Belle II Software light-2406-ragdoll
SoftBWMassConstraint.h
1/**************************************************************************
2 * basf2 (Belle II Analysis Software Framework) *
3 * Author: The Belle II Collaboration *
4 * *
5 * Forked from https://github.com/iLCSoft/MarlinKinfit *
6 * *
7 * Further information about the fit engine and the user interface *
8 * provided in MarlinKinfit can be found at *
9 * https://www.desy.de/~blist/kinfit/doc/html/ *
10 * and in the LCNotes LC-TOOL-2009-001 and LC-TOOL-2009-004 available *
11 * from http://www-flc.desy.de/lcnotes/ *
12 * *
13 * See git log for contributors and copyright holders. *
14 * This file is licensed under LGPL-3.0, see LICENSE.md. *
15 **************************************************************************/
16
17#ifdef MARLIN_USE_ROOT
18
19#ifndef __SOFTBWMASSCONSTRAINT_H
20#define __SOFTBWMASSCONSTRAINT_H
21
22#include "analysis/OrcaKinFit/SoftBWParticleConstraint.h"
23
24#include <limits>
25
26namespace Belle2 {
31 namespace OrcaKinFit {
32
33 class ParticleFitObject;
34
35// Class SoftBWMassConstraint:
37
49 class SoftBWMassConstraint : public SoftBWParticleConstraint {
50 public:
51
53 explicit SoftBWMassConstraint(double gamma_,
54 double mass_ = 0.,
55 double massmin_ = -std::numeric_limits<double>::infinity(),
56 double massmax_ = std::numeric_limits<double>::infinity()
57 );
59 virtual ~SoftBWMassConstraint();
60
62 virtual double getValue() const override;
63
66 virtual void getDerivatives(int idim,
67 double der[]
68 ) const override;
69
71 virtual double getMass(int flag = 1
72 );
73
75 virtual void setMass(double mass_
76 );
77
78
79 protected:
80 double mass;
81
82
84 virtual bool secondDerivatives(int i,
85 int j,
86 double* derivatives
87 ) const override;
89 virtual bool firstDerivatives(int i,
90 double* derivatives
91 ) const override;
92 };
93
94 }// end OrcaKinFit namespace
96} // end Belle2 namespace
97
98
99#endif // __SOFTBWMASSCONSTRAINT_H
100
101#endif // MARLIN_USE_ROOT
Abstract base class for different kinds of events.
Definition: ClusterUtils.h:24