ROOT::Math::LorentzVector< CoordSystem > Class Template Reference
[GenVector]

Class describing a generic LorentzVector in the 4D space-time, using the specified coordinate system for the spatial vector part. More...

#include <LorentzVector.h>

Collaboration diagram for ROOT::Math::LorentzVector< CoordSystem >:

[legend]

List of all members.

Public Types

typedef CoordSystem::Scalar Scalar

typedef CoordSystem CoordinateType

typedef DisplacementVector3D
< Cartesian3D< Scalar > > BetaVector

Public Member Functions

LorentzVector ()

default constructor of an empty vector (Px = Py = Pz = E = 0 )

LorentzVector (const Scalar &a, const Scalar &b, const Scalar &c, const Scalar &d)

generic constructors from four scalar values.

template<class Coords >

LorentzVector (const LorentzVector< Coords > &v)

constructor from a LorentzVector expressed in different coordinates, or using a different Scalar type

template<class ForeignLorentzVector >

LorentzVector (const ForeignLorentzVector &v)

Construct from a foreign 4D vector type, for example, HepLorentzVector Precondition: v must implement methods x(), y(), z(), and t().

template<class OtherCoords >

LorentzVector & operator= (const LorentzVector< OtherCoords > &v)

Assignment operator from a lorentz vector of arbitrary type.

template<class ForeignLorentzVector >

LorentzVector & operator= (const ForeignLorentzVector &v)

assignment from any other Lorentz vector implementing x(), y(), z() and t()

const CoordSystem & Coordinates () const

Retrieve a const reference to the coordinates object.

LorentzVector< CoordSystem > & SetCoordinates (const Scalar src[])

Set internal data based on an array of 4 Scalar numbers.

LorentzVector< CoordSystem > & SetCoordinates (Scalar a, Scalar b, Scalar c, Scalar d)

Set internal data based on 4 Scalar numbers.

template<class IT >

LorentzVector< CoordSystem > & SetCoordinates (IT begin, IT end)

Set internal data based on 4 Scalars at *begin to *end.

void GetCoordinates (Scalar &a, Scalar &b, Scalar &c, Scalar &d) const

get internal data into 4 Scalar numbers

void GetCoordinates (Scalar dest[]) const

get internal data into an array of 4 Scalar numbers

template<class IT >

void GetCoordinates (IT begin, IT end) const

get internal data into 4 Scalars at *begin to *end

template<class IT >

void GetCoordinates (IT begin) const

get internal data into 4 Scalars at *begin

LorentzVector< CoordSystem > & SetXYZT (Scalar xx, Scalar yy, Scalar zz, Scalar tt)

set the values of the vector from the cartesian components (x,y,z,t) (if the vector is held in another coordinates, like (Pt,eta,phi,m) then (x, y, z, t) are converted to that form)

LorentzVector< CoordSystem > & SetPxPyPzE (Scalar xx, Scalar yy, Scalar zz, Scalar ee)

bool operator== (const LorentzVector &rhs) const

Exact equality.

bool operator!= (const LorentzVector &rhs) const

Scalar Px () const

spatial X component

Scalar X () const

Scalar Py () const

spatial Y component

Scalar Y () const

Scalar Pz () const

spatial Z component

Scalar Z () const

Scalar E () const

return 4-th component (time, or energy for a 4-momentum vector)

Scalar T () const

Scalar M2 () const

return magnitude (mass) squared M2 = T**2 - X**2 - Y**2 - Z**2 (we use -,-,-,+ metric)

Scalar M () const

return magnitude (mass) using the (-,-,-,+) metric.

Scalar R () const

return the spatial (3D) magnitude ( sqrt(X**2 + Y**2 + Z**2) )

Scalar P () const

Scalar P2 () const

return the square of the spatial (3D) magnitude ( X**2 + Y**2 + Z**2 )

Scalar Perp2 () const

return the square of the transverse spatial component ( X**2 + Y**2 )

Scalar Pt () const

return the transverse spatial component sqrt ( X**2 + Y**2 )

Scalar Rho () const

Scalar Mt2 () const

return the transverse mass squared
$m_t^2 = E^2 - p{_z}^2$

Scalar Mt () const

return the transverse mass
$\sqrt{ m_t^2 = E^2 - p{_z}^2} X sign(E^ - p{_z}^2)$

Scalar Et2 () const

return the transverse energy squared
$e_t = \frac{E^2 p_{\perp}^2 }{ |p|^2 }$

Scalar Et () const

return the transverse energy
$e_t = \sqrt{ \frac{E^2 p_{\perp}^2 }{ |p|^2 } } X sign(E)$

Scalar Phi () const

azimuthal Angle

Scalar Theta () const

polar Angle

Scalar Eta () const

pseudorapidity
$\eta = - \ln { \tan { \frac { \theta} {2} } }$

::ROOT::Math::DisplacementVector3D
< Cartesian3D< Scalar > > Vect () const

get the spatial components of the Vector in a DisplacementVector based on Cartesian Coordinates

template<class OtherLorentzVector >

Scalar Dot (const OtherLorentzVector &q) const

scalar (Dot) product of two LorentzVector vectors (metric is -,-,-,+) Enable the product using any other LorentzVector implementing the x(), y() , y() and t() member functions

template<class OtherLorentzVector >

LorentzVector & operator+= (const OtherLorentzVector &q)

