[u/mrichter/AliRoot.git] / STEER / STEERBase / AliITSPidParams.h

#ifndef ALIITSPIDPARAMS_H
#define ALIITSPIDPARAMS_H
/* Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id: $ */

///////////////////////////////////////////////////////////////////
//                                                               //
// Class to store parameters of ITS response functions           //
// Origin: F.Prino, Torino, prino@to.infn.it                     //
//                                                               //
///////////////////////////////////////////////////////////////////

#include <TFormula.h>
#include <TNamed.h>
#include "AliPID.h"

class AliITSPidParams : public TNamed {

 public:
  AliITSPidParams(Bool_t isMC = kFALSE);
  AliITSPidParams(Char_t * name, Bool_t isMC = kFALSE);
  ~AliITSPidParams();
  
  void InitMC();
  void InitData();
  Double_t GetLandauGausNormPdgCode(Double_t dedx, Int_t pdgCode, Double_t mom, Int_t lay) const;
  Double_t GetLandauGausNorm(Double_t dedx, Int_t partType, Double_t mom, Int_t lay) const;
  
  // electron setters
  void SetSDDElecMPVparams(const Double_t* params){
    for(Int_t ipar=0; ipar<5; ipar++) fSDDElecMPVBetheParams[ipar]=params[ipar];
  }  
  void SetSSDElecMPVparams(const Double_t* params){
    for(Int_t ipar=0; ipar<5; ipar++) fSSDElecMPVBetheParams[ipar]=params[ipar];
  }
  void SetSDDElecLandauWidth(const TFormula* form){
    if(fSDDElecLandauWidth) delete fSDDElecLandauWidth;
    fSDDElecLandauWidth=new TFormula(*form);
  }
  void SetSDDElecGaussWidth(const TFormula* form){
    if(fSDDElecGaussWidth) delete fSDDElecGaussWidth;
    fSDDElecGaussWidth=new TFormula(*form);
  } 
  void SetSSDElecLandauWidth(const TFormula* form){
    if(fSSDElecLandauWidth) delete fSSDElecLandauWidth;
    fSSDElecLandauWidth=new TFormula(*form);
  }
  void SetSSDElecGaussWidth(const TFormula* form){
    if(fSSDElecGaussWidth) delete fSSDElecGaussWidth;
    fSSDElecGaussWidth=new TFormula(*form);
  }

  //Hadron setters
  void SetSDDHadronMPVparams(const Double_t* params){
    for(Int_t ipar=0; ipar<5; ipar++) fSDDHadronMPVBetheParams[ipar]=params[ipar];
  }  
  void SetSSDHadronMPVparams(const Double_t* params){
    for(Int_t ipar=0; ipar<5; ipar++) fSSDHadronMPVBetheParams[ipar]=params[ipar];
  }
  
  //Pion setters
  void SetSDDPionLandauWidth(const TFormula* form){
    if(fSDDPionLandauWidth) delete fSDDPionLandauWidth;
    fSDDPionLandauWidth=new TFormula(*form);
  }
  void SetSDDPionGaussWidth(const TFormula* form){
    if(fSDDPionGaussWidth) delete fSDDPionGaussWidth;
    fSDDPionGaussWidth=new TFormula(*form);
  } 
  void SetSSDPionLandauWidth(const TFormula* form){
    if(fSSDPionLandauWidth) delete fSSDPionLandauWidth;
    fSSDPionLandauWidth=new TFormula(*form);
  }
  void SetSSDPionGaussWidth(const TFormula* form){
    if(fSSDPionGaussWidth) delete fSSDPionGaussWidth;
    fSSDPionGaussWidth=new TFormula(*form);
  }

  // kaon setters
  void SetSDDKaonLandauWidth(const TFormula* form){
    if(fSDDKaonLandauWidth) delete fSDDKaonLandauWidth;
    fSDDKaonLandauWidth=new TFormula(*form);
  }
  void SetSDDKaonGaussWidth(const TFormula* form){
    if(fSDDKaonGaussWidth) delete fSDDKaonGaussWidth;
    fSDDKaonGaussWidth=new TFormula(*form);
  }
  void SetSSDKaonLandauWidth(const TFormula* form){
    if(fSSDKaonLandauWidth) delete fSSDKaonLandauWidth;
    fSSDKaonLandauWidth=new TFormula(*form);
  }
  void SetSSDKaonGaussWidth(const TFormula* form){
    if(fSSDKaonGaussWidth) delete fSSDKaonGaussWidth;
    fSSDKaonGaussWidth=new TFormula(*form);
  }

