Four-component Lorentz vector for relativistic kinematics. More...

#include <fizika.h>

Public Member Functions
	lorentz4 ()
	Default constructor (uninitialized). More...

	lorentz4 (double _px, double _py, double _pz, double _e)
	Construct from px, py, pz, and energy. More...

	lorentz4 (vector3 v, double energy)
	Construct from a 3-vector and energy. More...

	~lorentz4 ()

double	px () const

double	py () const

double	pz () const

double	x () const

double	y () const

double	z () const

double	theta () const

double	phi () const

double	m2 () const

double	p () const

double	e () const

double	t () const

vector3	vect () const

void	setX (double _p)
	Set the X momentum component. More...

void	setY (double _p)
	Set the Y momentum component. More...

void	setZ (double _p)
	Set the Z momentum component. More...

void	setT (double _eg)
	Set the energy/time component. More...

void	setXYZM (double _x, double _y, double _z, double _m)
	Set components from momentum and mass; energy is computed. More...

void	setXYZE (double _x, double _y, double _z, double _e)
	Set components from momentum and energy directly. More...

void	setVectM (vector3 &_v, double _mass)
	Set from a 3-vector and mass; energy is computed. More...

void	rotateX (double angle)
	Rotate the 3-momentum around the X axis. More...

void	rotateY (double angle)
	Rotate the 3-momentum around the Y axis. More...

void	rotateZ (double angle)
	Rotate the 3-momentum around the Z axis. More...

double	m () const

vector3	boostVector ()

void	boost (vector3 vb)
	Apply a Lorentz boost using a boost vector. More...

void	boost (double bx, double by, double bz)
	Apply a Lorentz boost using beta components. More...

void	print (const char *_line="LV ")
	Print the Lorentz vector components, magnitude, and mass to stdout. More...

lorentz4 &	operator= (const lorentz4 &)
	Copy-assignment operator. More...

lorentz4	operator+ (const lorentz4 &) const
	Lorentz vector addition. More...

lorentz4	operator- (const lorentz4 &) const
	Lorentz vector subtraction. More...

lorentz4 &	operator+= (const lorentz4 &)
	Add another Lorentz vector to this one in place. More...

lorentz4 &	operator-= (const lorentz4 &)
	Subtract another Lorentz vector from this one in place. More...

Detailed Description

Four-component Lorentz vector for relativistic kinematics.

Stores a 3-momentum vector and an energy component. Supports Lorentz boosts, invariant mass calculation, and standard arithmetic operators.

Definition at line 213 of file fizika.h.

Constructor & Destructor Documentation

◆ lorentz4() [1/3]

fizika::lorentz4::lorentz4 ( )

inline

Default constructor (uninitialized).

Definition at line 222 of file fizika.h.

◆ lorentz4() [2/3]

fizika::lorentz4::lorentz4	(	double	_px,
		double	_py,
		double	_pz,
		double	_e
	)

inline

Construct from px, py, pz, and energy.

Definition at line 224 of file fizika.h.

◆ lorentz4() [3/3]

fizika::lorentz4::lorentz4	(	vector3	v,
		double	energy
	)

inline

Construct from a 3-vector and energy.

Definition at line 227 of file fizika.h.

◆ ~lorentz4()

fizika::lorentz4::~lorentz4 ( )

inline

Definition at line 228 of file fizika.h.

Member Function Documentation

◆ boost() [1/2]

void fizika::lorentz4::boost	(	double	bx,
		double	by,
		double	bz
	)

inline

Apply a Lorentz boost using beta components.

Parameters

bx	Beta x component
by	Beta y component
bz	Beta z component

Definition at line 326 of file fizika.h.

◆ boost() [2/2]

void fizika::lorentz4::boost ( vector3 vb )

inline

Apply a Lorentz boost using a boost vector.

Parameters

vb	Boost vector (beta_x, beta_y, beta_z)

Definition at line 317 of file fizika.h.

◆ boostVector()

vector3 fizika::lorentz4::boostVector ( )

inline

Returns: The boost vector (beta = p/E).

Definition at line 310 of file fizika.h.

◆ e()

double fizika::lorentz4::e ( ) const

inline

Returns: Energy component.

Definition at line 252 of file fizika.h.

◆ m()

double fizika::lorentz4::m ( ) const

inline

Returns: Invariant mass (negative if m2 < 0).

Definition at line 303 of file fizika.h.

◆ m2()

double fizika::lorentz4::m2 ( ) const

inline

Returns: Invariant mass squared (E^2 - p^2).

Definition at line 248 of file fizika.h.

◆ operator+()

lorentz4 fizika::lorentz4::operator+ ( const lorentz4 & q ) const

inline

Lorentz vector addition.

Definition at line 366 of file fizika.h.

◆ operator+=()

lorentz4 & fizika::lorentz4::operator+= ( const lorentz4 & q )

inline

Add another Lorentz vector to this one in place.

Definition at line 369 of file fizika.h.

◆ operator-()

lorentz4 fizika::lorentz4::operator- ( const lorentz4 & q ) const

inline

Lorentz vector subtraction.

Definition at line 371 of file fizika.h.

