operator()	(	const state_type &	x,
		state_type &	dxdt,
		const double	z
	)

Overloads the () operator to calculate the ODE for the transport equation

Parameters

x	Depending on transport_equations::UseVelocityTransportEquations the value of the chemical potentials and either their derivatives or the thermal velocities at the point z.
dxdt	Here the derivative of x at the point z will be stored
z	The distance to the wall (z = + infinity is the symmetric minimum, z = - infinity is the broken minimum and z=0 is the wall)

K4t) / 0.3e1;

Member Data Documentation

broken_CP_violating_phase

double BSMPT::Baryo::transport_equations::broken_CP_violating_phase = -500000

protected

CP violating phase in the broken vacuum

LW

double BSMPT::Baryo::transport_equations::LW

protected

Internal storage for the wall thickness

modelPointer

std::shared_ptr<Class_Potential_Origin> BSMPT::Baryo::transport_equations::modelPointer

protected

Pointer to the specific model under investigation. At this moment the transport equations are only implemented and tested for the C2HDM.

symmetric_CP_violating_phase

double BSMPT::Baryo::transport_equations::symmetric_CP_violating_phase = -500000

protected

Internal storage for the CP violating phase of the symmetric minimum

TC

double BSMPT::Baryo::transport_equations::TC

protected

Internal storage for the critical temperature

UseVelocityTransportEquations

bool BSMPT::Baryo::transport_equations::UseVelocityTransportEquations = false

protected

If true the transport equations with the plasma velocitys are used, otherwise the second order transport equations in the chemical potentials are used.

vev_critical

std::vector<double> BSMPT::Baryo::transport_equations::vev_critical

protected

Internal storage for the value of the VEVs at the broken minimum at the critical temperature.

vw

double BSMPT::Baryo::transport_equations::vw

protected

Internal storage for the wall velocity

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The documentation for this class was generated from the following files:

• include/BSMPT/baryo_calculation/transport_equations.h
• src/baryo_calculation/transport_equations.cpp