#include <VectorSpinInfo.h>
Public Member Functions | |
virtual void | transform (const LorentzMomentum &, const LorentzRotation &) |
Perform a Lorentz rotation of the spin information. | |
virtual EIPtr | clone () const |
Standard clone method. | |
Standard constructors and destructors. | |
VectorSpinInfo () | |
Default constructor. | |
VectorSpinInfo (const Lorentz5Momentum &p, bool time) | |
Standard Constructor. | |
Set and get methods for the basis state. | |
void | setBasisState (unsigned int hel, const LorentzPolarizationVector &in) const |
Set the basis state, this is production state. | |
void | setDecayState (unsigned int hel, const LorentzPolarizationVector &in) const |
Set the basis state for the decay. | |
const LorentzPolarizationVector & | getProductionBasisState (unsigned int hel) const |
Get the basis state for the production for the given helicity, hel (0,1,2 as described above. | |
const LorentzPolarizationVector & | getDecayBasisState (unsigned int hel) const |
Get the basis state for the decay for the given helicity, hel (0,1,2 as described above. | |
Static Public Member Functions | |
static void | Init () |
Standard Init function used to initialize the interfaces. | |
Private Member Functions | |
VectorSpinInfo & | operator= (const VectorSpinInfo &) |
Private and non-existent assignment operator. | |
Private Attributes | |
vector< LorentzPolarizationVector > | _productionstates |
Basis states in the frame in which the particle was produced. | |
vector< LorentzPolarizationVector > | _decaystates |
Basis states in the frame in which the particle decays. | |
vector< LorentzPolarizationVector > | _currentstates |
Basis states in the current frame of the particle. | |
bool | _decaycalc |
True if the decay state has been set. | |
Static Private Attributes | |
static NoPIOClassDescription < VectorSpinInfo > | initVectorSpinInfo |
Describe a concrete class without persistent data. |
It inherits from the SpinInfo class and implements the storage of the basis vectors.
These basis states should be set by either matrixelements or decayers which are capable of generating spin correlation information.
The basis states in the rest frame of the particles can then be accessed by decayers to produce the correct correlation.
N.B. in our convention 0 is the helicity state, 1 is the helicity state and 2 is the helicity state.
Definition at line 39 of file VectorSpinInfo.h.
ThePEG::Helicity::VectorSpinInfo::VectorSpinInfo | ( | const Lorentz5Momentum & | p, | |
bool | time | |||
) | [inline] |
Standard Constructor.
p | the production momentum. | |
time | true if the particle is time-like. |
Definition at line 57 of file VectorSpinInfo.h.
void ThePEG::Helicity::VectorSpinInfo::setBasisState | ( | unsigned int | hel, | |
const LorentzPolarizationVector & | in | |||
) | const [inline] |
Set the basis state, this is production state.
hel | the helicity (0,1,2 as described above.) | |
in | the LorentzPolarizationVector for the given helicity. |
Definition at line 72 of file VectorSpinInfo.h.
References _currentstates, and _productionstates.
void ThePEG::Helicity::VectorSpinInfo::setDecayState | ( | unsigned int | hel, | |
const LorentzPolarizationVector & | in | |||
) | const [inline] |
Set the basis state for the decay.
hel | the helicity (0,1,2 as described above.) | |
in | the LorentzPolarizationVector for the given helicity. |
Definition at line 84 of file VectorSpinInfo.h.
References _decaycalc, and _decaystates.
const LorentzPolarizationVector& ThePEG::Helicity::VectorSpinInfo::getProductionBasisState | ( | unsigned int | hel | ) | const [inline] |
Get the basis state for the production for the given helicity, hel (0,1,2 as described above.
)
Definition at line 95 of file VectorSpinInfo.h.
References _productionstates.
const LorentzPolarizationVector& ThePEG::Helicity::VectorSpinInfo::getDecayBasisState | ( | unsigned int | hel | ) | const [inline] |
Get the basis state for the decay for the given helicity, hel (0,1,2 as described above.
)
Definition at line 104 of file VectorSpinInfo.h.
References _currentstates, _decaycalc, and _decaystates.