TauolaHepMCParticle Class Reference

Inheritance diagram for TauolaHepMCParticle:
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Public Member Functions

 TauolaHepMCParticle ()
 TauolaHepMCParticle (HepMC::GenParticle *particle)
 TauolaHepMCParticle (int pdg_id, int status, double mass)
HepMC::GenParticle * getHepMC ()
void undecay ()
void setMothers (std::vector< TauolaParticle * > mothers)
void setDaughters (std::vector< TauolaParticle * > daughters)
std::vector< TauolaParticle * > getMothers ()
std::vector< TauolaParticle * > getDaughters ()
void setPdgID (int pdg_id)
void setStatus (int statu)
void setMass (double mass)
int getPdgID ()
int getStatus ()
int getBarcode ()
void checkMomentumConservation ()
void decayEndgame ()
TauolaHepMCParticle * createNewParticle (int pdg_id, int status, double mass, double px, double py, double pz, double e)
void print ()
double getPx ()
double getPy ()
double getPz ()
double getE ()
void setPx (double px)
void setPy (double py)
void setPz (double pz)
void setE (double e)
TauolaParticle * clone ()
double getAngle (TauolaParticle *)
void add (TauolaParticle *)
void subtract (TauolaParticle *)
void decay ()
void addDecayToEventRecord ()
int getSign ()
double getPolarimetricX ()
double getPolarimetricY ()
double getPolarimetricZ ()
bool hasDaughters ()
TauolaParticle * findLastSelf ()
std::vector< TauolaParticle * > findProductionMothers ()
void boostToRestFrame (TauolaParticle *boost)
void boostDaughtersToRestFrame (TauolaParticle *boost)
void boostFromRestFrame (TauolaParticle *boost)
void boostDaughtersFromRestFrame (TauolaParticle *boost)
void boostAlongZ (double pz, double e)
void rotate (int axis, double phi, int second_axis=Z_AXIS)
void rotateDaughters (int axis, double phi, int second_axis=Z_AXIS)
double getRotationAngle (int axis, int second_axis=Z_AXIS)
double getP ()
double getP (int axis)
void setP (int axis, double p_component)
double getMass ()

Static Public Attributes

static const int SAME_SIGN = 1
static const int OPPOSITE_SIGN = 2
static const int NA_SIGN = 3
static const int STABLE = 1
static const int DECAYED = 2
static const int HISTORY = 3
static const int X_AXIS = 1
static const int Y_AXIS = 2
static const int Z_AXIS = 3
static const int Z0 = 23
static const int HIGGS = 25
static const int HIGGS_A = 36
static const int HIGGS_PLUS = 37
static const int HIGGS_MINUS = -37
static const int W_PLUS = 24
static const int W_MINUS = -24
static const int GAMMA = 22
static const int TAU_PLUS = -15
static const int TAU_MINUS = 15
static const int TAU_NEUTRINO = 16
static const int TAU_ANTINEUTRINO = -16
static const int MUON_PLUS = -13
static const int MUON_MINUS = 13
static const int MUON_NEUTRINO = 14
static const int MUON_ANTINEUTRINO = -14
static const int POSITRON = -11
static const int ELECTRON = 11
static const int ELECTRON_NEUTRINO = 12
static const int ELECTRON_ANTINEUTRINO = -12
static const int UP = 2
static const int ANTIUP = -2
static const int DOWN = 1
static const int ANTIDOWN = -1
static const int GLUON = 21
static const int CHARM = 4
static const int TOP = 6
static const int STRANGE = 3
static const int BOTTOM = 5
static const int OTHER = 0

Private Member Functions

void recursiveSetPosition (HepMC::GenParticle *p, HepMC::FourVector pos)

Private Attributes

HepMC::GenParticle * m_particle
std::vector< TauolaParticle * > m_mothers
std::vector< TauolaParticle * > m_daughters
std::vector< TauolaParticle * > m_created_particles

Detailed Description

Definition at line 35 of file TauolaHepMCParticle.h.

