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EvtIncoherentMixing.hh
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EvtIncoherentMixing.hh
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// $Id: EvtIncoherentMixing.hh,v 1.6 2009-11-25 13:41:59 mwhitehe Exp $
#ifndef EVTINCOHERENTMIXING_HH
#define EVTINCOHERENTMIXING_HH 1
// Include files
#include "EvtGenBase/EvtParticle.hh"
/** @class EvtIncoherentMixing EvtIncoherentMixing.hh EvtGenBase/EvtIncoherentMixing.hh
* Class to contain the parameters of the incoherent B0 and B0S mixing
*
* @author Patrick Robbe
* @date 2003-10-09
*/
class EvtIncoherentMixing {
public:
/// Standard constructor
EvtIncoherentMixing( );
~EvtIncoherentMixing( ) ; ///< Destructor
// activate or desactivate the Bs mixing
static void setB0Mixing() ;
static void unsetB0Mixing() ;
// activate or desactivate the B0 mixing
static void setBsMixing() ;
static void unsetBsMixing() ;
// is mixing activated ?
static bool doB0Mixing() ;
static bool doBsMixing() ;
// set values for the mixing
static void setdGammad( double value ) ;
static void setdeltamd( double value ) ;
static void setdGammas( double value ) ;
static void setdeltams( double value ) ;
// get parameters for mixing
static double getdGammad() ;
static double getdeltamd() ;
static double getdGammas() ;
static double getdeltams() ;
// Functions to obtain time and type of the mixing ( 1 mix, 0 unmix )
static void incoherentB0Mix( const EvtId id, double &t, int &mix ) ;
static void incoherentBsMix( const EvtId id, double &t, int &mix ) ;
// Functions to check if a B has mixed (comes from a B)
static bool isB0Mixed( EvtParticle * ) ;
static bool isBsMixed( EvtParticle * ) ;
// Functions for CP models
// returns for particle p the decay time t , the flavour of the tag
// side (B0, anti-B0, B_s0, anti-B_s0). The flavour of p can flip
// with probability probB
static void OtherB( EvtParticle * p , double & t , EvtId & otherb ,
double probB ) ;
static void OtherB( EvtParticle * p , double & t , EvtId & otherb ) ;
static bool flipIsEnabled() ;
static void enableFlip() ;
static void disableFlip() ;
protected:
private:
static bool _doB0Mixing ;
static bool _doBsMixing ;
static double _dGammad ;
static double _deltamd ;
static double _dGammas ;
static double _deltams ;
static bool _enableFlip ;
};
#endif // EVTGENBASE_EVTINCOHERENTMIXING_HH

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