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FourVector is a simple representation of a physics 4 vector. More...
#include <SimpleVector.h>
Public Member Functions | |
FourVector (double xin, double yin, double zin, double tin=0) | |
constructor requiring at least x, y, and z | |
FourVector (double tin) | |
constructor requiring only t | |
template<class T > | |
FourVector (const T &v, typename detail::disable_if< detail::is_arithmetic< T >::value, void >::type *=0) | |
FourVector (const FourVector &v) | |
copy constructor | |
void | swap (FourVector &other) |
swap | |
double | px () const |
return px | |
double | py () const |
return py | |
double | pz () const |
return pz | |
double | e () const |
return E | |
double | x () const |
return x | |
double | y () const |
return y | |
double | z () const |
return z | |
double | t () const |
return t | |
double | m2 () const |
Invariant mass squared. | |
double | m () const |
Invariant mass. If m2() is negative then -sqrt(-m2()) is returned. | |
double | perp2 () const |
Transverse component of the spatial vector squared. | |
double | perp () const |
Transverse component of the spatial vector (R in cylindrical system). | |
double | theta () const |
The polar angle. | |
double | phi () const |
The azimuth angle. | |
double | rho () const |
spatial vector component magnitude | |
FourVector & | operator= (const FourVector &) |
make a copy | |
bool | operator== (const FourVector &) const |
equality | |
bool | operator!= (const FourVector &) const |
inequality | |
double | pseudoRapidity () const |
Returns the pseudo-rapidity, i.e. -ln(tan(theta/2)) | |
double | eta () const |
Pseudorapidity (of the space part) | |
void | set (double x, double y, double z, double t) |
set x, y, z, and t | |
void | setX (double xin) |
set x | |
void | setY (double yin) |
set y | |
void | setZ (double zin) |
set z | |
void | setT (double tin) |
set t | |
void | setPx (double xin) |
set px | |
void | setPy (double yin) |
set py | |
void | setPz (double zin) |
set pz | |
void | setE (double tin) |
set E | |
FourVector is a simple representation of a physics 4 vector.
For compatibility with existing code, the basic expected geometrical access methods are povided. Also, there is a templated constructor that will take another vector (HepLorentzVector, GenVector, ...) which must have the following methods: x(), y(), z(), t().
Definition at line 42 of file SimpleVector.h.
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inline |
templated constructor this is used ONLY if T is not arithmetic
Definition at line 60 of file SimpleVector.h.