Constructor & Destructor Documentation

TauolaHepMCParticle (  ) 

General constructor

Definition at line 7 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

TauolaHepMCParticle ( HepMC::GenParticle *  particle  ) 

Constructor which keeps a pointer to the HepMC::GenParticle

Definition at line 42 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

TauolaHepMCParticle ( int  pdg_id,
int  status,
double  mass 
)

Constructor which creates a new HepMC::GenParticle and sets the properties pdg_id, statu and mass.

Definition at line 35 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

Member Function Documentation

void add ( TauolaParticle *  other_particle  )  [inherited]

Add the 4 momentum of another particle to this particle

Definition at line 44 of file TauolaParticle.cxx.

References TauolaParticle::getE(), TauolaParticle::getPx(), TauolaParticle::getPy(), TauolaParticle::getPz(), TauolaParticle::setE(), TauolaParticle::setMass(), TauolaParticle::setPx(), TauolaParticle::setPy(), and TauolaParticle::setPz().

void addDecayToEventRecord (  )  [inherited]

Invokes TAUOLA FORTRAN routine DEKAY retrieving the daughters of decayed tau.

Definition at line 109 of file TauolaParticle.cxx.

References DecayList::addToEnd(), TauolaParticle::boostAlongZ(), DecayList::clear(), TauolaParticle::clone(), Log::Fatal(), TauolaParticle::getE(), TauolaParticle::getP(), DecayList::getParticle(), TauolaParticle::getPdgID(), TauolaParticle::getPx(), TauolaParticle::getPy(), TauolaParticle::getPz(), TauolaParticle::getSign(), TauolaParticle::hasDaughters(), Tauolapp::TauolaWriteDecayToEventRecord(), and TauolaParticle::Z_AXIS.

void boostAlongZ ( double  boost_pz,
double  boost_e 
) [inherited]

Do a Lorenz transformation along the Z axis.

Boost this vector along the Z direction. Assume no momentum components in the X or Y directions.

Definition at line 292 of file TauolaParticle.cxx.

References TauolaParticle::getE(), TauolaParticle::getPz(), TauolaParticle::setE(), and TauolaParticle::setPz().

void boostDaughtersToRestFrame ( TauolaParticle *  boost  )  [inherited]

Transform the four momentum of all the daughters recursively into the frame of the "particle" TauolaParticle.

Definition at line 215 of file TauolaParticle.cxx.

References TauolaParticle::getDaughters(), and TauolaParticle::hasDaughters().

void boostFromRestFrame ( TauolaParticle *  boost  )  [inherited]

Transform this particles four momentum from the rest frame of the paramter TauolaParticle, back into the lab frame.

Definition at line 250 of file TauolaParticle.cxx.

References TauolaParticle::boostAlongZ(), TauolaParticle::getE(), TauolaParticle::getP(), TauolaParticle::getRotationAngle(), TauolaParticle::rotate(), TauolaParticle::X_AXIS, and TauolaParticle::Y_AXIS.

void boostToRestFrame ( TauolaParticle *  boost  )  [inherited]

Transform this particles four momentum from the lab frome into the rest frame of the paramter TauolaParticle.

Definition at line 234 of file TauolaParticle.cxx.

References TauolaParticle::boostAlongZ(), TauolaParticle::getE(), TauolaParticle::getP(), TauolaParticle::getRotationAngle(), TauolaParticle::rotate(), TauolaParticle::X_AXIS, and TauolaParticle::Y_AXIS.

void checkMomentumConservation (  )  [virtual]

Check that the 4 momentum in conserved at the vertices producing and ending this particle

Reimplemented from TauolaParticle.

Definition at line 191 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle, Log::RedirectOutput(), and Log::RevertOutput().

TauolaParticle * clone (  )  [inherited]

Create a new particle with the same properties as this one. Mothers and daughters will not be linked.

Definition at line 21 of file TauolaParticle.cxx.

