rarGounarisSakurai Class Reference

GounarisSakurai rho line shape PDF builder. More...

#include <rarGounarisSakurai.hh>

Inheritance diagram for rarGounarisSakurai:

List of all members.

Public Member Functions
	rarGounarisSakurai ()
	Trivial ctor.
	rarGounarisSakurai (const char *configFile, const char *configSec, const char *configStr, rarDatasets *theDatasets, RooDataSet *theData, const char *name, const char *title)
	Default ctor.
virtual	~rarGounarisSakurai ()
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 *	_spin
	Spin (0,1, or 2).
RooAbsReal *	_radius
	Form factor radius.
RooAbsReal *	_mass_a
	Mass of daughter A.
RooAbsReal *	_mass_b
	Mass of daughter B.
Private Member Functions
	rarGounarisSakurai (const rarGounarisSakurai &)
	ClassDef (rarGounarisSakurai, 0)

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Detailed Description

GounarisSakurai rho line shape PDF builder.

Build RooGounarisSakurai Pdf.

Config Directives:

/// configStr = GounarisSakurai ["<Optional Title>"]
/// spin = <0|1|2>
/// x = AbsReal Def
/// mean  = AbsReal Def
/// width = AbsReal Def
/// spin  = AbsReal Def
/// radius = AbsReal Def
/// mass_a = AbsReal Def
/// mass_b = 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) (default 1). radius is the form factor radius (default 3.1/GeV) mass_a is the mass of the first daughter (default pi+ mass) mass_b is the mass of the second daughter (default pi- mass) After being defined, the two daughter masses and the spin are held constant in the fit. All the variables can be RooRealVar or RooFormulaVar.

Definition at line 45 of file rarGounarisSakurai.hh.

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Constructor & Destructor Documentation

rarGounarisSakurai::rarGounarisSakurai

(

)

Trivial ctor.

Usually the objects should be created using other ctors.

Definition at line 36 of file rarGounarisSakurai.cc.

References init().

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

rarGounarisSakurai::rarGounarisSakurai	(	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 56 of file rarGounarisSakurai.cc.

References init().

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

rarGounarisSakurai::~rarGounarisSakurai

(

)

[virtual]

Definition at line 70 of file rarGounarisSakurai.cc.

{
}

rarGounarisSakurai::rarGounarisSakurai

(

const rarGounarisSakurai &

)

[private]

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Member Function Documentation

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

void rarGounarisSakurai::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 RooGounarisSakurai PDF.

Reimplemented from rarBasePdf.

Definition at line 79 of file rarGounarisSakurai.cc.

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

Referenced by rarGounarisSakurai().

{
  
  // 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, 10);
  _spin   = createAbsReal("spin", "spin", 1, 0, 3);
  _radius = createAbsReal("radius", "radius", 3.1, 0, 10); // GeV-1
  _mass_a = createAbsReal("mass_a", "mass_a", 0.1359, 0, 10); // pi mass
  _mass_b = createAbsReal("mass_b", "mass_b", 0.1359, 0, 10);

  // set spin and masses to fixed ?
  _spin->setAttribute("Constant", kTRUE);
  _mass_a->setAttribute("Constant", kTRUE);
  _mass_b->setAttribute("Constant", kTRUE);

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

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Member Data Documentation

RooAbsReal* rarGounarisSakurai::_mass_a [protected]

Mass of daughter A.

Definition at line 63 of file rarGounarisSakurai.hh.

Referenced by init().

RooAbsReal* rarGounarisSakurai::_mass_b [protected]

Mass of daughter B.

Definition at line 64 of file rarGounarisSakurai.hh.

Referenced by init().

RooAbsReal* rarGounarisSakurai::_mean [protected]

Peak position of the PDF.

Definition at line 59 of file rarGounarisSakurai.hh.

Referenced by init().

RooAbsReal* rarGounarisSakurai::_radius [protected]

Form factor radius.

Definition at line 62 of file rarGounarisSakurai.hh.

Referenced by init().

RooAbsReal* rarGounarisSakurai::_spin [protected]

Spin (0,1, or 2).

Definition at line 61 of file rarGounarisSakurai.hh.

Referenced by init().

RooAbsReal* rarGounarisSakurai::_width [protected]

Width of the PDF.

Definition at line 60 of file rarGounarisSakurai.hh.

Referenced by init().

RooAbsReal* rarGounarisSakurai::_x [protected]

Default obs (mass).

Definition at line 58 of file rarGounarisSakurai.hh.

Referenced by init().

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

• rarGounarisSakurai.hh
• rarGounarisSakurai.cc

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