  // proton setters
  void SetSDDProtLandauWidth(const TFormula* form){
    if(fSDDProtLandauWidth) delete fSDDProtLandauWidth;
    fSDDProtLandauWidth=new TFormula(*form);
  }
  void SetSDDProtGaussWidth(const TFormula* form){
    if(fSDDProtGaussWidth) delete fSDDProtGaussWidth;
    fSDDProtGaussWidth=new TFormula(*form);
  }
  void SetSSDProtLandauWidth(const TFormula* form){
    if(fSSDProtLandauWidth) delete fSSDProtLandauWidth;
    fSSDProtLandauWidth=new TFormula(*form);
  }
  void SetSSDProtGaussWidth(const TFormula* form){
    if(fSSDProtGaussWidth) delete fSSDProtGaussWidth;
    fSSDProtGaussWidth=new TFormula(*form);
  }

  // electron getters
  Double_t GetSDDElecMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kElectron);
    return BetheBloch(mom,mass,fSDDElecMPVBetheParams);
  }
  Double_t GetSDDElecLandauWidth(Double_t mom) const {
    return fSDDElecLandauWidth->Eval(mom);
  }
  Double_t GetSDDElecGaussWidth(Double_t mom) const {
    return fSDDElecGaussWidth->Eval(mom);
  }
  Double_t GetSSDElecMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kElectron);
    return BetheBloch(mom,mass,fSSDElecMPVBetheParams);
  }
  Double_t GetSSDElecLandauWidth(Double_t mom) const {
    return fSSDElecLandauWidth->Eval(mom);
  }
  Double_t GetSSDElecGaussWidth(Double_t mom) const {
    return fSSDElecGaussWidth->Eval(mom);
  }

  // pion getters
  Double_t GetSDDPionMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kPion);
    return BetheBloch(mom,mass,fSDDHadronMPVBetheParams);
  }
  Double_t GetSDDPionLandauWidth(Double_t mom) const {
    return fSDDPionLandauWidth->Eval(mom);
  }
  Double_t GetSDDPionGaussWidth(Double_t mom) const {
    return fSDDPionGaussWidth->Eval(mom);
  }
  Double_t GetSSDPionMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kPion);
    return BetheBloch(mom,mass,fSSDHadronMPVBetheParams);
  }
  Double_t GetSSDPionLandauWidth(Double_t mom) const {
    return fSSDPionLandauWidth->Eval(mom);
  }
  Double_t GetSSDPionGaussWidth(Double_t mom) const {
    return fSSDPionGaussWidth->Eval(mom);
  }

  // kaon getters
  Double_t GetSDDKaonMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kKaon);
    return BetheBloch(mom,mass,fSDDHadronMPVBetheParams);
  }
  Double_t GetSDDKaonLandauWidth(Double_t mom) const {
    Double_t xlw = 0.3;
    Double_t xup = 0.4;
    if (mom > xlw) return fSDDKaonLandauWidth->Eval(mom);
    else {
      Double_t ylw =fSDDKaonLandauWidth->Eval(xlw);
      Double_t yup =fSDDKaonLandauWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
   }
  }
  Double_t GetSDDKaonGaussWidth(Double_t mom) const {
    Double_t xlw = 0.3;
    Double_t xup = 0.4;
    if (mom > xlw) return fSDDKaonGaussWidth->Eval(mom);
    else {
      Double_t ylw =fSDDKaonGaussWidth->Eval(xlw);
      Double_t yup =fSDDKaonGaussWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
    }
  }
  Double_t GetSSDKaonMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kKaon);
    return BetheBloch(mom,mass,fSSDHadronMPVBetheParams);
  }
  Double_t GetSSDKaonLandauWidth(Double_t mom) const {
    Double_t xlw = 0.3;
    Double_t xup = 0.4;
    if (mom > xlw) return fSSDKaonLandauWidth->Eval(mom);
    else {
      Double_t ylw =fSSDKaonLandauWidth->Eval(xlw);
      Double_t yup =fSSDKaonLandauWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
    }
  }
  Double_t GetSSDKaonGaussWidth(Double_t mom) const {
    Double_t xlw = 0.3;
    Double_t xup = 0.4;
    if (mom > xlw) return fSSDKaonGaussWidth->Eval(mom);
    else {
      Double_t ylw =fSSDKaonGaussWidth->Eval(xlw);
      Double_t yup =fSSDKaonGaussWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
    }
  }

  // proton getters
  Double_t GetSDDProtMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kProton);
    return BetheBloch(mom,mass,fSDDHadronMPVBetheParams);
  }
  Double_t GetSDDProtLandauWidth(Double_t mom) const {
    Double_t xlw = 0.35;
    Double_t xup = 0.45;
    if (mom > xlw) return fSDDProtLandauWidth->Eval(mom);
    else {
      Double_t ylw =fSDDProtLandauWidth->Eval(xlw);
      Double_t yup =fSDDProtLandauWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
   }
  }
  Double_t GetSDDProtGaussWidth(Double_t mom) const {
    Double_t xlw = 0.35;
    Double_t xup = 0.45;
    if (mom > xlw) return fSDDProtGaussWidth->Eval(mom);
    else {
      Double_t ylw =fSDDProtGaussWidth->Eval(xlw);
      Double_t yup =fSDDProtGaussWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
   }
  }
  Double_t GetSSDProtMPV(Double_t mom) const {
    Double_t mass = AliPID::ParticleMass(AliPID::kProton);
    return BetheBloch(mom,mass,fSSDHadronMPVBetheParams);
  }
  Double_t GetSSDProtLandauWidth(Double_t mom) const {
    Double_t xlw = 0.35;
    Double_t xup = 0.45;
    if (mom > xlw) return fSSDProtLandauWidth->Eval(mom);
    else {
      Double_t ylw =fSSDProtLandauWidth->Eval(xlw);
      Double_t yup =fSSDProtLandauWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
   }
  }
  Double_t GetSSDProtGaussWidth(Double_t mom) const {
    Double_t xlw = 0.35;
    Double_t xup = 0.45;
    if (mom > xlw) return fSSDProtGaussWidth->Eval(mom);
    else {
      Double_t ylw =fSSDProtGaussWidth->Eval(xlw);
      Double_t yup =fSSDProtGaussWidth->Eval(xup);
      return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
   }
  }

 private:
  
  AliITSPidParams(const AliITSPidParams& rec);
  AliITSPidParams& operator=(const AliITSPidParams &source);

  Double_t BetheBloch(Double_t mom, Double_t mass, const Double_t* p) const;
  Double_t ExtrapolateWidth(Double_t mom, Double_t x1, Double_t y1, Double_t x2, Double_t y2) const;
  
  // Electron parameterizations
  Double_t fSDDElecMPVBetheParams[5];         // Electron bethe block parameters in SDD
  Double_t fSSDElecMPVBetheParams[5];         // Electron bethe block parameters in SSD
 
  TFormula* fSDDElecLandauWidth; // Electron dE/dx Landau width vs. p in SDD
  TFormula* fSDDElecGaussWidth;  // Electron dE/dx Gaussian width vs. p in SDD

  TFormula* fSSDElecLandauWidth; // Electron dE/dx Landau width vs. p in SSD
  TFormula* fSSDElecGaussWidth;  // Electron dE/dx Gaussian width vs. p in SSD
  
  // Hadron parameterizations
  Double_t fSDDHadronMPVBetheParams[5];         // hadrons bethe block parameters in SDD
  Double_t fSSDHadronMPVBetheParams[5];         // hadrons bethe block parameters in SSD
 
  TFormula* fSDDPionLandauWidth; // pion dE/dx Landau width vs. p in SDD
  TFormula* fSDDPionGaussWidth;  // pion dE/dx Gaussian width vs. p in SDD

  TFormula* fSSDPionLandauWidth; // pion dE/dx Landau width vs. p in SSD
  TFormula* fSSDPionGaussWidth;  // pion dE/dx Gaussian width vs. p in SSD