References TauolaParticle::createNewParticle(), TauolaParticle::getE(), TauolaParticle::getMass(), TauolaParticle::getPdgID(), TauolaParticle::getPx(), TauolaParticle::getPy(), TauolaParticle::getPz(), and TauolaParticle::getStatus().

TauolaHepMCParticle * createNewParticle ( int  pdg_id,
int  status,
double  mass,
double  px,
double  py,
double  pz,
double  e 
) [virtual]

Create a new particle of type TauolaHepMCParticle, with the given properties. The new particle bares no relations to this particle, but it provides a way of creating a instance of this derived class. eg. createNewParticle() is used inside filhep_() so that a TauolaHepMCParticle can be created without the method having explicit knowledge of the TauolaHepMCParticle class

Implements TauolaParticle.

Definition at line 296 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::getHepMC(), TauolaHepMCParticle::m_created_particles, and TauolaHepMCParticle::TauolaHepMCParticle().

void decay (  )  [inherited]

Decay the particle. This calls the decay methods in the interface to (FORTRAN) tauola.

Definition at line 103 of file TauolaParticle.cxx.

References TauolaParticle::getSign(), TauolaParticle::m_pol_n, TauolaParticle::m_pol_x, TauolaParticle::m_pol_y, TauolaParticle::m_pol_z, and Tauolapp::TauolaDecay().

void decayEndgame (  )  [virtual]

Overriding of TauolaParticle decayEndgame method. Converts the momentum and length units and sets the vector (X,T) position

Reimplemented from TauolaParticle.

Definition at line 255 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle, and TauolaHepMCParticle::recursiveSetPosition().

TauolaParticle * findLastSelf (  )  [inherited]

Traverse the event structure and find the final version of this particle which does not have a particle of it's own type as it's daughter. eg. Generally the final stable copy

Definition at line 78 of file TauolaParticle.cxx.

References TauolaParticle::getDaughters(), and TauolaParticle::getPdgID().

std::vector< TauolaParticle * > findProductionMothers (  )  [inherited]

Traverse the event structure and find the first set of mothers which are not of the same type as this particle.

Definition at line 91 of file TauolaParticle.cxx.

References TauolaParticle::getMothers(), and TauolaParticle::getPdgID().

double getAngle ( TauolaParticle *  other_particle  )  [inherited]

Get the angle between this particle and another particle

Definition at line 29 of file TauolaParticle.cxx.

References TauolaParticle::getPx(), TauolaParticle::getPy(), and TauolaParticle::getPz().

int getBarcode (  )  [virtual]

Get the barcode of this particle

Implements TauolaParticle.

Definition at line 250 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

std::vector< TauolaParticle * > getDaughters (  )  [virtual]

Returns the daughters of this particle via a vector of TauolaParticle

Implements TauolaParticle.

Definition at line 175 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_daughters, TauolaHepMCParticle::m_particle, and TauolaHepMCParticle::TauolaHepMCParticle().

double getE (  )  [virtual]

Returns the energy component of the four vector

Implements TauolaParticle.

Definition at line 332 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

HepMC::GenParticle * getHepMC (  ) 

Returns the HepMC::GenParticle

Definition at line 46 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

double getMass (  )  [inherited]

Get the invariant mass from the four momentum

Reimplemented in TauolaHEPEVTParticle.

Definition at line 329 of file TauolaParticle.cxx.

References TauolaParticle::getE(), and TauolaParticle::getP().

std::vector< TauolaParticle * > getMothers (  )  [virtual]

Returns the mothers of this particle via a vector of TauolaParticle

Implements TauolaParticle.

Definition at line 159 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_mothers, TauolaHepMCParticle::m_particle, and TauolaHepMCParticle::TauolaHepMCParticle().

double getP ( int  axis  )  [inherited]

Get momentum component in the direction of "axis" (x,y,z)

Definition at line 343 of file TauolaParticle.cxx.

