rarRelBreitWigner Class Reference

Relativistic Breit Wigner PDF builder. More...

#include <rarRelBreitWigner.hh>

Inheritance diagram for rarRelBreitWigner:

List of all members.

Public Member Functions
	rarRelBreitWigner ()
	Trivial ctor.
	rarRelBreitWigner (const char *configFile, const char *configSec, const char *configStr, rarDatasets *theDatasets, RooDataSet *theData, const char *name, const char *title)
	Default ctor.
virtual	~rarRelBreitWigner ()
Protected Member Functions
void	init ()
	Initial function called by ctor.
Protected Attributes
RooAbsReal *	_x
	Default obs (mass).
RooAbsReal *	_mean
	Peak position of the PDF.
RooAbsReal *	_width
	Width of the PDF.
RooAbsReal *	_radius
	Width of the PDF.
RooAbsReal *	_mass_a
RooAbsReal *	_mass_b
RooAbsReal *	_spin
Private Member Functions
	rarRelBreitWigner (const rarRelBreitWigner &)
	ClassDef (rarRelBreitWigner, 0)

---

Detailed Description

Relativistic Breit Wigner PDF builder.

Build RooRelBreitWigner Pdf.

Config Directives:

/// configStr = RelBreitWigner ["<Optional Title>"]
/// spin = <0|1|2>
/// x = AbsReal Def
/// mean  = AbsReal Def
/// width = AbsReal Def
/// spin  = AbsReal Def
/// 

x is the default observable. mean is the peak position of the pdf. width is the width of the pdf. spin is the spin (= 0, 1, 2). All the variables can be RooRealVar or RooFormulaVar.

Definition at line 37 of file rarRelBreitWigner.hh.

---

Constructor & Destructor Documentation

rarRelBreitWigner::rarRelBreitWigner

(

)

Trivial ctor.

Usually the objects should be created using other ctors.

Definition at line 38 of file rarRelBreitWigner.cc.

References init().

  : rarBasePdf(),
    _x(0), _mean(0), _width(0), _radius(0), _mass_a(0), _mass_b(0), _spin(0)
{
  init();
}

rarRelBreitWigner::rarRelBreitWigner	(	const char *	configFile,
		const char *	configSec,
		const char *	configStr,
		rarDatasets *	theDatasets,
		RooDataSet *	theData,
		const char *	name,
		const char *	title
	)

Default ctor.

Parameters:

	configFile	The config file
	configSec	The config section
	configStr	The config string
	theDatasets	Available datasets
	theData	Default dataset for this PDF
	name	The name
	title	The title

The default ctor first initializes data members, and then calls init.

Definition at line 57 of file rarRelBreitWigner.cc.

References init().

  : rarBasePdf(configFile, configSec, configStr,
               theDatasets, theData, name, title),
    _x(0), _mean(0), _width(0),  _radius(0), _mass_a(0), _mass_b(0), _spin(0)
{
  init();
}

rarRelBreitWigner::~rarRelBreitWigner

(

)

[virtual]

Definition at line 70 of file rarRelBreitWigner.cc.

{
}

rarRelBreitWigner::rarRelBreitWigner

(

const rarRelBreitWigner &

)

[private]

---

Member Function Documentation

rarRelBreitWigner::ClassDef	(	rarRelBreitWigner	,
		0
	)			[private]

void rarRelBreitWigner::init

(

)

[protected, virtual]

Initial function called by ctor.

init is called by the ctor. It first creates the parameters by calling createAbsReal, and finally it builds the RooRelBreitWigner PDF.

Reimplemented from rarBasePdf.

Definition at line 79 of file rarRelBreitWigner.cc.

References _mass_a, _mass_b, _mean, rarBasePdf::_params, rarBasePdf::_pdfType, _radius, _spin, rarBasePdf::_thePdf, _width, _x, and rarConfig::createAbsReal().

Referenced by rarRelBreitWigner().

{
  // read in _parSpin from config section
  //_parSpin=atoi(readConfStr("spin", Form("%d", _parSpin), getVarSec()));

  cout <<"init of rarRelBreitWigner for "<<GetName()<<endl;
  
  // first get its obs
  _x=createAbsReal("x", "observable"); assert(_x);

  // Config pdf params
  _mean=createAbsReal("mean", "mean", 0, -10, 10);
  _width=createAbsReal("width", "width", 0, 0, 100);
  _radius=createAbsReal("radius", "radius", 3.1, "RooConstVar");
  _mass_a=createAbsReal("mass_a", "mass_a", 0.493677, "RooConstVar");
  _mass_b=createAbsReal("mass_b", "mass_b", 0.139570, "RooConstVar");
  _spin=createAbsReal("spin", "spin", 1, "RooConstVar");

  _params.Print("v");
  
  // create pdf
  _thePdf=new RooRelBreitWigner(Form("the_%s", GetName()),_pdfType+" "+GetTitle(),
                                *_x, *_mean, *_width, *_radius, *_mass_a, *_mass_b, *_spin);
}

---

Member Data Documentation

RooAbsReal* rarRelBreitWigner::_mass_a [protected]

Definition at line 54 of file rarRelBreitWigner.hh.

Referenced by init().

RooAbsReal* rarRelBreitWigner::_mass_b [protected]

Definition at line 55 of file rarRelBreitWigner.hh.

Referenced by init().

RooAbsReal* rarRelBreitWigner::_mean [protected]

Peak position of the PDF.

Definition at line 51 of file rarRelBreitWigner.hh.

Referenced by init().

RooAbsReal* rarRelBreitWigner::_radius [protected]

Width of the PDF.

Definition at line 53 of file rarRelBreitWigner.hh.

Referenced by init().

RooAbsReal* rarRelBreitWigner::_spin [protected]

Definition at line 56 of file rarRelBreitWigner.hh.

Referenced by init().

RooAbsReal* rarRelBreitWigner::_width [protected]

Width of the PDF.

Definition at line 52 of file rarRelBreitWigner.hh.

Referenced by init().

RooAbsReal* rarRelBreitWigner::_x [protected]

Default obs (mass).

Definition at line 50 of file rarRelBreitWigner.hh.

Referenced by init().

---

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

• rarRelBreitWigner.hh
• rarRelBreitWigner.cc

---