RooArgusGenBG.h

/*****************************************************************************
 * Project: BaBar detector at the SLAC PEP-II B-factory
 * Package: RooDKDalitz
 *    File: $Id: RooArgusGenBG.rdl,v 1.2 2007/11/08 14:46:17 martinee Exp $
 *  See .cc file
 *****************************************************************************/

#ifndef ROOARGUSGENBG
#define ROOARGUSGENBG

#include "RooAbsPdf.h"
#include "RooAbsReal.h"
#include "RooRealProxy.h"

// class RooRealVar;
// class RooAbsReal;

class RooArgusGenBG : public RooAbsPdf {
  public:
    enum ThresholdType { UpperThreshold, LowerThreshold, BrianLowerThreshold };

    RooArgusGenBG(){};
    RooArgusGenBG(const char *name,
                  const char *title,
                  RooAbsReal &_m,
                  RooAbsReal &_m0,
                  RooAbsReal &_c,
                  ThresholdType _thresholdType = UpperThreshold);

    RooArgusGenBG(const char *name,
                  const char *title,
                  RooAbsReal &_m,
                  RooAbsReal &_m0,
                  RooAbsReal &_c,
                  RooAbsReal &_p,
                  ThresholdType _thresholdType = UpperThreshold);

    RooArgusGenBG(const char *name,
                  const char *title,
                  RooAbsReal &_m,
                  RooAbsReal &_m0,
                  RooAbsReal &_c,
                  RooAbsReal &_c2,
                  RooAbsReal &_p,
                  ThresholdType _thresholdType = BrianLowerThreshold);

    RooArgusGenBG(const RooArgusGenBG &other, const char *name = 0);
    virtual TObject *clone(const char *newname) const { return new RooArgusGenBG(*this, newname); }
    virtual ~RooArgusGenBG() = default;

    // Int_t getAnalyticalIntegral(RooArgSet& allVars, RooArgSet& analVars, const char* rangeName=0) const ;
    // Double_t analyticalIntegral(Int_t code, const char* rangeName=0) const ;

  protected:
    RooRealProxy m;
    RooRealProxy m0;
    RooRealProxy c;
    RooRealProxy c2;
    RooRealProxy p;
    ThresholdType thresholdType;

    Double_t evaluate() const;

    // Argus background shape generic PDF (for lower and upper thresholds)
    ClassDef(RooArgusGenBG, 1);
};

#endif