References TauolaParticle::getPx(), TauolaParticle::getPy(), TauolaParticle::getPz(), TauolaParticle::X_AXIS, TauolaParticle::Y_AXIS, and TauolaParticle::Z_AXIS.

double getP (  )  [inherited]

Get scalar momentum

Definition at line 339 of file TauolaParticle.cxx.

References TauolaParticle::getPx(), TauolaParticle::getPy(), and TauolaParticle::getPz().

int getPdgID (  )  [virtual]

Get the PDG ID code of this particle

Implements TauolaParticle.

Definition at line 242 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

double getPolarimetricX (  )  [inherited]

Get the polarimetric vector of this particle in the direction X. (Only relevant for tau particles).

Definition at line 8 of file TauolaParticle.cxx.

References TauolaParticle::m_pol_x.

double getPolarimetricY (  )  [inherited]

Get the polarimetric vector of this particle in the direction Y. (Only relevant for tau particles).

Definition at line 12 of file TauolaParticle.cxx.

References TauolaParticle::m_pol_y.

double getPolarimetricZ (  )  [inherited]

Get the polarimetric vector of this particle in the direction Z. (Only relevant for tau particles).

Definition at line 16 of file TauolaParticle.cxx.

References TauolaParticle::m_pol_z.

double getPx (  )  [inline, virtual]

Returns the px component of the four vector

Implements TauolaParticle.

Definition at line 320 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

double getPy (  )  [inline, virtual]

Returns the py component of the four vector

Implements TauolaParticle.

Definition at line 324 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

double getPz (  )  [virtual]

Returns the pz component of the four vector

Implements TauolaParticle.

Definition at line 328 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

double getRotationAngle ( int  axis,
int  second_axis = Z_AXIS 
) [inherited]

Returns the angle around the axis "axis" needed to rotate the four momenum is such a way that the non-Z component disappears and Z>0. This is used to rotating the coordinate system into a frame with only a Z component before calling boostAlongZ().

Get the angle needed to rotate the 4 momentum vector so that the x (y) component disapears. (and the Z component is > 0)

if(getP(axis)==0){ if(getPz()>0) return 0; //no rotaion required else return M_PI; }

Definition at line 269 of file TauolaParticle.cxx.

References TauolaParticle::getP().

int getSign (  )  [inherited]

Get whether this particle has the same or opposite sign to the pdg code given to the Tauola object. (Only relevant for tau particles).

Definition at line 62 of file TauolaParticle.cxx.

References Tauola::getDecayingParticle(), TauolaParticle::getPdgID(), TauolaParticle::NA_SIGN, TauolaParticle::OPPOSITE_SIGN, and TauolaParticle::SAME_SIGN.

int getStatus (  )  [virtual]

Get the status of this particle

Implements TauolaParticle.

Definition at line 246 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

bool hasDaughters (  )  [inherited]

Return whether the particle has any chidren

Definition at line 71 of file TauolaParticle.cxx.

References TauolaParticle::getDaughters().

void print (  )  [virtual]

Print some information about this particle to standard output

Implements TauolaParticle.

Definition at line 313 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void recursiveSetPosition ( HepMC::GenParticle *  p,
HepMC::FourVector  pos 
) [private]

Sets the position for whole decay tree starting from given particle

Definition at line 280 of file TauolaHepMCParticle.cxx.

void rotate ( int  axis,
double  theta,
int  second_axis = Z_AXIS 
) [inherited]

rotate this particles 4-momentum by an angle phi from the axisis "axis" towards the axis "second_axis".

Rotation around an axis X or Y

Definition at line 305 of file TauolaParticle.cxx.

References TauolaParticle::getP(), and TauolaParticle::setP().

void setDaughters ( std::vector< TauolaParticle * >  daughters  )  [virtual]

Set the daughters of this particle via a vector of TauolaParticle

Implements TauolaParticle.

Definition at line 118 of file TauolaHepMCParticle.cxx.

