An implementation of the neutrino - Oxygen16 cross section. More...

#include <KLVOxygenIBDPXSec.h>

Inheritance diagram for genie::KLVOxygenIBDPXSec:

Public Member Functions
	KLVOxygenIBDPXSec ()

	KLVOxygenIBDPXSec (string config)

virtual	~KLVOxygenIBDPXSec ()

double	XSec (const Interaction *i, KinePhaseSpace_t k) const
	Compute the cross section for the input interaction. More...

double	Integral (const Interaction *i) const

bool	ValidProcess (const Interaction *i) const
	Can this cross section algorithm handle the input process? More...

bool	ValidKinematics (const Interaction *i) const
	Is the input kinematical point a physically allowed one? More...

void	Configure (const Registry &config)

void	Configure (string config)

Public Member Functions inherited from genie::XSecAlgorithmI
virtual	~XSecAlgorithmI ()

Public Member Functions inherited from genie::Algorithm
virtual	~Algorithm ()

virtual void	FindConfig (void)

virtual const Registry &	GetConfig (void) const

Registry *	GetOwnedConfig (void)

virtual const AlgId &	Id (void) const
	Get algorithm ID. More...

virtual AlgStatus_t	GetStatus (void) const
	Get algorithm status. More...

virtual bool	AllowReconfig (void) const

virtual AlgCmp_t	Compare (const Algorithm *alg) const
	Compare with input algorithm. More...

virtual void	SetId (const AlgId &id)
	Set algorithm ID. More...

virtual void	SetId (string name, string config)

const Algorithm *	SubAlg (const RgKey &registry_key) const

void	AdoptConfig (void)

void	AdoptSubstructure (void)

virtual void	Print (ostream &stream) const
	Print algorithm info. More...

Static Public Attributes
static const double	kO16NubarThr = 0.0114

static const double	kO16NuMinE = 0.0150

static const double	kMaxE = 0.1000

Private Member Functions
void	LoadConfig (void)

void	MakeAntiNuESpline (void)

void	MakeNuESpline (void)

Private Attributes
TSpline3 *	fXsplNue

TSpline3 *	fXsplNuebar
	a spline around the 16O+nu_e xsec points listed in the reference paper More...

Additional Inherited Members
Static Public Member Functions inherited from genie::Algorithm
static string	BuildParamVectKey (const std::string &comm_name, unsigned int i)

static string	BuildParamVectSizeKey (const std::string &comm_name)

Protected Member Functions inherited from genie::XSecAlgorithmI
	XSecAlgorithmI ()

	XSecAlgorithmI (string name)

	XSecAlgorithmI (string name, string config)

Protected Member Functions inherited from genie::Algorithm
	Algorithm ()

	Algorithm (string name)

	Algorithm (string name, string config)

void	Initialize (void)

void	DeleteConfig (void)

void	DeleteSubstructure (void)

Registry *	ExtractLocalConfig (const Registry &in) const

Registry *	ExtractLowerConfig (const Registry &in, const string &alg_key) const
	Split an incoming configuration Registry into a block valid for the sub-algo identified by alg_key. More...

template<class T >
bool	GetParam (const RgKey &name, T &p, bool is_top_call=true) const

template<class T >
bool	GetParamDef (const RgKey &name, T &p, const T &def) const

template<class T >
int	GetParamVect (const std::string &comm_name, std::vector< T > &v, bool is_top_call=true) const
	Handle to load vectors of parameters. More...

int	GetParamVectKeys (const std::string &comm_name, std::vector< RgKey > &k, bool is_top_call=true) const

int	AddTopRegistry (Registry *rp, bool owns=true)
	add registry with top priority, also update ownership More...

int	AddLowRegistry (Registry *rp, bool owns=true)
	add registry with lowest priority, also update ownership More...

int	MergeTopRegistry (const Registry &r)

int	AddTopRegisties (const vector< Registry * > &rs, bool owns=false)
	Add registries with top priority, also udated Ownerships. More...

Protected Attributes inherited from genie::Algorithm
bool	fAllowReconfig

bool	fOwnsSubstruc
	true if it owns its substructure (sub-algs,...) More...