  TFormula* fSDDKaonLandauWidth; // kaon dE/dx Landau width vs. p in SDD
  TFormula* fSDDKaonGaussWidth;  // kaon dE/dx Gaussian width vs. p in SDD

  TFormula* fSSDKaonLandauWidth; // kaon dE/dx Landau width vs. p in SSD
  TFormula* fSSDKaonGaussWidth;  // kaon dE/dx Gaussian width vs. p in SSD

  TFormula* fSDDProtLandauWidth; // Proton dE/dx Landau width vs. p in SDD
  TFormula* fSDDProtGaussWidth;  // Proton dE/dx Gaussian width vs. p in SDD

  TFormula* fSSDProtLandauWidth; // Proton dE/dx Landau width vs. p in SSD
  TFormula* fSSDProtGaussWidth;  // Proton dE/dx Gaussian width vs. p in SSD


  ClassDef(AliITSPidParams,2);
};
#endif
Commit	Line	Data
	1	#ifndef ALIITSPIDPARAMS_H
	2	#define ALIITSPIDPARAMS_H
	3	/* Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
	4	* See cxx source for full Copyright notice */
	5
	6	/* $Id: $ */
	7
	8	///////////////////////////////////////////////////////////////////
	9	// //
	10	// Class to store parameters of ITS response functions //
	11	// Origin: F.Prino, Torino, prino@to.infn.it //
	12	// //
	13	///////////////////////////////////////////////////////////////////
	14
	15	#include <TFormula.h>
	16	#include <TNamed.h>
	17	#include "AliPID.h"
	18
	19	class AliITSPidParams : public TNamed {
	20
	21	public:
	22	AliITSPidParams(Bool_t isMC = kFALSE);
	23	AliITSPidParams(Char_t * name, Bool_t isMC = kFALSE);
	24	~AliITSPidParams();
	25
	26	void InitMC();
	27	void InitData();
	28	Double_t GetLandauGausNormPdgCode(Double_t dedx, Int_t pdgCode, Double_t mom, Int_t lay) const;
	29	Double_t GetLandauGausNorm(Double_t dedx, Int_t partType, Double_t mom, Int_t lay) const;
	30
	31	// electron setters
	32	void SetSDDElecMPVparams(const Double_t* params){
	33	for(Int_t ipar=0; ipar<5; ipar++) fSDDElecMPVBetheParams[ipar]=params[ipar];
	34	}
	35	void SetSSDElecMPVparams(const Double_t* params){
	36	for(Int_t ipar=0; ipar<5; ipar++) fSSDElecMPVBetheParams[ipar]=params[ipar];
	37	}
	38	void SetSDDElecLandauWidth(const TFormula* form){
	39	if(fSDDElecLandauWidth) delete fSDDElecLandauWidth;
	40	fSDDElecLandauWidth=new TFormula(*form);
	41	}
	42	void SetSDDElecGaussWidth(const TFormula* form){
	43	if(fSDDElecGaussWidth) delete fSDDElecGaussWidth;
	44	fSDDElecGaussWidth=new TFormula(*form);
	45	}
	46	void SetSSDElecLandauWidth(const TFormula* form){
	47	if(fSSDElecLandauWidth) delete fSSDElecLandauWidth;
	48	fSSDElecLandauWidth=new TFormula(*form);
	49	}
	50	void SetSSDElecGaussWidth(const TFormula* form){
	51	if(fSSDElecGaussWidth) delete fSSDElecGaussWidth;
	52	fSSDElecGaussWidth=new TFormula(*form);
	53	}
	54
	55	//Hadron setters
	56	void SetSDDHadronMPVparams(const Double_t* params){
	57	for(Int_t ipar=0; ipar<5; ipar++) fSDDHadronMPVBetheParams[ipar]=params[ipar];
	58	}
	59	void SetSSDHadronMPVparams(const Double_t* params){
	60	for(Int_t ipar=0; ipar<5; ipar++) fSSDHadronMPVBetheParams[ipar]=params[ipar];
	61	}
	62
	63	//Pion setters
	64	void SetSDDPionLandauWidth(const TFormula* form){
	65	if(fSDDPionLandauWidth) delete fSDDPionLandauWidth;
