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genie::BertuzzoDNuCOHPXSec Class Reference

Differential cross section for v+As coherent elastic scattering.Coherent DNu.
Is a concrete implementation of the XSecAlgorithmI interface.
. More...

#include <BertuzzoDNuCOHPXSec.h>

Inheritance diagram for genie::BertuzzoDNuCOHPXSec:
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Public Member Functions

 BertuzzoDNuCOHPXSec ()
 
 BertuzzoDNuCOHPXSec (string config)
 
virtual ~BertuzzoDNuCOHPXSec ()
 
double XSec (const Interaction *i, KinePhaseSpace_t k) const override
 Compute the cross section for the input interaction. More...
 
double Integral (const Interaction *i) const override
 
bool ValidProcess (const Interaction *i) const override
 Can this cross section algorithm handle the input process? More...
 
bool ValidKinematics (const Interaction *i) const override
 Is the input kinematical point a physically allowed one? More...
 
void Configure (const Registry &config) override
 
void Configure (string param_set) override
 
- Public Member Functions inherited from genie::XSecAlgorithmI
virtual ~XSecAlgorithmI ()
 
- Public Member Functions inherited from genie::Algorithm
virtual ~Algorithm ()
 
virtual void FindConfig (void)
 
virtual const RegistryGetConfig (void) const
 
RegistryGetOwnedConfig (void)
 
virtual const AlgIdId (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 AlgorithmSubAlg (const RgKey &registry_key) const
 
void AdoptConfig (void)
 
void AdoptSubstructure (void)
 
virtual void Print (ostream &stream) const
 Print algorithm info. More...
 

Private Member Functions

void LoadConfig (void)
 

Private Attributes

const XSecIntegratorIfXSecIntegrator
 cross section integrator More...
 
const EngelFormFactorfFF
 Engel Form Factor algorithm. More...
 
double fEps2
 
std::array< double, 4 > fMixing2s
 
double fAlpha_D
 
double fDNuMass
 
double fDNuMass2
 
double fDMediatorMass
 
double fDMediatorMass2
 

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)
 
static string BuildParamMatKey (const std::string &comm_name, unsigned int i, unsigned int j)
 
static string BuildParamMatRowSizeKey (const std::string &comm_name)
 
static string BuildParamMatColSizeKey (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)
 
RegistryExtractLocalConfig (const Registry &in) const
 
RegistryExtractLowerConfig (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
 
template<class T >
int GetParamMat (const std::string &comm_name, TMatrixT< T > &mat, bool is_top_call=true) const
 Handle to load matrix of parameters. More...
 
template<class T >
int GetParamMatSym (const std::string &comm_name, TMatrixTSym< T > &mat, bool is_top_call=true) const
 
int GetParamMatKeys (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...
 
AlgMapfOwnedSubAlgMp
 local pool for owned sub-algs (taken out of the factory pool) More...
 

Detailed Description

Differential cross section for v+As coherent elastic scattering.Coherent DNu.
Is a concrete implementation of the XSecAlgorithmI interface.
.

References:
E.Bertuzzo, S.Jana, P.A.N.Machado, R. Zukanovich Funcal PhysRevLett.121.241801 (2018)
Author
Author: Iker de Icaza <i.de-icaza-astiz sussex.ac.uk> University of Sussex

Costas Andreopoulos <c.andreopoulos cern.ch> University of Liverpool

Created:
June 12, 2020
License:
Copyright (c) 2003-2024, The GENIE Collaboration For the full text of the license visit http://copyright.genie-mc.org

Definition at line 35 of file BertuzzoDNuCOHPXSec.h.

Constructor & Destructor Documentation

BertuzzoDNuCOHPXSec::BertuzzoDNuCOHPXSec ( )

Definition at line 34 of file BertuzzoDNuCOHPXSec.cxx.

