16 #ifndef __SOFTGAUSSMOMENTUMCONSTRAINT_H
17 #define __SOFTGAUSSMOMENTUMCONSTRAINT_H
84 #endif // __SOFTGAUSSMOMENTUMCONSTRAINT_H
Abstract base class for constraints of kinematic fits.
Definition: SoftGaussParticleConstraint.h:68
virtual bool secondDerivatives(int i, int j, double *derivatives) const
Second derivatives with respect to the 4-vectors of Fit objects i and j; result false if all derivati...
Definition: SoftGaussMomentumConstraint.cc:89
std::vector< double > derivatives
The derivatives.
Definition: SoftGaussParticleConstraint.h:173
SoftGaussMomentumConstraint(double sigma_, double efact_, double pxfact_, double pyfact_, double pzfact_, double value_=0)
Constructor.
Definition: SoftGaussMomentumConstraint.cc:28
Declares class SoftGaussParticleConstraint.
virtual bool firstDerivatives(int i, double *derivatives) const
First derivatives with respect to the 4-vector of Fit objects i; result false if all derivatives are ...
Definition: SoftGaussMomentumConstraint.cc:81
Abstract base class for particle objects of kinematic fits.
Definition: ParticleFitObject.h:63
virtual ~SoftGaussMomentumConstraint()
Virtual destructor.
Definition: SoftGaussMomentumConstraint.cc:39
Implements a soft constraint with chi^2=((efact*sum(E_i) + pxfact*sum(p_x,i)+pyfact*sum(p_y,i)+pzfact*sum(p_z,i)-value)/sigma)^2.
Definition: SoftGaussMomentumConstraint.h:40
virtual void getDerivatives(int idim, double der[]) const
Get first order derivatives.
Definition: SoftGaussMomentumConstraint.cc:63
virtual double getValue() const
Returns the value of the constraint function.
Definition: SoftGaussMomentumConstraint.cc:44