Self addition with another Vector ( v+= q ) Enable the addition with any other LorentzVector.

template<class OtherLorentzVector >

LorentzVector & operator-= (const OtherLorentzVector &q)

Self subtraction of another Vector from this ( v-= q ) Enable the addition with any other LorentzVector.

template<class OtherLorentzVector >

LorentzVector operator+ (const OtherLorentzVector &v2) const

addition of two LorentzVectors (v3 = v1 + v2) Enable the addition with any other LorentzVector

template<class OtherLorentzVector >

LorentzVector operator- (const OtherLorentzVector &v2) const

subtraction of two LorentzVectors (v3 = v1 - v2) Enable the subtraction of any other LorentzVector

LorentzVector & operator*= (Scalar a)

multiplication by a scalar quantity v *= a

LorentzVector & operator/= (Scalar a)

division by a scalar quantity v /= a

LorentzVector operator* (const Scalar &a) const

product of a LorentzVector by a scalar quantity

LorentzVector< CoordSystem > operator/ (const Scalar &a) const

Divide a LorentzVector by a scalar quantity.

LorentzVector operator- () const

Negative of a LorentzVector (q = - v ).

LorentzVector operator+ () const

Scalar Rapidity () const

Rapidity relative to the Z axis: .5 log [(E+Pz)/(E-Pz)].

Scalar ColinearRapidity () const

Rapidity in the direction of travel: atanh (|P|/E)=.5 log[(E+P)/(E-P)].

bool isTimelike () const

Determine if momentum-energy can represent a physical massive particle.

bool isLightlike (Scalar tolerance=100 *std::numeric_limits< Scalar >::epsilon()) const

Determine if momentum-energy can represent a massless particle.

bool isSpacelike () const

Determine if momentum-energy is spacelike, and represents a tachyon.

BetaVector BoostToCM () const

The beta vector for the boost that would bring this vector into its center of mass frame (zero momentum).

template<class Other4Vector >

BetaVector BoostToCM (const Other4Vector &v) const

The beta vector for the boost that would bring this vector into its center of mass frame (zero momentum).

Scalar Beta () const

Return beta scalar value.

Scalar Gamma () const

Return Gamma scalar value.

Scalar x () const

Scalar y () const

Scalar z () const

Scalar t () const

Scalar px () const

Scalar py () const

Scalar pz () const

Scalar e () const

Scalar r () const

Scalar theta () const

Scalar phi () const

Scalar rho () const

Scalar eta () const

Scalar pt () const

Scalar perp2 () const

Scalar mag2 () const

Scalar mag () const

Scalar mt () const

Scalar mt2 () const

Scalar energy () const

Scalar mass () const

Scalar mass2 () const

LorentzVector< CoordSystem > & SetE (Scalar a)

Methods setting a Single-component Work only if the component is one of which the vector is represented.

LorentzVector< CoordSystem > & SetEta (Scalar a)

LorentzVector< CoordSystem > & SetM (Scalar a)

LorentzVector< CoordSystem > & SetPhi (Scalar a)

LorentzVector< CoordSystem > & SetPt (Scalar a)

LorentzVector< CoordSystem > & SetPx (Scalar a)

LorentzVector< CoordSystem > & SetPy (Scalar a)

LorentzVector< CoordSystem > & SetPz (Scalar a)

Detailed Description

template<class CoordSystem>
class ROOT::Math::LorentzVector< CoordSystem >

Class describing a generic LorentzVector in the 4D space-time, using the specified coordinate system for the spatial vector part.

The metric used for the LorentzVector is (-,-,-,+). In the case of LorentzVector we don't distinguish the concepts of points and displacement vectors as in the 3D case, since the main use case for 4D Vectors is to describe the kinematics of relativistic particles. A LorentzVector behaves like a DisplacementVector in 4D. The Minkowski components could be viewed as v and t, or for kinematic 4-vectors, as p and E.

Definition at line 54 of file GenVector/LorentzVector.h.

Member Typedef Documentation

template<class CoordSystem>

typedef DisplacementVector3D< Cartesian3D<Scalar> > ROOT::Math::LorentzVector< CoordSystem >::BetaVector

Definition at line 524 of file GenVector/LorentzVector.h.

template<class CoordSystem>

typedef CoordSystem ROOT::Math::LorentzVector< CoordSystem >::CoordinateType

Definition at line 61 of file GenVector/LorentzVector.h.

template<class CoordSystem>

typedef CoordSystem::Scalar ROOT::Math::LorentzVector< CoordSystem >::Scalar

Definition at line 60 of file GenVector/LorentzVector.h.