34  :
35 XSecAlgorithmI("genie::BertuzzoDNuCOHPXSec")
36 {
37 
38 }
BertuzzoDNuCOHPXSec::BertuzzoDNuCOHPXSec ( string  config)

Definition at line 40 of file BertuzzoDNuCOHPXSec.cxx.

40  :
41 XSecAlgorithmI("genie::BertuzzoDNuCOHPXSec", config)
42 {
43 
44 }
BertuzzoDNuCOHPXSec::~BertuzzoDNuCOHPXSec ( )
virtual

Definition at line 46 of file BertuzzoDNuCOHPXSec.cxx.

47 {
48 
49 }

Member Function Documentation

void BertuzzoDNuCOHPXSec::Configure ( const Registry config)
overridevirtual

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 148 of file BertuzzoDNuCOHPXSec.cxx.

References genie::Algorithm::Configure(), and LoadConfig().

149 {
150  Algorithm::Configure(config);
151  this->LoadConfig();
152 }
virtual void Configure(const Registry &config)
Definition: Algorithm.cxx:62
void BertuzzoDNuCOHPXSec::Configure ( string  config)
overridevirtual

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 154 of file BertuzzoDNuCOHPXSec.cxx.

References genie::Algorithm::Configure(), and LoadConfig().

155 {
156  Algorithm::Configure(config);
157  this->LoadConfig();
158 }
virtual void Configure(const Registry &config)
Definition: Algorithm.cxx:62
double BertuzzoDNuCOHPXSec::Integral ( const Interaction i) const
overridevirtual

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

Implements genie::XSecAlgorithmI.

Definition at line 105 of file BertuzzoDNuCOHPXSec.cxx.

References fXSecIntegrator, and genie::XSecIntegratorI::Integrate().

106 {
107  double xsec = fXSecIntegrator->Integrate(this,interaction);
108  return xsec;
109 }
const XSecIntegratorI * fXSecIntegrator
cross section integrator
virtual double Integrate(const XSecAlgorithmI *model, const Interaction *interaction) const =0
void BertuzzoDNuCOHPXSec::LoadConfig ( void  )
private

Definition at line 160 of file BertuzzoDNuCOHPXSec.cxx.

References fAlpha_D, fDMediatorMass, fDMediatorMass2, fDNuMass, fDNuMass2, fEps2, fFF, fMixing2s, fXSecIntegrator, genie::Algorithm::GetParam(), genie::Algorithm::GetParamVect(), LOG, pERROR, pFATAL, and genie::Algorithm::SubAlg().

Referenced by Configure().