References Log::Fatal(), and TauolaHepMCParticle::m_particle.

void setE ( double  e  )  [virtual]

Set the energy component of the four vector

Implements TauolaParticle.

Definition at line 358 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void setMass ( double  mass  )  [virtual]

Set the mass of this particle

Implements TauolaParticle.

Definition at line 233 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void setMothers ( std::vector< TauolaParticle * >  mothers  )  [virtual]

Set the mothers of this particle via a vector of TauolaParticle

Implements TauolaParticle.

Definition at line 74 of file TauolaHepMCParticle.cxx.

References TauolaParticle::DECAYED, Log::Fatal(), TauolaHepMCParticle::getHepMC(), TauolaHepMCParticle::m_particle, and TauolaParticle::STABLE.

void setP ( int  axis,
double  p_component 
) [inherited]

Set momentum component in the direction of "axis" (x,y,z)

Definition at line 356 of file TauolaParticle.cxx.

References TauolaParticle::setPx(), TauolaParticle::setPy(), TauolaParticle::setPz(), TauolaParticle::X_AXIS, TauolaParticle::Y_AXIS, and TauolaParticle::Z_AXIS.

void setPdgID ( int  pdg_id  )  [virtual]

Set the PDG ID code of this particle

Implements TauolaParticle.

Definition at line 229 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void setPx ( double  px  )  [virtual]

Set the px component of the four vector

Implements TauolaParticle.

Definition at line 336 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void setPy ( double  py  )  [virtual]

Set the px component of the four vector

Implements TauolaParticle.

Definition at line 345 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void setPz ( double  pz  )  [virtual]

Set the pz component of the four vector

Implements TauolaParticle.

Definition at line 352 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void setStatus ( int  statu  )  [virtual]

Set the status of this particle

Implements TauolaParticle.

Definition at line 238 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::m_particle.

void subtract ( TauolaParticle *  other_particle  )  [inherited]

Subtract the 4 momentum of another particle from this particle

Definition at line 53 of file TauolaParticle.cxx.

References TauolaParticle::getE(), TauolaParticle::getPx(), TauolaParticle::getPy(), TauolaParticle::getPz(), TauolaParticle::setE(), TauolaParticle::setMass(), TauolaParticle::setPx(), TauolaParticle::setPy(), and TauolaParticle::setPz().

void undecay (  )  [virtual]

Remove the decay branch from the event record and reset the particle status code to stable.

Reimplemented from TauolaParticle.

Definition at line 50 of file TauolaHepMCParticle.cxx.

References TauolaHepMCParticle::getDaughters(), TauolaHepMCParticle::m_daughters, TauolaHepMCParticle::m_particle, and TauolaParticle::STABLE.

Field Documentation

const int ANTIDOWN = -1 [static, inherited]

anti-down quark

Definition at line 142 of file TauolaParticle.h.

const int ANTIUP = -2 [static, inherited]

anti-up quark

Definition at line 136 of file TauolaParticle.h.

const int DECAYED = 2 [static, inherited]

Decayed particle status

Definition at line 55 of file TauolaParticle.h.

const int DOWN = 1 [static, inherited]

down quark

Definition at line 139 of file TauolaParticle.h.

const int ELECTRON = 11 [static, inherited]

e- particle

Definition at line 124 of file TauolaParticle.h.

const int ELECTRON_ANTINEUTRINO = -12 [static, inherited]

e antineutrino particle

Definition at line 130 of file TauolaParticle.h.

const int ELECTRON_NEUTRINO = 12 [static, inherited]

e neutrino particle

Definition at line 127 of file TauolaParticle.h.

const int GAMMA = 22 [static, inherited]

photon

Definition at line 92 of file TauolaParticle.h.

const int HIGGS = 25 [static, inherited]

H particle

Definition at line 73 of file TauolaParticle.h.

const int HIGGS_A = 36 [static, inherited]

A0 particle

Definition at line 76 of file TauolaParticle.h.