AlgId	fID
	algorithm name and configuration set More...

vector< Registry * >	fConfVect

vector< bool >	fOwnerships
	ownership for every registry in fConfVect More...

AlgStatus_t	fStatus
	algorithm execution status More...

AlgMap *	fOwnedSubAlgMp
	local pool for owned sub-algs (taken out of the factory pool) More...

Detailed Description

An implementation of the neutrino - Oxygen16 cross section.

E. Kolbe, K. Langanke, P. Vogel ; Phys. Rev. D66, 013007, 2002

Author: Corey Reed <cjreed nikhef.nl> Nikhef

January 27, 2010

Definition at line 29 of file KLVOxygenIBDPXSec.h.

Constructor & Destructor Documentation

genie::KLVOxygenIBDPXSec::KLVOxygenIBDPXSec ( )

KLVOxygenIBDPXSec::KLVOxygenIBDPXSec ( string config )

Definition at line 40 of file KLVOxygenIBDPXSec.cxx.

                                                   :
    XSecAlgorithmI("genie::KLVOxygenIBDPXSec", config),
    fXsplNue(0),
    fXsplNuebar(0)
 {
 
 }

KLVOxygenIBDPXSec::~KLVOxygenIBDPXSec ( )

virtual

Definition at line 48 of file KLVOxygenIBDPXSec.cxx.

 {
    delete fXsplNue;
    delete fXsplNuebar;
 }

Member Function Documentation

void KLVOxygenIBDPXSec::Configure ( const Registry & config )

virtual

Configure the algorithm with an external registry The registry is merged with the top level registry if it is owned, Otherwise a copy of it is added with the highest priority

Reimplemented from genie::Algorithm.

Definition at line 214 of file KLVOxygenIBDPXSec.cxx.

 {
   Algorithm::Configure(config);
   this->LoadConfig();
 }

void KLVOxygenIBDPXSec::Configure ( string config )

virtual

Configure the algorithm from the AlgoConfigPool based on param_set string given in input An algorithm contains a vector of registries coming from different xml configuration files, which are loaded according a very precise prioriy This methods will load a number registries in order of priority: 1) "Tunable" parameter set from CommonParametes. This is loaded with the highest prioriry and it is designed to be used for tuning procedure Usage not expected from the user. 2) For every string defined in "CommonParame" the corresponding parameter set will be loaded from CommonParameter.xml 3) parameter set specified by the config string and defined in the xml file of the algorithm 4) if config is not "Default" also the Default parameter set from the same xml file will be loaded Effectively this avoids the repetion of a parameter when it is not changed in the requested configuration

Reimplemented from genie::Algorithm.

Definition at line 220 of file KLVOxygenIBDPXSec.cxx.

 {
   Algorithm::Configure(config);
   this->LoadConfig();
 }

double KLVOxygenIBDPXSec::Integral ( const Interaction * i ) const

virtual

Integrate the model over the kinematic phase space available to the input interaction (kinematical cuts can be included)

Implements genie::XSecAlgorithmI.

Definition at line 126 of file KLVOxygenIBDPXSec.cxx.

 {
    // Compute the total cross section for a free nucleon target
 
    assert(interaction!=0);
    if(! this -> ValidProcess    (interaction) ) return 0.;
    if(! this -> ValidKinematics (interaction) ) return 0.;
 
    const InitialState & init_state = interaction -> InitState();
    const double         Ev         = init_state.ProbeE(kRfHitNucRest);
    const int            prbpdg     = init_state.ProbePdg();
 
    double xsec = 0;
 
    if (pdg::IsNuE(prbpdg)) {
       assert(fXsplNue!=0);
       xsec = fXsplNue->Eval(Ev);
    } else if (pdg::IsAntiNuE(prbpdg)) {
       assert(fXsplNuebar!=0);
       xsec = fXsplNuebar->Eval(Ev);
    } else {
       LOG("KLVOxygen", pERROR) << "*** <Integral> Probe has invalid pdg ["
                                << init_state.ProbePdg() << "]";
    }
 
    return xsec;
 }

void KLVOxygenIBDPXSec::LoadConfig ( void )

private

Definition at line 226 of file KLVOxygenIBDPXSec.cxx.