Constructor & Destructor Documentation

template<class CoordSystem>

ROOT::Math::LorentzVector< CoordSystem >::LorentzVector ( ) [inline]

default constructor of an empty vector (Px = Py = Pz = E = 0 )

Definition at line 66 of file GenVector/LorentzVector.h.

template<class CoordSystem>

ROOT::Math::LorentzVector< CoordSystem >::LorentzVector	(	const Scalar &	a,
		const Scalar &	b,
		const Scalar &	c,
		const Scalar &	d
	)			`[inline]`

generic constructors from four scalar values.

The association between values and coordinate depends on the coordinate system. For PxPyPzE4D,

Parameters:

	a	scalar value (Px)
	b	scalar value (Py)
	c	scalar value (Pz)
	d	scalar value (E)

Definition at line 77 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class Coords >

ROOT::Math::LorentzVector< CoordSystem >::LorentzVector ( const LorentzVector< Coords > & v ) [inline, explicit]

constructor from a LorentzVector expressed in different coordinates, or using a different Scalar type

Definition at line 88 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class ForeignLorentzVector >

ROOT::Math::LorentzVector< CoordSystem >::LorentzVector ( const ForeignLorentzVector< CoordSystem > & v ) [inline, explicit]

Construct from a foreign 4D vector type, for example, HepLorentzVector Precondition: v must implement methods x(), y(), z(), and t().

Definition at line 96 of file GenVector/LorentzVector.h.

Member Function Documentation

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Beta ( ) const [inline]

Return beta scalar value.

Definition at line 574 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), ROOT::Math::LorentzVector< CoordSystem >::M2(), ROOT::Math::LorentzVector< CoordSystem >::P(), ROOT::Math::LorentzVector< CoordSystem >::P2(), and ROOT::Math::Throw().

template<class CoordSystem>

template<class Other4Vector >

BetaVector ROOT::Math::LorentzVector< CoordSystem >::BoostToCM ( const Other4Vector & v ) const [inline]

The beta vector for the boost that would bring this vector into its center of mass frame (zero momentum).

Definition at line 552 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), ROOT::Math::DisplacementVector3D< CoordSystem, Tag >::Mag2(), and ROOT::Math::LorentzVector< CoordSystem >::Vect().

template<class CoordSystem>

BetaVector ROOT::Math::LorentzVector< CoordSystem >::BoostToCM ( ) const [inline]

The beta vector for the boost that would bring this vector into its center of mass frame (zero momentum).

Definition at line 530 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), ROOT::Math::LorentzVector< CoordSystem >::M2(), ROOT::Math::LorentzVector< CoordSystem >::P(), and ROOT::Math::LorentzVector< CoordSystem >::Vect().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::ColinearRapidity ( ) const [inline]

Rapidity in the direction of travel: atanh (|P|/E)=.5 log[(E+P)/(E-P)].

Definition at line 492 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), log(), and ROOT::Math::LorentzVector< CoordSystem >::P().

template<class CoordSystem>

const CoordSystem& ROOT::Math::LorentzVector< CoordSystem >::Coordinates ( ) const [inline]

Retrieve a const reference to the coordinates object.

Definition at line 157 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::operator=().

template<class CoordSystem>

template<class OtherLorentzVector >

Scalar ROOT::Math::LorentzVector< CoordSystem >::Dot ( const OtherLorentzVector< CoordSystem > & q ) const [inline]

scalar (Dot) product of two LorentzVector vectors (metric is -,-,-,+) Enable the product using any other LorentzVector implementing the x(), y() , y() and t() member functions

Parameters:

q

any LorentzVector implementing the x(), y() , z() and t() member functions

Returns:: the result of v.q of type according to the base scalar type of v

Definition at line 364 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::t(), ROOT::Math::LorentzVector< CoordSystem >::x(), ROOT::Math::LorentzVector< CoordSystem >::y(), and ROOT::Math::LorentzVector< CoordSystem >::z().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::e ( ) const [inline]

Definition at line 623 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::E ( ) const [inline]

return 4-th component (time, or energy for a 4-momentum vector)

Definition at line 271 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::energy ( ) const [inline]

Definition at line 638 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Et ( ) const [inline]

return the transverse energy

$e_t = \sqrt{ \frac{E^2 p_{\perp}^2 }{ |p|^2 } } X sign(E)$

Definition at line 326 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Et2 ( ) const [inline]

return the transverse energy squared

$e_t = \frac{E^2 p_{\perp}^2 }{ |p|^2 }$

Definition at line 320 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::eta ( ) const [inline]

Definition at line 628 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Eta ( ) const [inline]

pseudorapidity

$\eta = - \ln { \tan { \frac { \theta} {2} } }$

Definition at line 342 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Gamma ( ) const [inline]

Return Gamma scalar value.

