/usr/include/CLHEP/Vector/BoostZ.icc is in libclhep-dev 2.1.4.1+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// ---------------------------------------------------------------------------
//
// This file is a part of the CLHEP - a Class Library for High Energy Physics.
//
// This is the definitions of the inline member functions of the
// HepBoostZ class
//
#include <cmath>
namespace CLHEP {
// ---------- Constructors and Assignment:
inline HepBoostZ::HepBoostZ() : beta_(0.0), gamma_(1.0) {}
inline HepBoostZ::HepBoostZ(const HepBoostZ & b) :
beta_ (b.beta_),
gamma_(b.gamma_) {}
inline HepBoostZ & HepBoostZ::operator = (const HepBoostZ & b) {
beta_ = b.beta_;
gamma_ = b.gamma_;
return *this;
}
inline HepBoostZ::HepBoostZ(double bbeta) { set(bbeta); }
// - Protected method:
inline HepBoostZ::HepBoostZ( double bbeta, double ggamma ) :
beta_(bbeta), gamma_(ggamma) {}
// ---------- Accessors:
inline double HepBoostZ::beta() const {
return beta_;
}
inline double HepBoostZ::gamma() const {
return gamma_;
}
inline Hep3Vector HepBoostZ::boostVector() const {
return Hep3Vector( 0, 0, beta_ );
}
inline Hep3Vector HepBoostZ::getDirection() const {
return Hep3Vector( 0.0, 0.0, 1.0 );
}
inline double HepBoostZ::xx() const { return 1.0;}
inline double HepBoostZ::xy() const { return 0.0;}
inline double HepBoostZ::xz() const { return 0.0;}
inline double HepBoostZ::xt() const { return 0.0;}
inline double HepBoostZ::yx() const { return 0.0;}
inline double HepBoostZ::yy() const { return 1.0;}
inline double HepBoostZ::yz() const { return 0.0;}
inline double HepBoostZ::yt() const { return 0.0;}
inline double HepBoostZ::zx() const { return 0.0;}
inline double HepBoostZ::zy() const { return 0.0;}
inline double HepBoostZ::zz() const { return gamma();}
inline double HepBoostZ::zt() const { return beta()*gamma();}
inline double HepBoostZ::tx() const { return 0.0;}
inline double HepBoostZ::ty() const { return 0.0;}
inline double HepBoostZ::tz() const { return beta()*gamma();}
inline double HepBoostZ::tt() const { return gamma();}
inline HepLorentzVector HepBoostZ::col1() const {
return HepLorentzVector ( 1, 0, 0, 0 );
}
inline HepLorentzVector HepBoostZ::col2() const {
return HepLorentzVector ( 0, 1, 0, 0 );
}
inline HepLorentzVector HepBoostZ::col3() const {
return HepLorentzVector ( 0, 0, gamma(), beta()*gamma() );
}
inline HepLorentzVector HepBoostZ::col4() const {
return HepLorentzVector ( 0, 0, beta()*gamma(), gamma() );
}
inline HepLorentzVector HepBoostZ::row1() const {
return HepLorentzVector ( col1() );
}
inline HepLorentzVector HepBoostZ::row2() const {
return HepLorentzVector ( col2() );
}
inline HepLorentzVector HepBoostZ::row3() const {
return HepLorentzVector ( col3() );
}
inline HepLorentzVector HepBoostZ::row4() const {
return HepLorentzVector ( col4() );
}
// ---------- Comparisons:
inline int HepBoostZ::compare( const HepBoostZ & b ) const {
if (beta() < b.beta()) {
return -1;
} else if (beta() > b.beta()) {
return 1;
} else {
return 0;
}
}
inline bool HepBoostZ::operator == ( const HepBoostZ & b ) const {
return beta_ == b.beta_;
}
inline bool HepBoostZ::operator != ( const HepBoostZ & b ) const {
return beta_ != b.beta_;
}
inline bool HepBoostZ::operator <= ( const HepBoostZ & b ) const {
return beta_ <= b.beta_;
}
inline bool HepBoostZ::operator >= ( const HepBoostZ & b ) const {
return beta_ >= b.beta_;
}
inline bool HepBoostZ::operator < ( const HepBoostZ & b ) const {
return beta_ < b.beta_;
}
inline bool HepBoostZ::operator > ( const HepBoostZ & b ) const {
return beta_ > b.beta_;
}
inline bool HepBoostZ::isIdentity() const {
return ( beta() == 0 );
}
inline double HepBoostZ::distance2( const HepBoostZ & b ) const {
double d = beta()*gamma() - b.beta()*b.gamma();
return d*d;
}
inline double HepBoostZ::howNear(const HepBoostZ & b) const {
return std::sqrt(distance2(b)); }
inline double HepBoostZ::howNear(const HepBoost & b) const {
return std::sqrt(distance2(b)); }
inline double HepBoostZ::howNear(const HepRotation & r) const {
return std::sqrt(distance2(r)); }
inline double HepBoostZ::howNear(const HepLorentzRotation & lt) const {
return std::sqrt(distance2(lt)); }
inline bool HepBoostZ::isNear(const HepBoostZ & b,
double epsilon) const {
return (distance2(b) <= epsilon*epsilon);
}
inline bool HepBoostZ::isNear(const HepBoost & b,
double epsilon) const {
return (distance2(b) <= epsilon*epsilon);
}
// ---------- Properties:
double HepBoostZ::norm2() const {
register double bg = beta_*gamma_;
return bg*bg;
}
// ---------- Application:
inline HepLorentzVector
HepBoostZ::operator * (const HepLorentzVector & p) const {
double bg = beta_*gamma_;
return HepLorentzVector( p.x(),
p.y(),
gamma_*p.z() + bg*p.t(),
gamma_*p.t() + bg*p.z());
}
HepLorentzVector HepBoostZ::operator() (const HepLorentzVector & w) const {
return operator*(w);
}
// ---------- Operations in the group of 4-Rotations
inline HepBoostZ HepBoostZ::inverse() const {
return HepBoostZ( -beta(), gamma() );
}
inline HepBoostZ & HepBoostZ::invert() {
beta_ = -beta_;
return *this;
}
inline HepBoostZ inverseOf ( const HepBoostZ & b ) {
return HepBoostZ( -b.beta(), b.gamma());
}
// ---------- Tolerance:
inline double HepBoostZ::getTolerance() {
return Hep4RotationInterface::tolerance;
}
inline double HepBoostZ::setTolerance(double tol) {
return Hep4RotationInterface::setTolerance(tol);
}
} // namespace CLHEP
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