161 {
162 
163  bool good_configuration = true ;
164 
165  double DKineticMixing = 0.;
166  this->GetParam("Dark-KineticMixing", DKineticMixing);
167  fEps2 = DKineticMixing * DKineticMixing;
168 
169  bool force_unitarity = false ;
170  GetParam( "Dark-Mixing-ForceUnitarity", force_unitarity ) ;
171 
172  unsigned int n_min_mixing = force_unitarity ? 3 : 4 ;
173 
174  std::vector<double> DMixing2s; // |U_{\alpha 4}|^2
175  this->GetParamVect("Dark-Mixings2", DMixing2s);
176 
177  // check whether we have enough mixing elements
178  if ( DMixing2s.size () < n_min_mixing ) {
179  good_configuration = false ;
180  LOG("BertuzzoDNuCOH", pERROR )
181  << "Not enough mixing elements specified, only specified "
182  << DMixing2s.size() << " / " << n_min_mixing ;
183  }
184 
185  double tot_mix = 0.;
186  for( unsigned int i = 0; i < n_min_mixing ; ++i ) {
187  if ( DMixing2s[i] < 0. ) {
188  good_configuration = false ;
189  LOG("BertuzzoDNuCOH", pERROR )
190  << "Mixing " << i << " non positive: " << DMixing2s[i] ;
191  continue ;
192  }
193  tot_mix += fMixing2s[i] = DMixing2s[i] ;
194  }
195 
196  if ( force_unitarity ) {
197  fMixing2s[3] = 1. - tot_mix ;
198  }
199  if ( DMixing2s[3] < 0. ) {
200  good_configuration = false ;
201  LOG("BertuzzoDNuCOH", pERROR )
202  << "Mixing D4 non positive: " << DMixing2s[3] ;
203  }
204 
205  this->GetParam("Dark-Alpha", fAlpha_D);
206 
207  fDNuMass = 0.;
208  this->GetParam("Dark-NeutrinoMass", fDNuMass);
210 
211  fDMediatorMass = 0.;
212  this->GetParam("Dark-MediatorMass", fDMediatorMass);
214 
216  dynamic_cast<const XSecIntegratorI *> (this->SubAlg("XSec-Integrator"));
217  assert(fXSecIntegrator);
218  fFF = dynamic_cast<const EngelFormFactor *> (this->SubAlg("FormFactor"));
219  assert(fFF);
220 
221  if ( ! good_configuration ) {
222  LOG("BertuzzoDNuCOH", pFATAL ) << "Wrong configuration. Exiting" ;
223  exit ( 78 ) ;
224  }
225 
226 }
#define pERROR
Definition: Messenger.h:59
Cross Section Integrator Interface.
Form Factor for BertuzzoDNuCOHXSec...
#define pFATAL
Definition: Messenger.h:56
int GetParamVect(const std::string &comm_name, std::vector< T > &v, bool is_top_call=true) const
Handle to load vectors of parameters.
std::array< double, 4 > fMixing2s
#define LOG(stream, priority)
A macro that returns the requested log4cpp::Category appending a string (using the FILE...
Definition: Messenger.h:96
const XSecIntegratorI * fXSecIntegrator
cross section integrator
bool GetParam(const RgKey &name, T &p, bool is_top_call=true) const
const EngelFormFactor * fFF
Engel Form Factor algorithm.
const Algorithm * SubAlg(const RgKey &registry_key) const
Definition: Algorithm.cxx:345
bool BertuzzoDNuCOHPXSec::ValidKinematics ( const Interaction i) const
overridevirtual

Is the input kinematical point a physically allowed one?

Reimplemented from genie::XSecAlgorithmI.

Definition at line 128 of file BertuzzoDNuCOHPXSec.cxx.

References fDNuMass2, genie::Kinematics::FSLeptonP4(), genie::Interaction::InitState(), genie::KPhaseSpace::IsAboveThreshold(), genie::Interaction::Kine(), genie::kISkipKinematicChk, genie::kRfLab, genie::Target::Mass(), genie::Interaction::PhaseSpace(), genie::InitialState::ProbeE(), and genie::InitialState::Tgt().

Referenced by XSec().

129 {
130  if(interaction->TestBit(kISkipKinematicChk)) return true;
131 
132  if(!interaction->PhaseSpace().IsAboveThreshold()) return false;
133 
134  const double E = interaction->InitState().ProbeE(kRfLab);
135  const double M = interaction->InitState().Tgt().Mass();
136  const TLorentzVector& DNu = interaction->Kine().FSLeptonP4();
137 
138  const double tl = DNu.E()*(M+E) - E*M - 0.5*fDNuMass2;
139  const double tr = E * DNu.P();
140 
141  if(tl < -1.*tr) return false;
142  if(tl > tr) return false;
143 
144  return true;
145 
146 }
const UInt_t kISkipKinematicChk
if set, skip kinematic validity checks
Definition: Interaction.h:48
bool BertuzzoDNuCOHPXSec::ValidProcess ( const Interaction i) const
overridevirtual

Can this cross section algorithm handle the input process?

Implements genie::XSecAlgorithmI.

Definition at line 111 of file BertuzzoDNuCOHPXSec.cxx.

References genie::Interaction::InitState(), genie::ProcessInfo::IsCoherentElastic(), genie::ProcessInfo::IsDarkNeutralCurrent(), genie::pdg::IsNeutrino(), genie::Target::IsNucleus(), genie::kISkipProcessChk, genie::InitialState::ProbePdg(), genie::Interaction::ProcInfo(), and genie::InitialState::Tgt().

