ATLAS Offline Software
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#include <EnergyLossUpdator.h>
Public Member Functions | |
EnergyLossUpdator (const std::string &, const std::string &, const IInterface *) | |
AlgTool like constructor. More... | |
virtual | ~EnergyLossUpdator ()=default |
Virtual destructor. More... | |
virtual double | dEdX (const MaterialProperties &mat, double p, ParticleHypothesis particle=pion) const override final |
dEdX calculation when providing MaterialProperties, a momentum, a pathlength, and a ParicleHypothesis: More... | |
virtual EnergyLoss | energyLoss (const MaterialProperties &mat, double p, double pathcorrection, PropDirection dir=alongMomentum, ParticleHypothesis particle=pion, bool useMPV=false) const override final |
deltaE calculation using dEdX and integrating along pathlength, assuming constant dEdX during for the path. More... | |
virtual EnergyLoss | updateEnergyLoss (EnergyLoss &eLoss, double caloEnergy, double caloEnergyError, double pCaloEntry, double momentumError, int &elossFlag) const override final |
Method to recalculate Eloss values for the fit setting an elossFlag using as an input the detailed Eloss information Calorimeter energy, error momentum and momentum error. More... | |
virtual void | getX0ElossScales (int icalo, double eta, double phi, double &X0Scale, double &ElossScale) const override final |
Routine to calculate X0 and Eloss scale factors for the Calorimeter and Muon System. More... | |
ServiceHandle< StoreGateSvc > & | evtStore () |
The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc . More... | |
const ServiceHandle< StoreGateSvc > & | evtStore () const |
The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc . More... | |
const ServiceHandle< StoreGateSvc > & | detStore () const |
The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc . More... | |
virtual StatusCode | sysInitialize () override |
Perform system initialization for an algorithm. More... | |
virtual StatusCode | sysStart () override |
Handle START transition. More... | |
virtual std::vector< Gaudi::DataHandle * > | inputHandles () const override |
Return this algorithm's input handles. More... | |
virtual std::vector< Gaudi::DataHandle * > | outputHandles () const override |
Return this algorithm's output handles. More... | |
Gaudi::Details::PropertyBase & | declareProperty (Gaudi::Property< T > &t) |
Gaudi::Details::PropertyBase * | declareProperty (const std::string &name, SG::VarHandleKey &hndl, const std::string &doc, const SG::VarHandleKeyType &) |
Declare a new Gaudi property. More... | |
Gaudi::Details::PropertyBase * | declareProperty (const std::string &name, SG::VarHandleBase &hndl, const std::string &doc, const SG::VarHandleType &) |
Declare a new Gaudi property. More... | |
Gaudi::Details::PropertyBase * | declareProperty (const std::string &name, SG::VarHandleKeyArray &hndArr, const std::string &doc, const SG::VarHandleKeyArrayType &) |
Gaudi::Details::PropertyBase * | declareProperty (const std::string &name, T &property, const std::string &doc, const SG::NotHandleType &) |
Declare a new Gaudi property. More... | |
Gaudi::Details::PropertyBase * | declareProperty (const std::string &name, T &property, const std::string &doc="none") |
Declare a new Gaudi property. More... | |
void | updateVHKA (Gaudi::Details::PropertyBase &) |
MsgStream & | msg () const |
MsgStream & | msg (const MSG::Level lvl) const |
bool | msgLvl (const MSG::Level lvl) const |
DeclareInterfaceID (IEnergyLossUpdator, 1, 0) | |
Creates the InterfaceID and interfaceID() method. More... | |
virtual void | validationAction () const |
Validation Action: Can be implemented optionally, outside access to internal validation steps. More... | |
Protected Member Functions | |
void | renounceArray (SG::VarHandleKeyArray &handlesArray) |
remove all handles from I/O resolution More... | |
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > | renounce (T &h) |
void | extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps) |
Add StoreName to extra input/output deps as needed. More... | |
Private Types | |
typedef ServiceHandle< StoreGateSvc > | StoreGateSvc_t |
Private Member Functions | |
double | varianceDeltaQoverP (const MaterialProperties &, double p, double pathcorrection, PropDirection direction=alongMomentum, ParticleHypothesis particleHypothesis=electron) const |
Method to return the variance of the change in q/p for the Bethe-Heitler parameterisation. More... | |
Trk::EnergyLoss | ionizationEnergyLoss (const MaterialProperties &mat, double p, double pathcorrection, PropDirection dir=alongMomentum, ParticleHypothesis particle=pion) const |
Gaudi::Details::PropertyBase & | declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleKeyType &) |
specialization for handling Gaudi::Property<SG::VarHandleKey> More... | |