 {
    // make splines
    MakeAntiNuESpline();
    MakeNuESpline();
 }

void KLVOxygenIBDPXSec::MakeAntiNuESpline ( void )

private

Definition at line 69 of file KLVOxygenIBDPXSec.cxx.

 {
    // make a new xsec spline from the KLV paper's calculation
    // for the 16O + nu_e_bar reaction
    // remove any spline that might already exist
 
    delete fXsplNuebar;
 
    static const Int_t npts_nuebar = 21;
    static const Double_t Evnuebar[npts_nuebar] = {
       kO16NubarThr,
       15.0e-3, 17.5e-3, 20.0e-3, 22.5e-3,  25.0e-3,
       27.5e-3, 30.0e-3, 32.5e-3, 35.0e-3,  37.5e-3,
       40.0e-3, 45.0e-3, 50.0e-3, 55.0e-3,  60.0e-3,
       65.0e-3, 70.0e-3, 80.0e-3, 90.0e-3, 100.0e-3
    };
    static const Double_t xsunit = 1e-42*units::cm2;
    static const Double_t Onuebar[npts_nuebar] = {
       0,
       2.53e-2*xsunit, 7.27e-2*xsunit, 1.81e-1*xsunit, 4.21e-1*xsunit, 8.90e-1*xsunit,
       1.69*xsunit,    2.94*xsunit,    4.76*xsunit,    7.26*xsunit,    1.06e1*xsunit,
       1.48e1*xsunit,  2.64e1*xsunit,  4.29e1*xsunit,  6.46e1*xsunit,  9.17e1*xsunit,
       1.25e2*xsunit,  1.63e2*xsunit,  2.57e2*xsunit,  3.77e2*xsunit,  5.18e2*xsunit
    };
    // make spline via dummy TGraph because TSpline3's ctor isn't const correct
    const TGraph dummy(npts_nuebar,Evnuebar,Onuebar);
    fXsplNuebar = new TSpline3("16O_nu_e_bar_xsec",&dummy);
    fXsplNuebar->SetNpx(500);
 }

void KLVOxygenIBDPXSec::MakeNuESpline ( void )

private

Definition at line 99 of file KLVOxygenIBDPXSec.cxx.

 {
    // make a new xsec spline from the KLV paper's calculation
    // for the 16O + nu_e reaction
    // remove any spline that might already exist
 
    delete fXsplNue;
 
    static const Int_t npts_nue = 20;
    static const Double_t Evnue[npts_nue] = {
       15.0e-3, 17.5e-3, 20.0e-3, 22.5e-3,  25.0e-3,
       27.5e-3, 30.0e-3, 32.5e-3, 35.0e-3,  37.5e-3,
       40.0e-3, 45.0e-3, 50.0e-3, 55.0e-3,  60.0e-3,
       65.0e-3, 70.0e-3, 80.0e-3, 90.0e-3, 100.0e-3
    };
    static const Double_t xsunit = 1e-42*units::cm2;
    static const Double_t Onue[npts_nue] = {
       1.56e-6*xsunit, 8.42e-4*xsunit, 7.26e-3*xsunit, 3.99e-2*xsunit, 1.77e-1*xsunit,
       5.23e-1*xsunit, 1.25*xsunit,    2.58*xsunit,    4.76*xsunit,    8.05*xsunit,
       1.28e1*xsunit,  2.76e1*xsunit,  5.21e1*xsunit,  8.89e1*xsunit,  1.41e2*xsunit,
       2.12e2*xsunit,  3.02e2*xsunit,  5.52e2*xsunit,  8.92e2*xsunit,  1.32e3*xsunit
    };
    const TGraph dummy(npts_nue,Evnue,Onue);
    fXsplNue = new TSpline3("16O_nu_e_xsec",&dummy);
    fXsplNue->SetNpx(500);
 }

bool KLVOxygenIBDPXSec::ValidKinematics ( const Interaction * i ) const

virtual

Is the input kinematical point a physically allowed one?

Reimplemented from genie::XSecAlgorithmI.

Definition at line 186 of file KLVOxygenIBDPXSec.cxx.