Referenced by XSec().

112 {
113  if(interaction->TestBit(kISkipProcessChk)) return true;
114 
115  const ProcessInfo & proc_info = interaction->ProcInfo();
116  if ( ! proc_info.IsCoherentElastic() ) return false;
117  if ( ! proc_info.IsDarkNeutralCurrent() ) return false ;
118 
119  const InitialState & init_state = interaction->InitState();
120  if ( ! pdg::IsNeutrino( TMath::Abs( init_state.ProbePdg() ) ) ) return false ;
121 
122  const Target & target = init_state.Tgt();
123  if( ! target.IsNucleus() ) return false ;
124 
125  return true;
126 }
bool IsNeutrino(int pdgc)
Definition: PDGUtils.cxx:110
bool IsDarkNeutralCurrent(void) const
bool IsNucleus(void) const
Definition: Target.cxx:272
bool IsCoherentElastic(void) const
A class encapsulating an enumeration of interaction types (EM, Weak-CC, Weak-NC) and scattering types...
Definition: ProcessInfo.h:46
A Neutrino Interaction Target. Is a transparent encapsulation of quite different physical systems suc...
Definition: Target.h:40
int ProbePdg(void) const
Definition: InitialState.h:64
const Target & Tgt(void) const
Definition: InitialState.h:66
const UInt_t kISkipProcessChk
if set, skip process validity checks
Definition: Interaction.h:47
Initial State information.
Definition: InitialState.h:48
double BertuzzoDNuCOHPXSec::XSec ( const Interaction i,
KinePhaseSpace_t  k 
) const
overridevirtual

Compute the cross section for the input interaction.

Implements genie::XSecAlgorithmI.

Definition at line 51 of file BertuzzoDNuCOHPXSec.cxx.

References fAlpha_D, fDMediatorMass2, fDNuMass2, fEps2, fFF, fMixing2s, genie::EngelFormFactor::FormFactor(), genie::Kinematics::HadSystP4(), genie::pdg::IsNuE(), genie::pdg::IsNuMu(), genie::pdg::IsNuTau(), genie::constants::kAem, genie::constants::kPi, genie::kPSEDNufE, genie::kRfLab, genie::Target::Mass(), genie::InitialState::ProbeE(), genie::InitialState::ProbePdg(), genie::Kinematics::Q2(), genie::utils::kinematics::Q2(), genie::InitialState::Tgt(), ValidKinematics(), ValidProcess(), and genie::Target::Z().