const int HIGGS_MINUS = -37 [static, inherited]

H- particle

Definition at line 82 of file TauolaParticle.h.

const int HIGGS_PLUS = 37 [static, inherited]

H+ particle

Definition at line 79 of file TauolaParticle.h.

const int HISTORY = 3 [static, inherited]

History particle status

Definition at line 58 of file TauolaParticle.h.

std::vector<TauolaParticle*> m_created_particles [private]

List to keep track of new particles which have been created from this one, so we can call their destructor later

Definition at line 150 of file TauolaHepMCParticle.h.

std::vector<TauolaParticle*> m_daughters [private]

A list of daughters

Definition at line 146 of file TauolaHepMCParticle.h.

std::vector<TauolaParticle*> m_mothers [private]

A list of mothers

Definition at line 143 of file TauolaHepMCParticle.h.

HepMC::GenParticle* m_particle [private]

A pointer to the HepMC::GenParticle particle

Definition at line 140 of file TauolaHepMCParticle.h.

const int MUON_ANTINEUTRINO = -14 [static, inherited]

muon antineutrino particle

Definition at line 117 of file TauolaParticle.h.

const int MUON_MINUS = 13 [static, inherited]

muon- particle

Definition at line 111 of file TauolaParticle.h.

const int MUON_NEUTRINO = 14 [static, inherited]

muon neutrino particle

Definition at line 114 of file TauolaParticle.h.

const int MUON_PLUS = -13 [static, inherited]

muon+ particle

Definition at line 108 of file TauolaParticle.h.

const int NA_SIGN = 3 [static, inherited]

Sign type is not applicable for this particle (probably it's not a tau).

Definition at line 49 of file TauolaParticle.h.

const int OPPOSITE_SIGN = 2 [static, inherited]

The opposite sign to decaying particle pdg ID code given to Tauola object (only meaningful for taus).

Definition at line 45 of file TauolaParticle.h.

const int OTHER = 0 [static, inherited]

All other particle types

Definition at line 151 of file TauolaParticle.h.

const int POSITRON = -11 [static, inherited]

e+ particle

Definition at line 121 of file TauolaParticle.h.

const int SAME_SIGN = 1 [static, inherited]

The same sign as decaying particle pdg ID code given to Tauola object (only meaningful for taus).

Definition at line 41 of file TauolaParticle.h.

const int STABLE = 1 [static, inherited]

Stable particle status

Definition at line 52 of file TauolaParticle.h.

const int TAU_ANTINEUTRINO = -16 [static, inherited]

tau antineutrino particle

Definition at line 104 of file TauolaParticle.h.

const int TAU_MINUS = 15 [static, inherited]

tau- particle

Definition at line 98 of file TauolaParticle.h.

const int TAU_NEUTRINO = 16 [static, inherited]

tau neutrino particle

Definition at line 101 of file TauolaParticle.h.

const int TAU_PLUS = -15 [static, inherited]

tau+ particle

Definition at line 95 of file TauolaParticle.h.

const int UP = 2 [static, inherited]

up quark

Definition at line 133 of file TauolaParticle.h.

const int W_MINUS = -24 [static, inherited]

W- particle

Definition at line 89 of file TauolaParticle.h.

const int W_PLUS = 24 [static, inherited]

W+ particle

Definition at line 86 of file TauolaParticle.h.

const int X_AXIS = 1 [static, inherited]

X Axis

Definition at line 61 of file TauolaParticle.h.

const int Y_AXIS = 2 [static, inherited]

Y Axis

Definition at line 64 of file TauolaParticle.h.

const int Z0 = 23 [static, inherited]

Z0 particle

Definition at line 70 of file TauolaParticle.h.

const int Z_AXIS = 3 [static, inherited]

Z Axis

Definition at line 67 of file TauolaParticle.h.

The documentation for this class was generated from the following files:
Generated on Sun Oct 20 20:24:16 2013 for C++InterfacetoTauola by  doxygen 1.6.3