	66	fSDDPionLandauWidth=new TFormula(*form);
	67	}
	68	void SetSDDPionGaussWidth(const TFormula* form){
	69	if(fSDDPionGaussWidth) delete fSDDPionGaussWidth;
	70	fSDDPionGaussWidth=new TFormula(*form);
	71	}
	72	void SetSSDPionLandauWidth(const TFormula* form){
	73	if(fSSDPionLandauWidth) delete fSSDPionLandauWidth;
	74	fSSDPionLandauWidth=new TFormula(*form);
	75	}
	76	void SetSSDPionGaussWidth(const TFormula* form){
	77	if(fSSDPionGaussWidth) delete fSSDPionGaussWidth;
	78	fSSDPionGaussWidth=new TFormula(*form);
	79	}
	80
	81	// kaon setters
	82	void SetSDDKaonLandauWidth(const TFormula* form){
	83	if(fSDDKaonLandauWidth) delete fSDDKaonLandauWidth;
	84	fSDDKaonLandauWidth=new TFormula(*form);
	85	}
	86	void SetSDDKaonGaussWidth(const TFormula* form){
	87	if(fSDDKaonGaussWidth) delete fSDDKaonGaussWidth;
	88	fSDDKaonGaussWidth=new TFormula(*form);
	89	}
	90	void SetSSDKaonLandauWidth(const TFormula* form){
	91	if(fSSDKaonLandauWidth) delete fSSDKaonLandauWidth;
	92	fSSDKaonLandauWidth=new TFormula(*form);
	93	}
	94	void SetSSDKaonGaussWidth(const TFormula* form){
	95	if(fSSDKaonGaussWidth) delete fSSDKaonGaussWidth;
	96	fSSDKaonGaussWidth=new TFormula(*form);
	97	}
	98
	99	// proton setters
	100	void SetSDDProtLandauWidth(const TFormula* form){
	101	if(fSDDProtLandauWidth) delete fSDDProtLandauWidth;
	102	fSDDProtLandauWidth=new TFormula(*form);
	103	}
	104	void SetSDDProtGaussWidth(const TFormula* form){
	105	if(fSDDProtGaussWidth) delete fSDDProtGaussWidth;
	106	fSDDProtGaussWidth=new TFormula(*form);
	107	}
	108	void SetSSDProtLandauWidth(const TFormula* form){
	109	if(fSSDProtLandauWidth) delete fSSDProtLandauWidth;
	110	fSSDProtLandauWidth=new TFormula(*form);
	111	}
	112	void SetSSDProtGaussWidth(const TFormula* form){
	113	if(fSSDProtGaussWidth) delete fSSDProtGaussWidth;
	114	fSSDProtGaussWidth=new TFormula(*form);
	115	}
	116
	117	// electron getters
	118	Double_t GetSDDElecMPV(Double_t mom) const {
	119	Double_t mass = AliPID::ParticleMass(AliPID::kElectron);
	120	return BetheBloch(mom,mass,fSDDElecMPVBetheParams);
	121	}
	122	Double_t GetSDDElecLandauWidth(Double_t mom) const {
	123	return fSDDElecLandauWidth->Eval(mom);
	124	}
	125	Double_t GetSDDElecGaussWidth(Double_t mom) const {
	126	return fSDDElecGaussWidth->Eval(mom);
	127	}
	128	Double_t GetSSDElecMPV(Double_t mom) const {
	129	Double_t mass = AliPID::ParticleMass(AliPID::kElectron);
	130	return BetheBloch(mom,mass,fSSDElecMPVBetheParams);
	131	}
	132	Double_t GetSSDElecLandauWidth(Double_t mom) const {
	133	return fSSDElecLandauWidth->Eval(mom);
	134	}
	135	Double_t GetSSDElecGaussWidth(Double_t mom) const {
	136	return fSSDElecGaussWidth->Eval(mom);
	137	}
	138
	139	// pion getters
	140	Double_t GetSDDPionMPV(Double_t mom) const {
	141	Double_t mass = AliPID::ParticleMass(AliPID::kPion);
	142	return BetheBloch(mom,mass,fSDDHadronMPVBetheParams);
	143	}
	144	Double_t GetSDDPionLandauWidth(Double_t mom) const {
	145	return fSDDPionLandauWidth->Eval(mom);
	146	}
	147	Double_t GetSDDPionGaussWidth(Double_t mom) const {
