Dalitz

Description

Dalitz plot for the Z decay to mu mu gamma.

We define two axes:

• m2Ratio, defined as \( m^2_{\mu\mu} / m^2_{\mu\mu\gamma} \), is the fraction of the energy that remains in the muon systems (squared). It is between 0 and 1 by construction. The limit m2Ratio -> 1 corresponds to soft photons.
• mMuGamma2, defined as \( \min m^2_{\mu\gamma} / (m^2_{\mu\mu\gamma} - m^2_{\mu\mu}) \), spanning 0 to 0.5. The collinear limit is mMuGamma2 -> 0.

#include <ZmmYDalitz.h>

Inheritance diagram for Dalitz:

Collaboration diagram for Dalitz:

Public Member Functions
	Dalitz ()
std::unique_ptr< Filler >	getFiller (Darwin::Tools::Flow &) const override
Public Member Functions inherited from Observable
virtual std::unique_ptr< Transformer >	getTransformer (TUnfoldBinning *) const
virtual void	setLmatrix (const std::unique_ptr< TH1 > &, std::unique_ptr< TH2 > &)
virtual	~Observable ()=default

Additional Inherited Members
Public Attributes inherited from Observable
TUnfoldBinning *	recBinning
TUnfoldBinning *	genBinning
Static Public Attributes inherited from Observable
static bool	isMC = false
static double	maxDR = 0.2
Protected Member Functions inherited from Observable
	Observable (const char *, const char *)

Constructor & Destructor Documentation

Dalitz()

Dalitz

(

)

Constructor.

                :
    Observable(__FUNCTION__, "Dalitz plot for Z to mu mu gamma")
{
    recBinning->AddAxis("m2Ratio", 2 * nM2RatioBins, 0, 1, false, false);
    recBinning->AddAxis("mMuGamma2", 2 * nMMuGamma2Bins, 0, 0.5, false, false);
    genBinning->AddAxis("m2Ratio", nM2RatioBins, 0, 1, false, false);
    genBinning->AddAxis("mMuGamma2", nMMuGamma2Bins, 0, 0.5, false, false);
}

Member Function Documentation

getFiller()

unique_ptr< DAS::Unfolding::Filler > getFiller ( Darwin::Tools::Flow &  flow ) const

overridevirtual

Constructs a filler for the observable.

Reimplemented from Observable.

{
    return make_unique<DalitzFiller>(*this, flow);
}

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

• /builds/cms-analysis/general/DasAnalysisSystem/Core/Installer/Core/Unfolding/interface/ZmmYDalitz.h
• /builds/cms-analysis/general/DasAnalysisSystem/Core/Installer/Core/Unfolding/src/ZmmYDalitz.cc