Definition at line 592 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), ROOT::Math::LorentzVector< CoordSystem >::P2(), ROOT::Math::sqrt(), and ROOT::Math::Throw().

template<class CoordSystem>

template<class IT >

void ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates ( IT begin ) const [inline]

get internal data into 4 Scalars at *begin

Definition at line 214 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates().

template<class CoordSystem>

template<class IT >

void ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates	(	IT	begin,
		IT	end
	)			const `[inline]`

get internal data into 4 Scalars at *begin to *end

Definition at line 204 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates().

template<class CoordSystem>

void ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates ( Scalar dest[] ) const [inline]

get internal data into an array of 4 Scalar numbers

Definition at line 197 of file GenVector/LorentzVector.h.

template<class CoordSystem>

void ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates	(	Scalar &	a,
		Scalar &	b,
		Scalar &	c,
		Scalar &	d
	)			const `[inline]`

get internal data into 4 Scalar numbers

Definition at line 191 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::GetCoordinates().

template<class CoordSystem>

bool ROOT::Math::LorentzVector< CoordSystem >::isLightlike ( Scalar tolerance = 100*std::numeric_limits<Scalar>::epsilon() ) const [inline]

Determine if momentum-energy can represent a massless particle.

Definition at line 510 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), and ROOT::Math::LorentzVector< CoordSystem >::P().

template<class CoordSystem>

bool ROOT::Math::LorentzVector< CoordSystem >::isSpacelike ( ) const [inline]

Determine if momentum-energy is spacelike, and represents a tachyon.

Definition at line 520 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), and ROOT::Math::LorentzVector< CoordSystem >::P().

template<class CoordSystem>

bool ROOT::Math::LorentzVector< CoordSystem >::isTimelike ( ) const [inline]

Determine if momentum-energy can represent a physical massive particle.

Definition at line 503 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), and ROOT::Math::LorentzVector< CoordSystem >::P().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::M ( ) const [inline]

return magnitude (mass) using the (-,-,-,+) metric.

If M2 is negative (space-like vector) a GenVector_exception is suggested and if continuing, - sqrt( -M2) is returned

Definition at line 283 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::M2 ( ) const [inline]

return magnitude (mass) squared M2 = T**2 - X**2 - Y**2 - Z**2 (we use -,-,-,+ metric)

Definition at line 277 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Beta(), and ROOT::Math::LorentzVector< CoordSystem >::BoostToCM().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::mag ( ) const [inline]

Definition at line 632 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::mag2 ( ) const [inline]

Definition at line 631 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::mass ( ) const [inline]

Definition at line 639 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::mass2 ( ) const [inline]

Definition at line 640 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::mt ( ) const [inline]

Definition at line 633 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Mt ( ) const [inline]

return the transverse mass

$\sqrt{ m_t^2 = E^2 - p{_z}^2} X sign(E^ - p{_z}^2)$

Definition at line 314 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::mt2 ( ) const [inline]

Definition at line 634 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Mt2 ( ) const [inline]

return the transverse mass squared

$m_t^2 = E^2 - p{_z}^2$

Definition at line 308 of file GenVector/LorentzVector.h.

template<class CoordSystem>

bool ROOT::Math::LorentzVector< CoordSystem >::operator!= ( const LorentzVector< CoordSystem > & rhs ) const [inline]

Definition at line 245 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::operator==().

template<class CoordSystem>

LorentzVector ROOT::Math::LorentzVector< CoordSystem >::operator* ( const Scalar & a ) const [inline]

product of a LorentzVector by a scalar quantity

Parameters:

a

scalar quantity of type a

Returns:: a new mathcoreLorentzVector q = v * a same type as v

Definition at line 445 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::operator-().

template<class CoordSystem>

LorentzVector& ROOT::Math::LorentzVector< CoordSystem >::operator*= ( Scalar a ) [inline]

multiplication by a scalar quantity v *= a

Definition at line 427 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector ROOT::Math::LorentzVector< CoordSystem >::operator+ ( ) const [inline]

Definition at line 471 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class OtherLorentzVector >

LorentzVector ROOT::Math::LorentzVector< CoordSystem >::operator+ ( const OtherLorentzVector< CoordSystem > & v2 ) const [inline]

addition of two LorentzVectors (v3 = v1 + v2) Enable the addition with any other LorentzVector

Parameters:

v2

any LorentzVector implementing the x(), y() , z() and t() member functions

Returns:: a new LorentzVector of the same type as v1

Definition at line 401 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class OtherLorentzVector >

LorentzVector& ROOT::Math::LorentzVector< CoordSystem >::operator+= ( const OtherLorentzVector< CoordSystem > & q ) [inline]

Self addition with another Vector ( v+= q ) Enable the addition with any other LorentzVector.

Parameters:

q

any LorentzVector implementing the x(), y() , z() and t() member functions

Definition at line 375 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::SetXYZT(), ROOT::Math::LorentzVector< CoordSystem >::t(), ROOT::Math::LorentzVector< CoordSystem >::x(), ROOT::Math::LorentzVector< CoordSystem >::y(), and ROOT::Math::LorentzVector< CoordSystem >::z().

template<class CoordSystem>

LorentzVector ROOT::Math::LorentzVector< CoordSystem >::operator- ( ) const [inline]

Negative of a LorentzVector (q = - v ).

