/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/


//-------------------------------------------------------------------------
//            Helper -DATA  class ESD V0MI vertex class
//            contains effective errror parameterization 
//            Effective parameterization of resolution in DCA and PA  as function of radii and momenta
//            Mini-max coeficient    fPMinFraction... fPMaxFraction...
//                                   as limits for Error parameterization using Covariance matrix             
//            For detailes : see  AliESDV0MI class   
//             
//    Origin: Marian Ivanov marian.ivanov@cern.ch
//-------------------------------------------------------------------------


#include "AliESDV0MIParams.h"


ClassImp(AliESDV0MIParams)


AliESDV0MIParams::AliESDV0MIParams(){
  //
  // Default constructor
  // Consult AliESDV0MI to see actual error parameterization 
  //

  //
  // This constants are used in the error parameterization using covariance matrix
  // minimal sigma in AP and DCA 
  fPSigmaOffsetD0 = 0.03;      // minimal sigma of error estimate
  fPSigmaOffsetAP0 = 0.005;    // 
  //
  // Effective parameterization of DCA resolution as function of pt and decay radii
  //
  fPSigmaMaxDE    = 0.5;
  fPSigmaOffsetDE = 0.06;
  fPSigmaCoefDE   = 0.02;
  fPSigmaRminDE   = 2.7;
  //
  //
  // Effective parameterization of PA resolution as function of pt and decay radii
  //
  fPSigmaBase0APE  = 0.005;
  fPSigmaMaxAPE    = 0.06;
  fPSigmaR0APE     = 0.02;
  fPSigmaR1APE     = 0.1; 
  fPSigmaP0APE     = 0.7*0.4;
  fPSigmaP1APE     = 0.3*0.4;
  //
  //
  // Minimax parameters
  //
  fPMinFractionAP0 =0.5;
  fPMaxFractionAP0 =1.5;
  fPMinAP0         =0.003;
  fPMinFractionD0 =0.5;
  fPMaxFractionD0 =1.5;
  fPMinD0         =0.05;
  //
}