Elegent::PPPModel Class Reference

Predazzi, Petrov and Prokudin model of p-p and p-anti p elastic scattering. More...

#include <PPPModel.h>

Inheritance diagram for Elegent::PPPModel:

Classes
struct	Trajectory

Public Types
enum	VariantType { v2P, v3P }
	available variants More...

Public Member Functions
void	Configure (VariantType v)
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
	b in fm
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...

Public Attributes
enum Elegent::PPPModel::VariantType	variant
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)

Protected Member Functions
virtual TComplex	prf0 (double b) const
	b in GeV^-1 More...

Static Protected Member Functions
static void	SetTrajectory (Trajectory &t, double D, double c, double ap, double r2, double s0)
static TComplex	Delta (const Trajectory &, double t)
static TComplex	prf_J0 (double b, double *par, const void *obj)

Protected Attributes
Trajectory	pom1
Trajectory	pom2
Trajectory	pom3
Trajectory	oder
Trajectory	regf
Trajectory	rego
double	s0
double	precision
double	upper_bound
bool	integ_workspace_initialized
unsigned long	integ_workspace_size
gsl_integration_workspace *	integ_workspace

Detailed Description

Predazzi, Petrov and Prokudin model of p-p and p-anti p elastic scattering.

References: [1] PETROV, V. A. and PROKUDIN, A. V., Eur. Phys. J. C23 (2002) 135–143

Member Enumeration Documentation

enum Elegent::PPPModel::VariantType

available variants

Enumerator
v2P	with 2 Pomerons
v3P	with 3 Pomerons

Member Function Documentation

TComplex PPPModel::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

t	in GeV^-2, t < 0

Implements Elegent::Model.

TComplex PPPModel::Delta ( const Trajectory &  traj, double  t  )

staticprotected

delta+-(s, b) according Eq. (11) without the leading i and Eq. (12)

TComplex PPPModel::prf0 ( double  b ) const

protectedvirtual

b in GeV^-1

delta as from Eq. (9) from [1]

scattering amplitude according to Eq. (1) in [1]

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

• src/libElegent/interface/PPPModel.h
• src/libElegent/src/PPPModel.cc