Returns:: a new LorentzVector with opposite direction and time

Definition at line 466 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::operator*().

template<class CoordSystem>

template<class OtherLorentzVector >

LorentzVector ROOT::Math::LorentzVector< CoordSystem >::operator- ( const OtherLorentzVector< CoordSystem > & v2 ) const [inline]

subtraction of two LorentzVectors (v3 = v1 - v2) Enable the subtraction of any other LorentzVector

Parameters:

v2

any LorentzVector implementing the x(), y() , z() and t() member functions

Returns:: a new LorentzVector of the same type as v1

Definition at line 416 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class OtherLorentzVector >

LorentzVector& ROOT::Math::LorentzVector< CoordSystem >::operator-= ( const OtherLorentzVector< CoordSystem > & q ) [inline]

Self subtraction of another Vector from this ( v-= q ) Enable the addition with any other LorentzVector.

Parameters:

q

any LorentzVector implementing the x(), y() , z() and t() member functions

Definition at line 388 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::SetXYZT(), ROOT::Math::LorentzVector< CoordSystem >::t(), ROOT::Math::LorentzVector< CoordSystem >::x(), ROOT::Math::LorentzVector< CoordSystem >::y(), and ROOT::Math::LorentzVector< CoordSystem >::z().

template<class CoordSystem>

LorentzVector<CoordSystem> ROOT::Math::LorentzVector< CoordSystem >::operator/ ( const Scalar & a ) const [inline]

Divide a LorentzVector by a scalar quantity.

Parameters:

a

scalar quantity of type a

Returns:: a new mathcoreLorentzVector q = v / a same type as v

Definition at line 456 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector& ROOT::Math::LorentzVector< CoordSystem >::operator/= ( Scalar a ) [inline]

division by a scalar quantity v /= a

Definition at line 435 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class ForeignLorentzVector >

LorentzVector& ROOT::Math::LorentzVector< CoordSystem >::operator= ( const ForeignLorentzVector< CoordSystem > & v ) [inline]

assignment from any other Lorentz vector implementing x(), y(), z() and t()

Definition at line 131 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::SetXYZT().

template<class CoordSystem>

template<class OtherCoords >

LorentzVector& ROOT::Math::LorentzVector< CoordSystem >::operator= ( const LorentzVector< OtherCoords > & v ) [inline]

Assignment operator from a lorentz vector of arbitrary type.

Definition at line 121 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::Coordinates().

template<class CoordSystem>

bool ROOT::Math::LorentzVector< CoordSystem >::operator== ( const LorentzVector< CoordSystem > & rhs ) const [inline]

Exact equality.

Definition at line 242 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::operator!=().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::P ( ) const [inline]

Definition at line 288 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Beta(), ROOT::Math::LorentzVector< CoordSystem >::BoostToCM(), ROOT::Math::LorentzVector< CoordSystem >::ColinearRapidity(), ROOT::Math::LorentzVector< CoordSystem >::isLightlike(), ROOT::Math::LorentzVector< CoordSystem >::isSpacelike(), ROOT::Math::LorentzVector< CoordSystem >::isTimelike(), and ROOT::Math::LorentzVector< CoordSystem >::P2().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::P2 ( ) const [inline]

return the square of the spatial (3D) magnitude ( X**2 + Y**2 + Z**2 )

Definition at line 292 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::P().

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Beta(), and ROOT::Math::LorentzVector< CoordSystem >::Gamma().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::perp2 ( ) const [inline]

Definition at line 630 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Perp2 ( ) const [inline]

return the square of the transverse spatial component ( X**2 + Y**2 )

Definition at line 296 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::phi ( ) const [inline]

Definition at line 626 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Phi ( ) const [inline]

azimuthal Angle

Definition at line 331 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::pt ( ) const [inline]

Definition at line 629 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Pt ( ) const [inline]

return the transverse spatial component sqrt ( X**2 + Y**2 )

Definition at line 301 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::px ( ) const [inline]

Definition at line 620 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Px ( ) const [inline]

spatial X component

Definition at line 256 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::py ( ) const [inline]

Definition at line 621 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Py ( ) const [inline]

spatial Y component

Definition at line 261 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::pz ( ) const [inline]

Definition at line 622 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Pz ( ) const [inline]

spatial Z component

Definition at line 266 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Rapidity().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::r ( ) const [inline]

Definition at line 624 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::R ( ) const [inline]

return the spatial (3D) magnitude ( sqrt(X**2 + Y**2 + Z**2) )

Definition at line 287 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Rapidity ( ) const [inline]

Rapidity relative to the Z axis: .5 log [(E+Pz)/(E-Pz)].

Definition at line 480 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::E(), log(), and ROOT::Math::LorentzVector< CoordSystem >::Pz().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::rho ( ) const [inline]

Definition at line 627 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Rho ( ) const [inline]

Definition at line 302 of file GenVector/LorentzVector.h.

template<class CoordSystem>

template<class IT >

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetCoordinates	(	IT	begin,
		IT	end
	)			`[inline]`

Set internal data based on 4 Scalars at *begin to *end.

