Advanced kinematical variables. More...

Functions
double	AnalysisBase::mT (const TLorentzVector &vis, const TLorentzVector &invis)
	Evaluates the transverse mass . More...

double	AnalysisBase::mT2 (const TLorentzVector &vis1, const TLorentzVector &vis2, double m_inv, const TLorentzVector &invis=TLorentzVector(0., 0., 0., 0.))
	Evaluates $m_{T2}$ . More...

double	AnalysisBase::mCT (const TLorentzVector &v1, const TLorentzVector &v2)
	Evaluates normal $M_{CT}$ . More...

double	AnalysisBase::mCTcorr (const TLorentzVector &v1, const TLorentzVector &v2, const TLorentzVector &vds, const TLorentzVector &invis, const double ecm=8000.0, const double mxlo=0.0)
	Evaluates boost corrected $M_{CT}$ . More...

double	AnalysisBase::mCTy (const TLorentzVector &v1, const TLorentzVector &v2, const TLorentzVector &vds, const TLorentzVector &invis)
	Evaluates $M_{CT}$ transverse. More...

double	AnalysisBase::mT2_bl (const TLorentzVector &pl_in, const TLorentzVector &pb1_in, const TLorentzVector &pb2_in, const TLorentzVector &invis=TLorentzVector(0., 0., 0., 0.))
	Evaluates $m_{T2}^{bl}$ . More...

double	AnalysisBase::alphaT (const std::vector< Jet * > &jets, const double thresh_ET=0.)
	Evaluates $\alpha_T$ . More...

std::vector< double >	AnalysisBase::razor (const std::vector< TLorentzVector > &obj, const TLorentzVector &invis=TLorentzVector(0., 0., 0., 0.))
	Evaluates razor. More...

Detailed Description

Advanced kinematical variables.

These functions calculate advanced kinematical variables.

Function Documentation

double AnalysisBase::mT	(	const TLorentzVector &	vis,
		const TLorentzVector &	invis
	)

protected

Evaluates the transverse mass $m_T$ .

The transverse mass is defined as *

$\begin{align*} m_T := \sqrt{2 |p_T^{\text{vis}}| |p_T^{\text{invis}}| \cos(1-\Delta \phi)} \end{align*}$

* where $|p_T^{\text{vis}}|$ is the magnitude of the visible particle's momentum in the transverse plane and $|p_T^{\text{invis}}|$ is the magnitude of the total missing momentum of the event. $\Delta \phi$ denotes the relative angle between the two vectors in the transverse plane.

Assuming a particle of mass $M$ decays into a visible particle and an invisible particle which solely contributes to the missing momentum vector, then it can be shown that $m_T \leq M$

Definition at line 328 of file AnalysisBase.cc.

double AnalysisBase::mT2	(	const TLorentzVector &	vis1,
		const TLorentzVector &	vis2,
		double	m_inv,
		const TLorentzVector &	invis = `TLorentzVector(0., 0., 0., 0.)`
	)

protected

Evaluates $m_{T2}$ .

The definition is

For more information, see http://arxiv.org/abs/0810.5178.

Definition at line 333 of file AnalysisBase.cc.

double AnalysisBase::mCT	(	const TLorentzVector &	v1,
		const TLorentzVector &	v2
	)

protected

Evaluates normal $M_{CT}$ .

The definition is

For more information, see JHEP 0804:034,2008, http://arxiv.org/abs/0802.2879.

Definition at line 353 of file AnalysisBase.cc.

double AnalysisBase::mCTcorr	(	const TLorentzVector &	v1,
		const TLorentzVector &	v2,
		const TLorentzVector &	vds,
		const TLorentzVector &	invis,
		const double	ecm = `8000.0`,
		const double	mxlo = `0.0`
	)

protected

Evaluates boost corrected $M_{CT}$ .

The definition is

For more information, see JHEP 0804:034,2008, http://arxiv.org/abs/0802.2879

Definition at line 361 of file AnalysisBase.cc.

double AnalysisBase::mCTy	(	const TLorentzVector &	v1,
		const TLorentzVector &	v2,
		const TLorentzVector &	vds,
		const TLorentzVector &	invis
	)

protected

Evaluates $M_{CT}$ transverse.

The definition is

For more information, see http://arxiv.org/abs/0910.1584.

Definition at line 371 of file AnalysisBase.cc.

double AnalysisBase::mT2_bl	(	const TLorentzVector &	pl_in,
		const TLorentzVector &	pb1_in,
		const TLorentzVector &	pb2_in,
		const TLorentzVector &	invis = `TLorentzVector(0., 0., 0., 0.)`
	)

protected

Evaluates $m_{T2}^{bl}$ .

The definition is

It is also known as asymmetric mT2 (e.g. in atlas_conf_2013_037). For more information, see http://arxiv.org/abs/1203.4813

Definition at line 381 of file AnalysisBase.cc.

double AnalysisBase::alphaT	(	const std::vector< Jet * > &	jets,
		const double	thresh_ET = `0.`
	)

protected

Evaluates $\alpha_T$ .

The definition is

(code supplied by CMS)

Definition at line 404 of file AnalysisBase.cc.

std::vector< double > AnalysisBase::razor	(	const std::vector< TLorentzVector > &	obj,
		const TLorentzVector &	invis = `TLorentzVector(0., 0., 0., 0.)`
	)

protected

Evaluates razor.

The definition is

(code supplied by CMS)

Definition at line 434 of file AnalysisBase.cc.

Functions

Detailed Description

Function Documentation