[u/mrichter/AliRoot.git] / STEER / AliESDV0MIParams.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * 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;
  //
}
Commit	Line	Data
c1e38247	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16
	17	//-------------------------------------------------------------------------
	18	// Helper -DATA class ESD V0MI vertex class
	19	// contains effective errror parameterization
	20	// Effective parameterization of resolution in DCA and PA as function of radii and momenta
	21	// Mini-max coeficient fPMinFraction... fPMaxFraction...
	22	// as limits for Error parameterization using Covariance matrix
	23	// For detailes : see AliESDV0MI class
	24	//
	25	// Origin: Marian Ivanov marian.ivanov@cern.ch
	26	//-------------------------------------------------------------------------
	27
	28
	29	#include "AliESDV0MIParams.h"
	30
	31
	32	ClassImp(AliESDV0MIParams)
	33
	34
	35	AliESDV0MIParams::AliESDV0MIParams(){
	36	//
	37	// Default constructor
	38	// Consult AliESDV0MI to see actual error parameterization
	39	//
	40
	41	//
	42	// This constants are used in the error parameterization using covariance matrix
	43	// minimal sigma in AP and DCA
	44	fPSigmaOffsetD0 = 0.03; // minimal sigma of error estimate
	45	fPSigmaOffsetAP0 = 0.005; //
	46	//
	47	// Effective parameterization of DCA resolution as function of pt and decay radii
	48	//
	49	fPSigmaMaxDE = 0.5;
	50	fPSigmaOffsetDE = 0.06;
	51	fPSigmaCoefDE = 0.02;
	52	fPSigmaRminDE = 2.7;
	53	//
	54	//
	55	// Effective parameterization of PA resolution as function of pt and decay radii
	56	//
	57	fPSigmaBase0APE = 0.005;
	58	fPSigmaMaxAPE = 0.06;
	59	fPSigmaR0APE = 0.02;
	60	fPSigmaR1APE = 0.1;
	61	fPSigmaP0APE = 0.7*0.4;
	62	fPSigmaP1APE = 0.3*0.4;
	63	//
	64	//
65	// Minimax parameters
66	//
67	fPMinFractionAP0 =0.5;
68	fPMaxFractionAP0 =1.5;
69	fPMinAP0 =0.003;
70	fPMinFractionD0 =0.5;
71	fPMaxFractionD0 =1.5;
72	fPMinD0 =0.05;
73	//
74	}
75
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