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// $Id: CompositeParticle.cc,v 1.4 2008/07/16 09:32:05 bendavid Exp $
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#include "MitAna/DataTree/interface/CompositeParticle.h"
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ClassImp(mithep::CompositeParticle)
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using namespace mithep;
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//--------------------------------------------------------------------------------------------------
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Double_t CompositeParticle::Charge() const
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{
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// Return sum of charge of daughter particles.
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Double_t charge = 0;
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for (UInt_t i=0; i<NDaughters(); ++i)
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charge += Daughter(i)->Charge();
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return charge;
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t CompositeParticle::HasDaughter(const Particle* p) const
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{
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// Return true if given particle is among daughters.
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if(!p) return kFALSE;
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if (!NDaughters())
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return kFALSE;
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for (UInt_t i=0; i<NDaughters(); ++i)
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if (Daughter(i)==p)
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return kTRUE;
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return kFALSE;
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t CompositeParticle::HasCommonDaughter(const CompositeParticle *p) const
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{
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// Return true if a common daughter exists.
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if(!p) return kFALSE;
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for (UInt_t i=0; i<p->NDaughters(); ++i)
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if (HasDaughter(p->Daughter(i)))
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return kTRUE;
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return kFALSE;
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}
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//--------------------------------------------------------------------------------------------------
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Bool_t CompositeParticle::HasSameDaughters(const CompositeParticle* p) const
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{
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// Return true if daughters are the same.
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if(!p) return kFALSE;
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if (NDaughters()!= p->NDaughters())
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return kFALSE;
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for (UInt_t i=0; i<p->NDaughters(); ++i)
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if (!HasDaughter(p->Daughter(i)))
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return kFALSE;
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return kTRUE;
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}
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//--------------------------------------------------------------------------------------------------
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FourVector CompositeParticle::Mom() const
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{
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// Return the vector sum of the momenta of the daughters.
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FourVector mom;
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for (UInt_t i=0; i<NDaughters(); ++i)
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mom += (Daughter(i))->Mom();
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return mom;
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}
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