org.lcsim.util.fourvec

Class Momentum4Vector

java.lang.Object

org.lcsim.util.fourvec.Momentum4Vector

All Implemented Interfaces:

Lorentz4Vector

public class Momentum4Vector
extends Object
implements Lorentz4Vector

Field Summary

Fields

Modifier and Type	Field and Description
private double	_E
private double	_px
private double	_py
private double	_pz

Constructor Summary

Constructors

Constructor and Description
Momentum4Vector()
Momentum4Vector(double f1, double f2, double f3, double f4)
Momentum4Vector(Lorentz4Vector p)

Method Summary

Methods

Modifier and Type	Method and Description
Lorentz4Vector	boost(Lorentz4Vector prest)
Lorentz4Vector	divide(Lorentz4Vector y, double a)
double	dot(Lorentz4Vector y1)
double	E()
boolean	equals(Momentum4Vector y)
boolean	equals(Object o)
int	hashcode()
double	mass()
double	mass2()
Lorentz4Vector	minus(Lorentz4Vector y1, Lorentz4Vector y2) Subtract a four-vector and return the result.
double	p()
double	phi()
Lorentz4Vector	plus(Lorentz4Vector y2) Add a four-vector and returns the result.
void	plusEquals(double f1, double f2, double f3, double f4) Add the constituents of a four-vector to this four-vector.
void	plusEquals(Lorentz4Vector y1) Add a four-vector to this four-vector.
double	pT()
double	px()
double	py()
double	pz()
double	theta()
Lorentz4Vector	times(double a, Lorentz4Vector y)
Lorentz4Vector	times(Lorentz4Vector y, double a)
String	toString()
Lorentz4Vector[]	twobodyDecay(double m1, double m2)
double	vec3dot(Lorentz4Vector y1)

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

_E

private double _E

_px

private double _px

_py

private double _py

_pz

private double _pz

Constructor Detail

Momentum4Vector

public Momentum4Vector()

Momentum4Vector

public Momentum4Vector(double f1,
               double f2,
               double f3,
               double f4)

Momentum4Vector

public Momentum4Vector(Lorentz4Vector p)

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashcode

public int hashcode()

equals

public boolean equals(Momentum4Vector y)

plus

public Lorentz4Vector plus(Lorentz4Vector y2)

Description copied from interface: Lorentz4Vector

Add a four-vector and returns the result.

Specified by:

plus in interface Lorentz4Vector

Parameters:

y2 - Four-vector to add.

Returns:

Resulting four-vector sum.

plusEquals

public void plusEquals(Lorentz4Vector y1)

Description copied from interface: Lorentz4Vector

Add a four-vector to this four-vector.

Specified by:

plusEquals in interface Lorentz4Vector

Parameters:

y1 - Four-vector to add.

plusEquals

public void plusEquals(double f1,
              double f2,
              double f3,
              double f4)

Description copied from interface: Lorentz4Vector

Add the constituents of a four-vector to this four-vector.

Specified by:

plusEquals in interface Lorentz4Vector

Parameters:

f1 - first element

f2 - second element

f3 - third element

f4 - fourth element

minus

public Lorentz4Vector minus(Lorentz4Vector y1,
                   Lorentz4Vector y2)

Description copied from interface: Lorentz4Vector

Subtract a four-vector and return the result.

Specified by:

minus in interface Lorentz4Vector

Parameters:

y1 - Four-vector to add.

Returns:

Resulting four-vector difference.

times

public Lorentz4Vector times(double a,
                   Lorentz4Vector y)

Specified by:

times in interface Lorentz4Vector

times

public Lorentz4Vector times(Lorentz4Vector y,
                   double a)

Specified by:

times in interface Lorentz4Vector

divide

public Lorentz4Vector divide(Lorentz4Vector y,
                    double a)

Specified by:

divide in interface Lorentz4Vector

toString

public String toString()

Specified by:

toString in interface Lorentz4Vector

Overrides:

toString in class Object

dot

public double dot(Lorentz4Vector y1)

Specified by:

dot in interface Lorentz4Vector

vec3dot

public double vec3dot(Lorentz4Vector y1)

Specified by:

vec3dot in interface Lorentz4Vector

px

public double px()

Specified by:

px in interface Lorentz4Vector

py

public double py()

Specified by:

py in interface Lorentz4Vector

pz

public double pz()

Specified by:

pz in interface Lorentz4Vector

E

public double E()

Specified by:

E in interface Lorentz4Vector

pT

public double pT()

Specified by:

pT in interface Lorentz4Vector

p

public double p()

Specified by:

p in interface Lorentz4Vector

phi

public double phi()

Specified by:

phi in interface Lorentz4Vector

theta

public double theta()

Specified by:

theta in interface Lorentz4Vector

mass2

public double mass2()

Specified by:

mass2 in interface Lorentz4Vector

mass

public double mass()

Specified by:

mass in interface Lorentz4Vector

boost

public Lorentz4Vector boost(Lorentz4Vector prest)

Specified by:

boost in interface Lorentz4Vector

twobodyDecay

public Lorentz4Vector[] twobodyDecay(double m1,
                            double m2)