Gaudi::Details::PropertyBase & | declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleKeyArrayType &) |
specialization for handling Gaudi::Property<SG::VarHandleKeyArray> More... | |
Gaudi::Details::PropertyBase & | declareGaudiProperty (Gaudi::Property< T > &hndl, const SG::VarHandleType &) |
specialization for handling Gaudi::Property<SG::VarHandleBase> More... | |
Gaudi::Details::PropertyBase & | declareGaudiProperty (Gaudi::Property< T > &t, const SG::NotHandleType &) |
specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray> More... | |
Private Attributes | |
bool | m_detailedEloss |
provide extended EnergyLoss info More... | |
bool | m_optimalRadiation |
use calorimeter more optimal for radiation detection More... | |
StoreGateSvc_t | m_evtStore |
Pointer to StoreGate (event store by default) More... | |
StoreGateSvc_t | m_detStore |
Pointer to StoreGate (detector store by default) More... | |
std::vector< SG::VarHandleKeyArray * > | m_vhka |
bool | m_varHandleArraysDeclared |
The mean Energy loss per unit length of a particle is calculated as
\( (dE/dx) = (dE/dX)_{io} + (dE/dX)_{rad} \)
Formulas used:
\( (dE/dX)_{io,mip} = K \cdot \frac{Z}{A} \frac{1/\beta^2} \cdot [\frac{1}{2}] \cdot \ln \frac{2 m_e c^2 \beta^2 \gamma^2 T_max}{I^2} - \beta^2] \), (1)
respectively @f$ (dE/dX)_{io,e} = \frac{1/2} \cdot K \cdot \frac{Z}{A} [2\ln\frac{2m_e c^2}{I} + 3 \ln{\gamma} - 1.95] @f$ (2) Alternatively, the most probable value instead of the mean value can be
taken (steared by boolean in the method signature), taken from (4)
@f$ \_{L}\Delta_p = \xi \left[ln\frac{2mc^2\beta^2\gamma^2}{I} +
ln\frac{\xi}{I} - 0.8 + 4.447 \right] \( with \) \xi = Z N_a \frac{k}{\beta^2}\codt t \( The with of both distributions is given as the (crude) approximation, that the full width at half maximum of the landau distribution is : \) 4 \xi \( For the transformation into a parameterized sigma the factor \) 2\cdot\sqrt{2.\cdot ln(2.) } \( can be used Sigma can be multiplied by a form factor (given through job options) - <b>For radiation corrections: </b> The Bethe-Heitler parameterisation is in terms of \) Z = \frac{E_f}{E_i} \( (2) With this parameterisation the expected energy loss \) \langle Z \rangle = e^{-t} \( (2) where \) t = \frac{x}{X_0} \( or the fraction of a radiation length of material traversed by the particle. This formula can be transposed in terms of \) \Delta (E) \(. The transposition however depends on the direction of propagation. For forwards propagation we get: \) \langle \Delta (E) \rangle = E_i ( 1 - \langle Z \rangle ) \( (2) For the propagation against momentum we get: \) \langle \Delta (E) \rangle = E_i ( \frac{1}{\langle Z \rangle} - 1 ) \( (2) The variance of Z is also defined (2): \) Var(Z) = e^{-t ln(3) / ln(2)} - e^{-2t} \( Transposing this one dervies the following relations for 1. Forwards propagation \) Var ( \Delta \frac{q}{p} ) = \frac{Var(Z)}{\langle Z \rangle ^2 p^2} \( 2. Backwards propagation \) Var ( \Delta \frac{q}{p} ) = \frac{Var(Z)}{p^2} \( Where p is the global momentum. Bethe-Heitler formula \) (dE/dX)_{rad} = \frac{E_{initial}}{X_o}\cdot (\frac{m}{m_e})^2
Definition at line 113 of file EnergyLossUpdator.h.
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privateinherited |
Definition at line 388 of file AthCommonDataStore.h.
Trk::EnergyLossUpdator::EnergyLossUpdator | ( | const std::string & | t, |
const std::string & | n, | ||
const IInterface * | p | ||
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virtualdefault |
Virtual destructor.
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inlineprivateinherited |
specialization for handling Gaudi::Property<SG::VarHandleKeyArray>
Definition at line 170 of file AthCommonDataStore.h.
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inlineprivateinherited |
specialization for handling Gaudi::Property<SG::VarHandleKey>
Definition at line 156 of file AthCommonDataStore.h.
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inlineprivateinherited |
specialization for handling Gaudi::Property<SG::VarHandleBase>
Definition at line 184 of file AthCommonDataStore.h.
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inlineprivateinherited |
specialization for handling everything that's not a Gaudi::Property<SG::VarHandleKey> or a <SG::VarHandleKeyArray>
Definition at line 199 of file AthCommonDataStore.h.
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inherited |
Creates the InterfaceID and interfaceID() method.
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inlineinherited |
Declare a new Gaudi property.
name | Name of the property. |
hndl | Object holding the property value. |
doc | Documentation string for the property. |
This is the version for types that derive from SG::VarHandleBase
. The property value object is put on the input and output lists as appropriate; then we forward to the base class.
Definition at line 245 of file AthCommonDataStore.h.