Definition at line 181 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::SetCoordinates().

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetCoordinates	(	Scalar	a,
		Scalar	b,
		Scalar	c,
		Scalar	d
	)			`[inline]`

Set internal data based on 4 Scalar numbers.

Definition at line 172 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetCoordinates ( const Scalar src[] ) [inline]

Set internal data based on an array of 4 Scalar numbers.

Definition at line 164 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::operator>>(), and ROOT::Math::LorentzVector< CoordSystem >::SetCoordinates().

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetE ( Scalar a ) [inline]

Methods setting a Single-component Work only if the component is one of which the vector is represented.

For example SetE will work for a PxPyPzE Vector but not for a PxPyPzM Vector.

Definition at line 648 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetEta ( Scalar a ) [inline]

Definition at line 649 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetM ( Scalar a ) [inline]

Definition at line 650 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetPhi ( Scalar a ) [inline]

Definition at line 651 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetPt ( Scalar a ) [inline]

Definition at line 652 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetPx ( Scalar a ) [inline]

Definition at line 653 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetPxPyPzE	(	Scalar	xx,
		Scalar	yy,
		Scalar	zz,
		Scalar	ee
	)			`[inline]`

Definition at line 232 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetPy ( Scalar a ) [inline]

Definition at line 654 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetPz ( Scalar a ) [inline]

Definition at line 655 of file GenVector/LorentzVector.h.

template<class CoordSystem>

LorentzVector<CoordSystem>& ROOT::Math::LorentzVector< CoordSystem >::SetXYZT	(	Scalar	xx,
		Scalar	yy,
		Scalar	zz,
		Scalar	tt
	)			`[inline]`

set the values of the vector from the cartesian components (x,y,z,t) (if the vector is held in another coordinates, like (Pt,eta,phi,m) then (x, y, z, t) are converted to that form)

Definition at line 228 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::VectorUtil::Mult(), ROOT::Math::LorentzVector< CoordSystem >::operator+=(), ROOT::Math::LorentzVector< CoordSystem >::operator-=(), and ROOT::Math::LorentzVector< CoordSystem >::operator=().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::t ( ) const [inline]

Definition at line 619 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Dot(), ROOT::Math::VectorUtil::Mult(), ROOT::Math::LorentzVector< CoordSystem >::operator+=(), and ROOT::Math::LorentzVector< CoordSystem >::operator-=().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::T ( ) const [inline]

Definition at line 272 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzRotation::operator()(), ROOT::Math::BoostZ::operator()(), ROOT::Math::BoostY::operator()(), ROOT::Math::BoostX::operator()(), and ROOT::Math::Boost::operator()().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::theta ( ) const [inline]

Definition at line 625 of file GenVector/LorentzVector.h.

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Theta ( ) const [inline]

polar Angle

Definition at line 336 of file GenVector/LorentzVector.h.

template<class CoordSystem>

::ROOT::Math::DisplacementVector3D<Cartesian3D<Scalar> > ROOT::Math::LorentzVector< CoordSystem >::Vect ( ) const [inline]

get the spatial components of the Vector in a DisplacementVector based on Cartesian Coordinates

Definition at line 348 of file GenVector/LorentzVector.h.

References ROOT::Math::LorentzVector< CoordSystem >::X(), ROOT::Math::LorentzVector< CoordSystem >::Y(), and ROOT::Math::LorentzVector< CoordSystem >::Z().

Referenced by ROOT::Math::LorentzVector< CoordSystem >::BoostToCM(), ROOT::Math::Transform3D::operator()(), ROOT::Math::RotationZYX::operator()(), ROOT::Math::RotationZ::operator()(), ROOT::Math::RotationY::operator()(), ROOT::Math::RotationX::operator()(), ROOT::Math::Rotation3D::operator()(), ROOT::Math::Quaternion::operator()(), ROOT::Math::EulerAngles::operator()(), and ROOT::Math::AxisAngle::operator()().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::x ( ) const [inline]

Definition at line 616 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Dot(), ROOT::Math::VectorUtil::Mult(), ROOT::Math::LorentzVector< CoordSystem >::operator+=(), and ROOT::Math::LorentzVector< CoordSystem >::operator-=().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::X ( ) const [inline]

Definition at line 257 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzRotation::operator()(), ROOT::Math::BoostZ::operator()(), ROOT::Math::BoostY::operator()(), ROOT::Math::BoostX::operator()(), ROOT::Math::Boost::operator()(), and ROOT::Math::LorentzVector< CoordSystem >::Vect().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::y ( ) const [inline]

Definition at line 617 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Dot(), ROOT::Math::VectorUtil::Mult(), ROOT::Math::LorentzVector< CoordSystem >::operator+=(), and ROOT::Math::LorentzVector< CoordSystem >::operator-=().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Y ( ) const [inline]

Definition at line 262 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzRotation::operator()(), ROOT::Math::BoostZ::operator()(), ROOT::Math::BoostY::operator()(), ROOT::Math::BoostX::operator()(), ROOT::Math::Boost::operator()(), and ROOT::Math::LorentzVector< CoordSystem >::Vect().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::z ( ) const [inline]

Definition at line 618 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzVector< CoordSystem >::Dot(), ROOT::Math::VectorUtil::Mult(), ROOT::Math::LorentzVector< CoordSystem >::operator+=(), and ROOT::Math::LorentzVector< CoordSystem >::operator-=().

template<class CoordSystem>

Scalar ROOT::Math::LorentzVector< CoordSystem >::Z ( ) const [inline]

Definition at line 267 of file GenVector/LorentzVector.h.

