LauConstants.hh

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// Copyright University of Warwick 2005 - 2013.
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

// Authors:
// Thomas Latham
// John Back
// Paul Harrison

#ifndef LAU_CONSTANTS
#define LAU_CONSTANTS

#include "Rtypes.h"
#include "TMath.h"

namespace LauConstants {

                const Double_t mD               = 1.86961;     
                const Double_t mD0              = 1.86484;
                const Double_t mDs              = 1.96830;    
                const Double_t mB               = 5.27926;
                const Double_t mB0              = 5.27958;
                const Double_t mBs0             = 5.36677;
                const Double_t mPi              = 0.13957018; 
                const Double_t mPi0             = 0.1349766;  
                const Double_t mK               = 0.493677; 
                const Double_t mK0              = 0.497614; 
                const Double_t mEta             = 0.547862; 
                const Double_t mEtaPrime        = 0.95778;

                const Double_t mDSq             = mD*mD;
                const Double_t mD0Sq            = mD0*mD0;
                const Double_t mDsSq            = mDs*mDs;
                const Double_t mBSq             = mB*mB;
                const Double_t mB0Sq            = mB0*mB0;
                const Double_t mBs0Sq           = mBs0*mBs0;
                const Double_t mPiSq            = mPi*mPi;
                const Double_t mPi0Sq           = mPi0*mPi0;
                const Double_t mKSq             = mK*mK;
                const Double_t mK0Sq            = mK0*mK0;
                const Double_t mEtaSq           = mEta*mEta;
                const Double_t mEtaPrimeSq      = mEtaPrime*mEtaPrime;

                const Double_t tauB             = 1.638; 
                const Double_t tauB0            = 1.519;  
                const Double_t deltaMd          = 0.510;  
                const Double_t beta             = 21.50*TMath::DegToRad();  
                const Double_t sin2beta         = TMath::Sin(2.0*beta);  

                const Double_t pi               = TMath::Pi();
                const Double_t rootPi           = TMath::Sqrt(TMath::Pi());
                const Double_t twoPi            = 2.0*TMath::Pi();
                const Double_t threePi          = 3.0*TMath::Pi();
                const Double_t sixPi            = 6.0*TMath::Pi();
                const Double_t pim4             = 1.0/TMath::Power(TMath::Pi(), 0.25);
                const Double_t piBy2            = 0.5*TMath::Pi();
                const Double_t rootPiBy2        = TMath::Sqrt(0.5*TMath::Pi());
                const Double_t invPi            = 1.0/TMath::Pi();
                const Double_t root2            = TMath::Sqrt(2.0);
                const Double_t log4             = TMath::Log(4.0);

};

#endif