 {
    // check energy range
 
    if(interaction->TestBit(kISkipKinematicChk)) return true;
 
    const InitialState & init_state = interaction -> InitState();
    const double Ev = init_state.ProbeE(kRfHitNucRest);
    if ( pdg::IsNuE(init_state.ProbePdg()) ) {
       if ( (Ev < kO16NuMinE) || (Ev > kMaxE) ) {
          LOG("KLVOxygen", pERROR) << "*** Ev=" << Ev
                                   << " outside range ("
                                   << kO16NuMinE << ", " << kMaxE << ")!";
          return false;
       }
    } else if ( pdg::IsAntiNuE(init_state.ProbePdg()) ) {
       if ( (Ev < kO16NubarThr) || (Ev > kMaxE) ) {
          LOG("KLVOxygen", pERROR) << "*** Ev=" << Ev
                                   << " outside range ("
                                   << kO16NubarThr << ", " << kMaxE << ")!";
          return false;
       }
    }
 
    const KPhaseSpace & kps = interaction->PhaseSpace();
    return kps.IsAboveThreshold();
 }

bool KLVOxygenIBDPXSec::ValidProcess ( const Interaction * i ) const

virtual

Can this cross section algorithm handle the input process?

Implements genie::XSecAlgorithmI.

Definition at line 154 of file KLVOxygenIBDPXSec.cxx.

 {
    if(interaction->TestBit(kISkipProcessChk)) return true;
 
    // should be IBD and either nu_e + O16 or anu_e + O16
    if (interaction->ProcInfo().IsInverseBetaDecay()) {
 
       const InitialState & init_state = interaction -> InitState();
       if (init_state.TgtPdg() == kPdgTgtO16) {
 
          if ( (pdg::IsNuE(init_state.ProbePdg())) ||
               (pdg::IsAntiNuE(init_state.ProbePdg())) ) {
 
             return true;
 
          } else {
             LOG("KLVOxygen", pERROR) << "*** Probe has invalid pdg ["
                                      << init_state.ProbePdg() << "]";
          }
 
       } else {
          LOG("KLVOxygen", pERROR) << "*** Target has pdg ["
                                   << init_state.TgtPdg()
                                   << "], not 16O ("
                                   << kPdgTgtO16 << ")!";
       }
 
    }
 
    return false;
 }

double KLVOxygenIBDPXSec::XSec	(	const Interaction *	i,
		KinePhaseSpace_t	k
	)		const

virtual

Compute the cross section for the input interaction.

Implements genie::XSecAlgorithmI.

Definition at line 54 of file KLVOxygenIBDPXSec.cxx.

 {
    // compute the differential cross section ds/dt
    // currently not implemented (only total)
 
   if(! this -> ValidProcess    (interaction) ) return 0.;
   if(! this -> ValidKinematics (interaction) ) return 0.;
 
   LOG("KLVOxygen", pWARN)
      << "*** No differential cross section calculation is implemented yet";
 
   return 1;
 }

Member Data Documentation

TSpline3* genie::KLVOxygenIBDPXSec::fXsplNue

private

Definition at line 57 of file KLVOxygenIBDPXSec.h.

TSpline3* genie::KLVOxygenIBDPXSec::fXsplNuebar

private

a spline around the 16O+nu_e xsec points listed in the reference paper

Definition at line 58 of file KLVOxygenIBDPXSec.h.

const double KLVOxygenIBDPXSec::kMaxE = 0.1000

static

Definition at line 34 of file KLVOxygenIBDPXSec.h.

const double KLVOxygenIBDPXSec::kO16NubarThr = 0.0114

static

Definition at line 32 of file KLVOxygenIBDPXSec.h.

const double KLVOxygenIBDPXSec::kO16NuMinE = 0.0150

static

Definition at line 33 of file KLVOxygenIBDPXSec.h.

The documentation for this class was generated from the following files:

Generator/src/Physics/InverseBetaDecay/XSection/KLVOxygenIBDPXSec.h
Generator/src/Physics/InverseBetaDecay/XSection/KLVOxygenIBDPXSec.cxx

Public Member Functions

Static Public Attributes

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation