class ROOT::Math::PxPyPzM4D<double>

Set internal data based on an array of 4 Scalar numbers

get internal data into an array of 4 Scalar numbers

Set internal data based on 4 Scalar numbers

get internal data into 4 Scalar numbers

 --------- Coordinates and Coordinate-like Scalar properties -------------
 cartesian (Minkowski)coordinate accessors

 other coordinate representation

Energy

quared magnitude of spatial component

magnitude of spatial components (magnitude of 3-momentum)

vector magnitude squared (or mass squared)
In case of negative mass (spacelike particles return negative values)

energy squared

transverse spatial component squared

Transverse spatial component (P_perp or rho)

transverse mass squared

transverse mass

transverse energy squared

 but it is faster to form p^2 from pt^2

transverse energy

azimuthal angle

polar angle

pseudorapidity

 --------- Set Coordinates of this system  ---------------

set X value

set Y value

set Z value

set T value

t all valu

 ------ Manipulations -------------

negate the 4-vector

scale coordinate values by a scalar quantity a

 ============= Compatibility section ==================
 The following make this coordinate system look enough like a CLHEP
 vector that an assignment member template can work with either

 ====== Set member functions for coordinates in other systems =======

 restrict the value of negative mass to avoid unphysical negative E2 values
 M2 must be less than P2 for the tachionic particles - otherwise use positive values