Referenced by ROOT::Math::LorentzRotation::operator()(), ROOT::Math::BoostZ::operator()(), ROOT::Math::BoostY::operator()(), ROOT::Math::BoostX::operator()(), ROOT::Math::Boost::operator()(), and ROOT::Math::LorentzVector< CoordSystem >::Vect().

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

GenVector/LorentzVector.h


Public Types
typedef CoordSystem::Scalar	Scalar
typedef CoordSystem	CoordinateType
typedef DisplacementVector3D < Cartesian3D< Scalar > >	BetaVector
Public Member Functions
	LorentzVector ()
	default constructor of an empty vector (Px = Py = Pz = E = 0 )
	LorentzVector (const Scalar &a, const Scalar &b, const Scalar &c, const Scalar &d)
	generic constructors from four scalar values.
template<class Coords >
	LorentzVector (const LorentzVector< Coords > &v)
	constructor from a LorentzVector expressed in different coordinates, or using a different Scalar type
template<class ForeignLorentzVector >
	LorentzVector (const ForeignLorentzVector &v)
	Construct from a foreign 4D vector type, for example, HepLorentzVector Precondition: v must implement methods x(), y(), z(), and t().
template<class OtherCoords >
LorentzVector &	operator= (const LorentzVector< OtherCoords > &v)
	Assignment operator from a lorentz vector of arbitrary type.
template<class ForeignLorentzVector >
LorentzVector &	operator= (const ForeignLorentzVector &v)
	assignment from any other Lorentz vector implementing x(), y(), z() and t()
const CoordSystem &	Coordinates () const
	Retrieve a const reference to the coordinates object.
LorentzVector< CoordSystem > &	SetCoordinates (const Scalar src[])
	Set internal data based on an array of 4 Scalar numbers.
LorentzVector< CoordSystem > &	SetCoordinates (Scalar a, Scalar b, Scalar c, Scalar d)
	Set internal data based on 4 Scalar numbers.
template<class IT >
LorentzVector< CoordSystem > &	SetCoordinates (IT begin, IT end)
	Set internal data based on 4 Scalars at begin to end.
void	GetCoordinates (Scalar &a, Scalar &b, Scalar &c, Scalar &d) const
	get internal data into 4 Scalar numbers
void	GetCoordinates (Scalar dest[]) const
	get internal data into an array of 4 Scalar numbers
template<class IT >
void	GetCoordinates (IT begin, IT end) const
	get internal data into 4 Scalars at begin to end
template<class IT >
void	GetCoordinates (IT begin) const
	get internal data into 4 Scalars at *begin
LorentzVector< CoordSystem > &	SetXYZT (Scalar xx, Scalar yy, Scalar zz, Scalar tt)
	set the values of the vector from the cartesian components (x,y,z,t) (if the vector is held in another coordinates, like (Pt,eta,phi,m) then (x, y, z, t) are converted to that form)
LorentzVector< CoordSystem > &	SetPxPyPzE (Scalar xx, Scalar yy, Scalar zz, Scalar ee)
bool	operator== (const LorentzVector &rhs) const
	Exact equality.
bool	operator!= (const LorentzVector &rhs) const
Scalar	Px () const
	spatial X component
Scalar	X () const
Scalar	Py () const
	spatial Y component
Scalar	Y () const
Scalar	Pz () const
	spatial Z component
Scalar	Z () const
Scalar	E () const
	return 4-th component (time, or energy for a 4-momentum vector)
Scalar	T () const
Scalar	M2 () const
	return magnitude (mass) squared M2 = T2 - X2 - Y2 - Z2 (we use -,-,-,+ metric)
Scalar	M () const
	return magnitude (mass) using the (-,-,-,+) metric.
Scalar	R () const
	return the spatial (3D) magnitude ( sqrt(X2 + Y2 + Z**2) )
Scalar	P () const
Scalar	P2 () const
	return the square of the spatial (3D) magnitude ( X2 + Y2 + Z**2 )
Scalar	Perp2 () const
	return the square of the transverse spatial component ( X2 + Y2 )
Scalar	Pt () const
	return the transverse spatial component sqrt ( X2 + Y2 )
Scalar	Rho () const
Scalar	Mt2 () const
	return the transverse mass squared $m_t^2 = E^2 - p{_z}^2$
Scalar	Mt () const
	return the transverse mass $\sqrt{ m_t^2 = E^2 - p{_z}^2} X sign(E^ - p{_z}^2)$
Scalar	Et2 () const
	return the transverse energy squared $e_t = \frac{E^2 p_{\perp}^2 }{ \|p\|^2 }$
Scalar	Et () const
	return the transverse energy $e_t = \sqrt{ \frac{E^2 p_{\perp}^2 }{ \|p\|^2 } } X sign(E)$
Scalar	Phi () const
	azimuthal Angle
Scalar	Theta () const