	148	return fSDDPionGaussWidth->Eval(mom);
	149	}
	150	Double_t GetSSDPionMPV(Double_t mom) const {
	151	Double_t mass = AliPID::ParticleMass(AliPID::kPion);
	152	return BetheBloch(mom,mass,fSSDHadronMPVBetheParams);
	153	}
	154	Double_t GetSSDPionLandauWidth(Double_t mom) const {
	155	return fSSDPionLandauWidth->Eval(mom);
	156	}
	157	Double_t GetSSDPionGaussWidth(Double_t mom) const {
	158	return fSSDPionGaussWidth->Eval(mom);
	159	}
	160
	161	// kaon getters
	162	Double_t GetSDDKaonMPV(Double_t mom) const {
	163	Double_t mass = AliPID::ParticleMass(AliPID::kKaon);
	164	return BetheBloch(mom,mass,fSDDHadronMPVBetheParams);
	165	}
	166	Double_t GetSDDKaonLandauWidth(Double_t mom) const {
	167	Double_t xlw = 0.3;
	168	Double_t xup = 0.4;
	169	if (mom > xlw) return fSDDKaonLandauWidth->Eval(mom);
	170	else {
	171	Double_t ylw =fSDDKaonLandauWidth->Eval(xlw);
	172	Double_t yup =fSDDKaonLandauWidth->Eval(xup);
	173	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	174	}
	175	}
	176	Double_t GetSDDKaonGaussWidth(Double_t mom) const {
	177	Double_t xlw = 0.3;
	178	Double_t xup = 0.4;
	179	if (mom > xlw) return fSDDKaonGaussWidth->Eval(mom);
	180	else {
	181	Double_t ylw =fSDDKaonGaussWidth->Eval(xlw);
	182	Double_t yup =fSDDKaonGaussWidth->Eval(xup);
	183	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	184	}
	185	}
	186	Double_t GetSSDKaonMPV(Double_t mom) const {
	187	Double_t mass = AliPID::ParticleMass(AliPID::kKaon);
	188	return BetheBloch(mom,mass,fSSDHadronMPVBetheParams);
	189	}
	190	Double_t GetSSDKaonLandauWidth(Double_t mom) const {
	191	Double_t xlw = 0.3;
	192	Double_t xup = 0.4;
	193	if (mom > xlw) return fSSDKaonLandauWidth->Eval(mom);
	194	else {
	195	Double_t ylw =fSSDKaonLandauWidth->Eval(xlw);
	196	Double_t yup =fSSDKaonLandauWidth->Eval(xup);
	197	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	198	}
	199	}
	200	Double_t GetSSDKaonGaussWidth(Double_t mom) const {
	201	Double_t xlw = 0.3;
	202	Double_t xup = 0.4;
	203	if (mom > xlw) return fSSDKaonGaussWidth->Eval(mom);
	204	else {
	205	Double_t ylw =fSSDKaonGaussWidth->Eval(xlw);
	206	Double_t yup =fSSDKaonGaussWidth->Eval(xup);
	207	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	208	}
	209	}
	210
	211	// proton getters
	212	Double_t GetSDDProtMPV(Double_t mom) const {
	213	Double_t mass = AliPID::ParticleMass(AliPID::kProton);
	214	return BetheBloch(mom,mass,fSDDHadronMPVBetheParams);
	215	}
	216	Double_t GetSDDProtLandauWidth(Double_t mom) const {
	217	Double_t xlw = 0.35;
	218	Double_t xup = 0.45;
	219	if (mom > xlw) return fSDDProtLandauWidth->Eval(mom);
	220	else {
	221	Double_t ylw =fSDDProtLandauWidth->Eval(xlw);
	222	Double_t yup =fSDDProtLandauWidth->Eval(xup);
	223	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	224	}
	225	}
	226	Double_t GetSDDProtGaussWidth(Double_t mom) const {
	227	Double_t xlw = 0.35;
	228	Double_t xup = 0.45;
	229	if (mom > xlw) return fSDDProtGaussWidth->Eval(mom);
	230	else {
	231	Double_t ylw =fSDDProtGaussWidth->Eval(xlw);
	232	Double_t yup =fSDDProtGaussWidth->Eval(xup);