◆ operator-=()

lorentz4 & fizika::lorentz4::operator-= ( const lorentz4 & q )

inline

Subtract another Lorentz vector from this one in place.

Definition at line 374 of file fizika.h.

◆ operator=()

lorentz4 & fizika::lorentz4::operator= ( const lorentz4 & q )

inline

Copy-assignment operator.

Definition at line 360 of file fizika.h.

◆ p()

double fizika::lorentz4::p ( ) const

inline

Returns: Magnitude of the 3-momentum.

Definition at line 250 of file fizika.h.

◆ phi()

double fizika::lorentz4::phi ( ) const

inline

Returns: Azimuthal angle of the 3-momentum in radians.

Definition at line 245 of file fizika.h.

◆ print()

void fizika::lorentz4::print ( const char * _line = "LV " )

inline

Print the Lorentz vector components, magnitude, and mass to stdout.

Parameters

_line Label prefix for the output line

Definition at line 344 of file fizika.h.

◆ px()

double fizika::lorentz4::px ( ) const

inline

Returns: X component of the 3-momentum.

Definition at line 231 of file fizika.h.

◆ py()

double fizika::lorentz4::py ( ) const

inline

Returns: Y component of the 3-momentum.

Definition at line 233 of file fizika.h.

◆ pz()

double fizika::lorentz4::pz ( ) const

inline

Returns: Z component of the 3-momentum.

Definition at line 235 of file fizika.h.

◆ rotateX()

void fizika::lorentz4::rotateX ( double angle )

inline

Rotate the 3-momentum around the X axis.

Parameters

angle Rotation angle in radians

Definition at line 291 of file fizika.h.

◆ rotateY()

void fizika::lorentz4::rotateY ( double angle )

inline

Rotate the 3-momentum around the Y axis.

Parameters

angle Rotation angle in radians

Definition at line 295 of file fizika.h.

◆ rotateZ()

void fizika::lorentz4::rotateZ ( double angle )

inline

Rotate the 3-momentum around the Z axis.

Parameters

angle Rotation angle in radians

Definition at line 299 of file fizika.h.

◆ setT()

void fizika::lorentz4::setT ( double _eg )

inline

Set the energy/time component.

Definition at line 266 of file fizika.h.

◆ setVectM()

void fizika::lorentz4::setVectM	(	vector3 &	_v,
		double	_mass
	)

inline

Set from a 3-vector and mass; energy is computed.

Definition at line 284 of file fizika.h.

◆ setX()

void fizika::lorentz4::setX ( double _p )

inline

Set the X momentum component.

Definition at line 260 of file fizika.h.

◆ setXYZE()

void fizika::lorentz4::setXYZE	(	double	_x,
		double	_y,
		double	_z,
		double	_e
	)

inline

Set components from momentum and energy directly.

Definition at line 277 of file fizika.h.

◆ setXYZM()

void fizika::lorentz4::setXYZM	(	double	_x,
		double	_y,
		double	_z,
		double	_m
	)

inline

Set components from momentum and mass; energy is computed.

Definition at line 269 of file fizika.h.

◆ setY()

void fizika::lorentz4::setY ( double _p )

inline

Set the Y momentum component.

Definition at line 262 of file fizika.h.

◆ setZ()

void fizika::lorentz4::setZ ( double _p )

inline

Set the Z momentum component.

Definition at line 264 of file fizika.h.

◆ t()

double fizika::lorentz4::t ( ) const

inline

Returns: Time/energy component (alias for e()).

Definition at line 254 of file fizika.h.

◆ theta()

double fizika::lorentz4::theta ( ) const

inline

Returns: Polar angle of the 3-momentum in radians.

Definition at line 243 of file fizika.h.

◆ vect()

vector3 fizika::lorentz4::vect ( ) const

inline

Returns: Copy of the 3-momentum vector.

Definition at line 256 of file fizika.h.

◆ x()

double fizika::lorentz4::x ( ) const

inline

Returns: X component (alias for px()).

Definition at line 237 of file fizika.h.

◆ y()

double fizika::lorentz4::y ( ) const

inline

Returns: Y component (alias for py()).

Definition at line 239 of file fizika.h.

◆ z()

double fizika::lorentz4::z ( ) const

inline

Returns: Z component (alias for pz()).

Definition at line 241 of file fizika.h.

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

hipo4/fizika.h

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

◆ lorentz4() [1/3]

◆ lorentz4() [2/3]

◆ lorentz4() [3/3]

◆ ~lorentz4()

Member Function Documentation

◆ boost() [1/2]

◆ boost() [2/2]

◆ boostVector()

◆ e()

◆ m()

◆ m2()

◆ operator+()

◆ operator+=()

◆ operator-()

◆ operator-=()

◆ operator=()

◆ p()

◆ phi()

◆ print()

◆ px()

◆ py()

◆ pz()

◆ rotateX()

◆ rotateY()

◆ rotateZ()

◆ setT()

◆ setVectM()

◆ setX()

◆ setXYZE()

◆ setXYZM()

◆ setY()

◆ setZ()

◆ t()

◆ theta()

◆ vect()

◆ x()

◆ y()

◆ z()