Block-Halzen model of p-p and p-anti p elastic scattering. More...

#include <BHModel.h>

Inheritance diagram for Elegent::BHModel:

Public Member Functions
void	Configure ()

virtual void	Init ()
	sets up model parameters and data members

virtual void	Print () const
	prints model info

virtual TComplex	Amp (double t) const
	Amplitude in t-space. More...

virtual TComplex	Prf (double b) const
	Profile function (amplitude in b-space). More...

Public Member Functions inherited from Elegent::Model
std::string	CompileFullLabel () const
	compiles a human readable string from fullLabel

std::string	CompileShortLabel () const
	compiles a human readable string from shortLabel

virtual void	ForcePresampling (bool)
	Sets the presampling option, if available. More...

Protected Member Functions
double	W (double b, double mi) const
	profile defined by Eq. (B2) in [1]

TComplex	Sum (double s) const
	sum in Eq. (B5) in [1]

TComplex	chi_without_i (double b) const
	the full eikonal: Eq. (1) without the leading factor i and Eq. (12)

TComplex	prf0 (double b) const

Static Protected Member Functions
static TComplex	prf0_J0 (double b, double par, const void vobj)

Protected Attributes
double	m0
	common parameters

double	s0

double	al_s

double	Sigma_gg

double	Cp_gg
	parameters for sigma_gg

double	epsilon

double	Ng

std::vector< double >	a

std::vector< double >	b

double	C_qg_log
	parameters for sigma_gg

double	C
	parameters for sigma_qg

double	C_even_regge

double	C_odd
	parameters for sigma_qq

double	mu_gg
	effective areas

double	mu_qg

double	mu_qq

double	mu_odd

TComplex	sigma_gg
	the integral cross-sections

TComplex	sigma_qq

TComplex	sigma_qg

TComplex	sigma_odd

double	precision
	integration parameters

double	upper_bound

bool	integ_workspace_initialized

unsigned long	integ_workspace_size

gsl_integration_workspace *	integ_workspace

Additional Inherited Members
Public Attributes inherited from Elegent::Model
Label	fullLabel
	full label (e.g. for figure legend)

Label	shortLabel
	short label (e.g. for object names in ROOT files)

Detailed Description

Block-Halzen model of p-p and p-anti p elastic scattering.

References: [1] BLOCK, M. M., GREGORES, E. M., HALZEN, F. and PANCHERI, G., Phys. Rev. D60 (1999) 054024 [2] BLOCK, M. M., Phys. Rept. 436 (2006) 71-215

Member Function Documentation

TComplex BHModel::Amp ( double t ) const

virtual

Amplitude in t-space.

Normalisation is such that \( dsigma/dt = (\hbar c)^2 * \pi / (s p^2) * |Amp(t)|^2 \) Differential cross-section can be obtained as Constants::sig_fac * |Amp(t)|^2

Parameters