	233	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	234	}
	235	}
	236	Double_t GetSSDProtMPV(Double_t mom) const {
	237	Double_t mass = AliPID::ParticleMass(AliPID::kProton);
	238	return BetheBloch(mom,mass,fSSDHadronMPVBetheParams);
	239	}
	240	Double_t GetSSDProtLandauWidth(Double_t mom) const {
	241	Double_t xlw = 0.35;
	242	Double_t xup = 0.45;
	243	if (mom > xlw) return fSSDProtLandauWidth->Eval(mom);
	244	else {
	245	Double_t ylw =fSSDProtLandauWidth->Eval(xlw);
	246	Double_t yup =fSSDProtLandauWidth->Eval(xup);
	247	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	248	}
	249	}
	250	Double_t GetSSDProtGaussWidth(Double_t mom) const {
	251	Double_t xlw = 0.35;
	252	Double_t xup = 0.45;
	253	if (mom > xlw) return fSSDProtGaussWidth->Eval(mom);
	254	else {
	255	Double_t ylw =fSSDProtGaussWidth->Eval(xlw);
	256	Double_t yup =fSSDProtGaussWidth->Eval(xup);
	257	return ExtrapolateWidth(mom,xlw,ylw,xup,yup);
	258	}
	259	}
	260
	261	private:
	262
	263	AliITSPidParams(const AliITSPidParams& rec);
	264	AliITSPidParams& operator=(const AliITSPidParams &source);
	265
	266	Double_t BetheBloch(Double_t mom, Double_t mass, const Double_t* p) const;
	267	Double_t ExtrapolateWidth(Double_t mom, Double_t x1, Double_t y1, Double_t x2, Double_t y2) const;
	268
	269	// Electron parameterizations
	270	Double_t fSDDElecMPVBetheParams[5]; // Electron bethe block parameters in SDD
	271	Double_t fSSDElecMPVBetheParams[5]; // Electron bethe block parameters in SSD
	272
	273	TFormula* fSDDElecLandauWidth; // Electron dE/dx Landau width vs. p in SDD
	274	TFormula* fSDDElecGaussWidth; // Electron dE/dx Gaussian width vs. p in SDD
	275
	276	TFormula* fSSDElecLandauWidth; // Electron dE/dx Landau width vs. p in SSD
	277	TFormula* fSSDElecGaussWidth; // Electron dE/dx Gaussian width vs. p in SSD
	278
	279	// Hadron parameterizations
	280	Double_t fSDDHadronMPVBetheParams[5]; // hadrons bethe block parameters in SDD
	281	Double_t fSSDHadronMPVBetheParams[5]; // hadrons bethe block parameters in SSD
	282
	283	TFormula* fSDDPionLandauWidth; // pion dE/dx Landau width vs. p in SDD
	284	TFormula* fSDDPionGaussWidth; // pion dE/dx Gaussian width vs. p in SDD
	285
	286	TFormula* fSSDPionLandauWidth; // pion dE/dx Landau width vs. p in SSD
	287	TFormula* fSSDPionGaussWidth; // pion dE/dx Gaussian width vs. p in SSD
	288
	289	TFormula* fSDDKaonLandauWidth; // kaon dE/dx Landau width vs. p in SDD
	290	TFormula* fSDDKaonGaussWidth; // kaon dE/dx Gaussian width vs. p in SDD
	291
	292	TFormula* fSSDKaonLandauWidth; // kaon dE/dx Landau width vs. p in SSD
	293	TFormula* fSSDKaonGaussWidth; // kaon dE/dx Gaussian width vs. p in SSD
	294
	295	TFormula* fSDDProtLandauWidth; // Proton dE/dx Landau width vs. p in SDD
	296	TFormula* fSDDProtGaussWidth; // Proton dE/dx Gaussian width vs. p in SDD
	297
	298	TFormula* fSSDProtLandauWidth; // Proton dE/dx Landau width vs. p in SSD
	299	TFormula* fSSDProtGaussWidth; // Proton dE/dx Gaussian width vs. p in SSD
	300
	301
	302
	303	ClassDef(AliITSPidParams,2);
	304	};
	305	#endif