Rivet
1.8.0
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Specialized version of the FourVector with momentum/energy functionality. More...
#include <Vector4.hh>
Classes | |
struct | byEAscending |
Struct for sorting by increasing energy. More... | |
struct | byEDescending |
Struct for sorting by decreasing energy. More... |
Public Member Functions | |
template<typename V4 > | |
FourMomentum (const V4 &other) | |
FourMomentum (const Vector< 4 > &other) | |
FourMomentum (const double E, const double px, const double py, const double pz) | |
double | E () const |
Get energy ![]() | |
Vector3 | p () const |
Get 3-momentum part, ![]() | |
double | px () const |
Get x-component of momentum ![]() | |
double | py () const |
Get y-component of momentum ![]() | |
double | pz () const |
Get z-component of momentum ![]() | |
FourMomentum & | setE (double E) |
Set energy ![]() | |
FourMomentum & | setPx (double px) |
Set x-component of momentum ![]() | |
FourMomentum & | setPy (double py) |
Set y-component of momentum ![]() | |
FourMomentum & | setPz (double pz) |
Set z-component of momentum ![]() | |
double | mass () const |
Get the mass ![]() | |
double | massT () const |
Calculate the transverse mass ![]() | |
double | mass2 () const |
Get the squared mass ![]() | |
double | massT2 () const |
Calculate the squared transverse mass ![]() | |
double | rapidity () const |
Calculate the rapidity. | |
double | pT2 () const |
Calculate the squared transverse momentum ![]() | |
double | pT () const |
Calculate the transverse momentum ![]() | |
double | Et2 () const |
Calculate the transverse energy ![]() | |
double | Et () const |
Calculate the transverse energy ![]() | |
Vector3 | boostVector () const |
Calculate the boost vector (in units of ![]() | |
FourMomentum & | operator*= (double a) |
Multiply by a scalar. | |
FourMomentum & | operator/= (double a) |
Divide by a scalar. | |
FourMomentum & | operator+= (const FourMomentum &v) |
FourMomentum & | operator-= (const FourMomentum &v) |
FourMomentum | operator- () const |
Invert the vector. | |
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template<typename V4 > | |
FourVector (const V4 &other) | |
FourVector (const Vector< 4 > &other) | |
FourVector (const double t, const double x, const double y, const double z) | |
double | t () const |
double | x () const |
double | y () const |
double | z () const |
FourVector & | setT (const double t) |
FourVector & | setX (const double x) |
FourVector & | setY (const double y) |
FourVector & | setZ (const double z) |
double | invariant () const |
double | angle (const FourVector &v) const |
Angle between this vector and another. | |
double | angle (const Vector3 &v3) const |
Angle between this vector and another (3-vector) | |
double | polarRadius2 () const |
Square of the projection of the 3-vector on to the ![]() polarRadius , as it avoids the square root. Use it if you only need the squared value, or e.g. an ordering by magnitude. | |
double | perp2 () const |
Synonym for polarRadius2. | |
double | rho2 () const |
Synonym for polarRadius2. | |
double | polarRadius () const |
Projection of 3-vector on to the ![]() | |
double | perp () const |
Synonym for polarRadius. | |
double | rho () const |
Synonym for polarRadius. | |
double | azimuthalAngle (const PhiMapping mapping=ZERO_2PI) const |
Angle subtended by the 3-vector's projection in x-y and the x-axis. | |
double | phi (const PhiMapping mapping=ZERO_2PI) const |
Synonym for azimuthalAngle. | |
double | polarAngle () const |
Angle subtended by the 3-vector and the z-axis. | |
double | theta () const |
Synonym for polarAngle. | |
double | pseudorapidity () const |
Pseudorapidity (defined purely by the 3-vector components) | |
double | eta () const |
Synonym for pseudorapidity. | |
Vector3 | vector3 () const |
Get the spatial part of the 4-vector as a 3-vector. | |
double | contract (const FourVector &v) const |
Contract two 4-vectors, with metric signature (+ - - -). | |
double | dot (const FourVector &v) const |
Contract two 4-vectors, with metric signature (+ - - -). | |
double | operator* (const FourVector &v) const |
Contract two 4-vectors, with metric signature (+ - - -). | |
FourVector & | operator+= (const FourVector &v) |
FourVector & | operator-= (const FourVector &v) |
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Vector (const Vector< N > &other) | |
const double & | get (const size_t index) const |
const double & | operator[] (const size_t index) const |
Direct access to vector elements by index. | |
double & | operator[] (const size_t index) |
Direct access to vector elements by index. | |
Vector< N > & | set (const size_t index, const double value) |
Set indexed value. | |
size_t | size () const |
Vector dimensionality. | |
bool | isZero (double tolerance=1E-5) const |
Check for nullness, allowing for numerical precision. | |
double | mod2 () const |
Calculate the modulus-squared of a vector. ![]() | |
double | mod () const |
Calculate the modulus of a vector. ![]() | |
bool | operator== (const Vector< N > &a) const |
bool | operator!= (const Vector< N > &a) const |
bool | operator< (const Vector< N > &a) const |
bool | operator<= (const Vector< N > &a) const |
bool | operator> (const Vector< N > &a) const |
bool | operator>= (const Vector< N > &a) const |
Friends | |
FourMomentum | multiply (const double a, const FourMomentum &v) |
FourMomentum | multiply (const FourMomentum &v, const double a) |
FourMomentum | add (const FourMomentum &a, const FourMomentum &b) |
FourMomentum | transform (const LorentzTransform <, const FourMomentum &v4) |
Additional Inherited Members | |
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double & | get (const size_t index) |
Specialized version of the FourVector with momentum/energy functionality.
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inline |
Calculate the boost vector (in units of ).
References E(), px(), py(), and pz().
Referenced by Rivet::boostVector(), and Rivet::DISKinematics::project().