53 {
54  if(! this -> ValidProcess (interaction) ) return 0.;
55  if(! this -> ValidKinematics (interaction) ) return 0.;
56 
57  const InitialState & init_state = interaction -> InitState();
58  const Kinematics & kinematics = interaction -> Kine();
59  const Target & target = init_state.Tgt();
60 
61  // User inputs to the calculation
62  const int nu_pdg = init_state.ProbePdg();
63  const double E = init_state.ProbeE(kRfLab); // neutrino energy, units: GeV
64  const double Q2 = kinematics.Q2(); // momentum transfer, units: GeV^2
65  const double TE = kinematics.HadSystP4().E(); // energy of the target
66  const unsigned int Z = target.Z(); // number of protons
67 
68  // select the mixing depending on the incoming neutrino
69  unsigned short nu_i = 3;
70  if( pdg::IsNuE( TMath::Abs( nu_pdg ) ) ) nu_i = 0;
71  else if ( pdg::IsNuMu( TMath::Abs( nu_pdg ) ) ) nu_i = 1;
72  else if ( pdg::IsNuTau( TMath::Abs( nu_pdg ) ) ) nu_i = 2;
73  const double DTheta2 = fMixing2s[nu_i] * fMixing2s[3] ;
74 
75  // Target atomic mass number and mass calculated from inputs
76  const double M = target.Mass(); // units: GeV
77 
78  const double FF = fFF->FormFactor(Q2, target);
79  const double TT = TE - M;
80 
81  // auxiliary variables
82  const double E2 = E * E;
83  const double Z2 = Z * Z;
84  const double FF2 = FF * FF;
85  const double TTDiff = TT - M;
86 
87  const double const_factor = 2* constants::kPi * constants::kAem ;
88  const double model_params = fEps2 * DTheta2 * fAlpha_D ;
89 
90  const double num_fact1 = FF2 * Z2;
91  const double num_fact21 = fDNuMass2 * (TTDiff - 2.*E);
92  const double num_fact22 = 2. * M * (2.*E2 - 2.*TT*E + TT*TTDiff);
93  const double den_fact1 = 1. / (E2);
94  const double den_fact2 = TMath::Power((fDMediatorMass2 + 2.*TT*M), -2.);
95 
96  if(kps == kPSEDNufE) {
97  const double xsec = const_factor * model_params * num_fact1 *
98  (num_fact21 + num_fact22) * den_fact1 * den_fact2;
99 
100  return xsec;
101  }
102  return 0.;
103 }
bool IsNuTau(int pdgc)
Definition: PDGUtils.cxx:168
double Q2(const Interaction *const i)
Definition: KineUtils.cxx:1077
Generated/set kinematical variables for an event.
Definition: Kinematics.h:39
bool IsNuE(int pdgc)
Definition: PDGUtils.cxx:158
const TLorentzVector & HadSystP4(void) const
Definition: Kinematics.h:66
double Mass(void) const
Definition: Target.cxx:224
std::array< double, 4 > fMixing2s
bool IsNuMu(int pdgc)
Definition: PDGUtils.cxx:163
double FormFactor(const double Q, const Target &target) const
A Neutrino Interaction Target. Is a transparent encapsulation of quite different physical systems suc...
Definition: Target.h:40
int ProbePdg(void) const
Definition: InitialState.h:64
bool ValidProcess(const Interaction *i) const override
Can this cross section algorithm handle the input process?
int Z(void) const
Definition: Target.h:68
bool ValidKinematics(const Interaction *i) const override
Is the input kinematical point a physically allowed one?
double Q2(bool selected=false) const
Definition: Kinematics.cxx:125
const Target & Tgt(void) const
Definition: InitialState.h:66
double ProbeE(RefFrame_t rf) const
const EngelFormFactor * fFF
Engel Form Factor algorithm.
Initial State information.
Definition: InitialState.h:48

Member Data Documentation

double genie::BertuzzoDNuCOHPXSec::fAlpha_D
private

Definition at line 66 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig(), and XSec().

double genie::BertuzzoDNuCOHPXSec::fDMediatorMass
private

Definition at line 69 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig().

double genie::BertuzzoDNuCOHPXSec::fDMediatorMass2
private

Definition at line 69 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig(), and XSec().

double genie::BertuzzoDNuCOHPXSec::fDNuMass
private

Definition at line 68 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig().

double genie::BertuzzoDNuCOHPXSec::fDNuMass2
private

Definition at line 68 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig(), ValidKinematics(), and XSec().

double genie::BertuzzoDNuCOHPXSec::fEps2
private

Definition at line 60 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig(), and XSec().

const EngelFormFactor* genie::BertuzzoDNuCOHPXSec::fFF
private

Engel Form Factor algorithm.

Definition at line 58 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig(), and XSec().

std::array<double, 4> genie::BertuzzoDNuCOHPXSec::fMixing2s
private

Definition at line 62 of file BertuzzoDNuCOHPXSec.h.

Referenced by LoadConfig(), and XSec().

const XSecIntegratorI* genie::BertuzzoDNuCOHPXSec::fXSecIntegrator
private

cross section integrator

Definition at line 57 of file BertuzzoDNuCOHPXSec.h.

Referenced by Integral(), and LoadConfig().


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