Belle II Software light-2406-ragdoll
Resonance.h
1/**************************************************************************
2 * basf2 (Belle II Analysis Software Framework) *
3 * Author: The Belle II Collaboration *
4 * External Contributor: Wouter Hulsbergen *
5 * *
6 * See git log for contributors and copyright holders. *
7 * This file is licensed under LGPL-3.0, see LICENSE.md. *
8 **************************************************************************/
9#pragma once
10
11#include <analysis/VertexFitting/TreeFitter/InternalParticle.h>
12namespace TreeFitter {
13 class FitParams;
14 class ConstraintConfiguration;
15
17 class Resonance : public InternalParticle {
18 public:
21 const ParticleBase* mother,
22 const ConstraintConfiguration& config,
23 bool forceFitAll);
24
26 virtual ~Resonance() ;
27
29 ErrCode initMotherlessParticle(FitParams& fitparams) override;
30
32 ErrCode initParticleWithMother(FitParams& fitparams) override;
33
35 virtual int dim() const override { return 4; }
37 virtual int type() const override { return kResonance; }
39 virtual std::string parname(int index) const override;
40
42 virtual int posIndex() const override { return mother()->posIndex(); }
44 virtual int momIndex() const override { return index(); }
46 virtual int tauIndex() const override { return -1; }
48 virtual bool hasPosition() const override { return false; }
49
50 private:
51 };
52
53}
Class to store reconstructed particles.
Definition: Particle.h:75
constraint configuration class
abstract errorocode be aware that the default is success
Definition: ErrCode.h:14
Class to store and manage fitparams (statevector)
Definition: FitParams.h:20
another unnecessary layer of abstraction
base class for all particles
Definition: ParticleBase.h:25
Belle2::Particle * particle() const
get basf2 particle
Definition: ParticleBase.h:92
virtual int posIndex() const
get vertex index (in statevector!)
Definition: ParticleBase.h:122
int index() const
get index
Definition: ParticleBase.h:95
const ParticleBase * mother() const
getMother() / hasMother()
Definition: ParticleBase.h:98
class for resonances as internal particles
Definition: Resonance.h:17
virtual ~Resonance()
destructor
virtual bool hasPosition() const override
does this class have position? NO
Definition: Resonance.h:48
virtual std::string parname(int index) const override
parameter name
Definition: Resonance.cc:41
virtual int tauIndex() const override
get tau (lifetime) index in statevector
Definition: Resonance.h:46
virtual int dim() const override
dimension (4)
Definition: Resonance.h:35
virtual int momIndex() const override
get momentum index in statevector
Definition: Resonance.h:44
virtual int type() const override
particle type
Definition: Resonance.h:37
ErrCode initParticleWithMother(FitParams &fitparams) override
initialise a particle with a mother
Definition: Resonance.cc:29
ErrCode initMotherlessParticle(FitParams &fitparams) override
initialise a motherless particle
Definition: Resonance.cc:20
virtual int posIndex() const override
get position index in statevector x,y,z,tau,px,py,pz
Definition: Resonance.h:42