	polar Angle
Scalar	Eta () const
	pseudorapidity $\eta = - \ln { \tan { \frac { \theta} {2} } }$
::ROOT::Math::DisplacementVector3D < Cartesian3D< Scalar > >	Vect () const
	get the spatial components of the Vector in a DisplacementVector based on Cartesian Coordinates
template<class OtherLorentzVector >
Scalar	Dot (const OtherLorentzVector &q) const
	scalar (Dot) product of two LorentzVector vectors (metric is -,-,-,+) Enable the product using any other LorentzVector implementing the x(), y() , y() and t() member functions
template<class OtherLorentzVector >
LorentzVector &	operator+= (const OtherLorentzVector &q)
	Self addition with another Vector ( v+= q ) Enable the addition with any other LorentzVector.
template<class OtherLorentzVector >
LorentzVector &	operator-= (const OtherLorentzVector &q)
	Self subtraction of another Vector from this ( v-= q ) Enable the addition with any other LorentzVector.
template<class OtherLorentzVector >
LorentzVector	operator+ (const OtherLorentzVector &v2) const
	addition of two LorentzVectors (v3 = v1 + v2) Enable the addition with any other LorentzVector
template<class OtherLorentzVector >
LorentzVector	operator- (const OtherLorentzVector &v2) const
	subtraction of two LorentzVectors (v3 = v1 - v2) Enable the subtraction of any other LorentzVector
LorentzVector &	operator*= (Scalar a)
	multiplication by a scalar quantity v *= a
LorentzVector &	operator/= (Scalar a)
	division by a scalar quantity v /= a
LorentzVector	operator* (const Scalar &a) const
	product of a LorentzVector by a scalar quantity
LorentzVector< CoordSystem >	operator/ (const Scalar &a) const
	Divide a LorentzVector by a scalar quantity.
LorentzVector	operator- () const
	Negative of a LorentzVector (q = - v ).
LorentzVector	operator+ () const
Scalar	Rapidity () const
	Rapidity relative to the Z axis: .5 log [(E+Pz)/(E-Pz)].
Scalar	ColinearRapidity () const
	Rapidity in the direction of travel: atanh (\|P\|/E)=.5 log[(E+P)/(E-P)].
bool	isTimelike () const
	Determine if momentum-energy can represent a physical massive particle.
bool	isLightlike (Scalar tolerance=100 *std::numeric_limits< Scalar >::epsilon()) const
	Determine if momentum-energy can represent a massless particle.
bool	isSpacelike () const
	Determine if momentum-energy is spacelike, and represents a tachyon.
BetaVector	BoostToCM () const
	The beta vector for the boost that would bring this vector into its center of mass frame (zero momentum).
template<class Other4Vector >
BetaVector	BoostToCM (const Other4Vector &v) const
	The beta vector for the boost that would bring this vector into its center of mass frame (zero momentum).
Scalar	Beta () const
	Return beta scalar value.
Scalar	Gamma () const
	Return Gamma scalar value.
Scalar	x () const
Scalar	y () const
Scalar	z () const
Scalar	t () const
Scalar	px () const
Scalar	py () const
Scalar	pz () const
Scalar	e () const
Scalar	r () const
Scalar	theta () const
Scalar	phi () const
Scalar	rho () const
Scalar	eta () const
Scalar	pt () const
Scalar	perp2 () const
Scalar	mag2 () const
Scalar	mag () const
Scalar	mt () const
Scalar	mt2 () const
Scalar	energy () const
Scalar	mass () const
Scalar	mass2 () const
LorentzVector< CoordSystem > &	SetE (Scalar a)
	Methods setting a Single-component Work only if the component is one of which the vector is represented.
LorentzVector< CoordSystem > &	SetEta (Scalar a)
LorentzVector< CoordSystem > &	SetM (Scalar a)
LorentzVector< CoordSystem > &	SetPhi (Scalar a)
LorentzVector< CoordSystem > &	SetPt (Scalar a)
LorentzVector< CoordSystem > &	SetPx (Scalar a)
LorentzVector< CoordSystem > &	SetPy (Scalar a)
LorentzVector< CoordSystem > &	SetPz (Scalar a)

ROOT::Math::LorentzVector< CoordSystem > Class Template Reference [GenVector]

Public Types

Public Member Functions

Detailed Description

template<class CoordSystem> class ROOT::Math::LorentzVector< CoordSystem >

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

ROOT::Math::LorentzVector< CoordSystem > Class Template Reference
[GenVector]

template<class CoordSystem>
class ROOT::Math::LorentzVector< CoordSystem >