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inlineinherited |
Declare a new Gaudi property.
name | Name of the property. |
hndl | Object holding the property value. |
doc | Documentation string for the property. |
This is the version for types that derive from SG::VarHandleKey
. The property value object is put on the input and output lists as appropriate; then we forward to the base class.
Definition at line 221 of file AthCommonDataStore.h.
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inlineinherited |
Definition at line 259 of file AthCommonDataStore.h.
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inlineinherited |
Declare a new Gaudi property.
name | Name of the property. |
property | Object holding the property value. |
doc | Documentation string for the property. |
This is the generic version, for types that do not derive from SG::VarHandleKey
. It just forwards to the base class version of declareProperty
.
Definition at line 333 of file AthCommonDataStore.h.
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inlineinherited |
Declare a new Gaudi property.
name | Name of the property. |
property | Object holding the property value. |
doc | Documentation string for the property. |
This dispatches to either the generic declareProperty
or the one for VarHandle/Key/KeyArray.
Definition at line 352 of file AthCommonDataStore.h.
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inlineinherited |
Definition at line 145 of file AthCommonDataStore.h.
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finaloverridevirtual |
dEdX calculation when providing MaterialProperties, a momentum, a pathlength, and a ParicleHypothesis:
Units: [MeV/mm]
Implements Trk::IEnergyLossUpdator.
Definition at line 37 of file EnergyLossUpdator.cxx.
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inlineinherited |
The standard StoreGateSvc/DetectorStore
Returns (kind of) a pointer to the StoreGateSvc
.
Definition at line 95 of file AthCommonDataStore.h.
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finaloverridevirtual |
deltaE calculation using dEdX and integrating along pathlength, assuming constant dEdX during for the path.
The sign depends on the given propagation direction
Units: [MeV]
mpv steers the most probable energy loss
Implements Trk::IEnergyLossUpdator.
Definition at line 72 of file EnergyLossUpdator.cxx.
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inlineinherited |
The standard StoreGateSvc
(event store) Returns (kind of) a pointer to the StoreGateSvc
.
Definition at line 85 of file AthCommonDataStore.h.
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inlineinherited |
The standard StoreGateSvc
(event store) Returns (kind of) a pointer to the StoreGateSvc
.
Definition at line 90 of file AthCommonDataStore.h.
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protectedinherited |
Add StoreName to extra input/output deps as needed.
use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given
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finaloverridevirtual |
Routine to calculate X0 and Eloss scale factors for the Calorimeter and Muon System.
Implements Trk::IEnergyLossUpdator.
Definition at line 315 of file EnergyLossUpdator.cxx.
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overridevirtualinherited |
Return this algorithm's input handles.
We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.
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private |
Definition at line 441 of file EnergyLossUpdator.cxx.
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inlineinherited |
Definition at line 24 of file AthCommonMsg.h.
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inlineinherited |
Definition at line 27 of file AthCommonMsg.h.
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inlineinherited |
Definition at line 30 of file AthCommonMsg.h.
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overridevirtualinherited |
Return this algorithm's output handles.
We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.
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inlineprotectedinherited |
Definition at line 380 of file AthCommonDataStore.h.
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inlineprotectedinherited |
remove all handles from I/O resolution
Definition at line 364 of file AthCommonDataStore.h.
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overridevirtualinherited |
Perform system initialization for an algorithm.
We override this to declare all the elements of handle key arrays at the end of initialization. See comments on updateVHKA.
Reimplemented in DerivationFramework::CfAthAlgTool, AthCheckedComponent< AthAlgTool >, AthCheckedComponent<::AthAlgTool >, and asg::AsgMetadataTool.
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overridevirtualinherited |
Handle START transition.
We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.
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finaloverridevirtual |
Method to recalculate Eloss values for the fit setting an elossFlag using as an input the detailed Eloss information Calorimeter energy, error momentum and momentum error.
Implements Trk::IEnergyLossUpdator.
Definition at line 130 of file EnergyLossUpdator.cxx.
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inlineinherited |
Definition at line 308 of file AthCommonDataStore.h.
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inlinevirtualinherited |
Validation Action: Can be implemented optionally, outside access to internal validation steps.
Definition at line 91 of file IEnergyLossUpdator.h.
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private |
Method to return the variance of the change in q/p for the Bethe-Heitler parameterisation.
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private |
provide extended EnergyLoss info
Definition at line 187 of file EnergyLossUpdator.h.
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privateinherited |
Pointer to StoreGate (detector store by default)
Definition at line 393 of file AthCommonDataStore.h.
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privateinherited |
Pointer to StoreGate (event store by default)
Definition at line 390 of file AthCommonDataStore.h.
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private |
use calorimeter more optimal for radiation detection
Definition at line 188 of file EnergyLossUpdator.h.
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privateinherited |
Definition at line 399 of file AthCommonDataStore.h.
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privateinherited |
Definition at line 398 of file AthCommonDataStore.h.