Muid element numbers. More...

#include <MuidElementNumbers.h>

Public Types
enum	Outcome { c_NotReached = 0 , c_StopInBarrel = 1 , c_StopInForwardEndcap = 2 , c_ExitBarrel = 3 , c_ExitForwardEndcap = 4 , c_StopInBackwardEndcap = 5 , c_ExitBackwardEndcap = 6 , c_CrossBarrelStopInForwardMin = 7 , c_CrossBarrelStopInForwardMax = 21 , c_CrossBarrelStopInBackwardMin = 22 , c_CrossBarrelStopInBackwardMax = 36 , c_CrossBarrelExitForwardMin = 37 , c_CrossBarrelExitForwardMax = 51 , c_CrossBarrelExitBackwardMin = 52 , c_CrossBarrelExitBackwardMax = 66 }
	Outcome of the track extrapolation.

enum	DetectorsCrossed { c_Both = 0 , c_OnlyBarrel = KLMElementNumbers::c_BKLM , c_OnlyEndcap = KLMElementNumbers::c_EKLM }
	Labels for detectors crossed.

enum	Hypothesis { c_NotValid = -1 , c_Positron = 0 , c_Electron = 1 , c_Deuteron = 2 , c_AntiDeuteron = 3 , c_Proton = 4 , c_AntiProton = 5 , c_PionPlus = 6 , c_PionMinus = 7 , c_KaonPlus = 8 , c_KaonMinus = 9 , c_MuonPlus = 10 , c_MuonMinus = 11 }
	Hypothesis number.

enum	IdentifierBits { c_OutcomeBit = 7 , c_LastLayerBit = 4 , c_DetectorBit = 2 , c_DegreesOfFreedomBit = 6 }
	Bits used for unique identifiers in getLongitudinalID() and in getTransverseID(). More...

Public Member Functions
	MuidElementNumbers ()
	Constructor.

	~MuidElementNumbers ()
	Destructor.

Static Public Member Functions
static bool	checkExtrapolationOutcome (unsigned int outcome, int lastLayer)
	Check the track extrapolation outcome. More...

static unsigned int	calculateExtrapolationOutcome (bool isForward, bool escaped, int lastBarrelLayer, int lastEndcapLayer)
	Calculate the track extrapolation outcome. More...

static Hypothesis	calculateHypothesisFromPDG (int pdg)
	Calculate hypothesis number from PDG code. More...

static constexpr int	getMaximalBarrelLayer ()
	Get maximal barrel layer number (0-based).

static constexpr int	getMaximalEndcapForwardLayer ()
	Get maximal endcap-forward layer number (0-based).

static constexpr int	getMaximalEndcapBackwardLayer ()
	Get maximal endcap-forward layer number (0-based).

static constexpr int	getMaximalOutcome ()
	Get maximal value of the track extrapolation outcome.

static constexpr int	getMaximalDetector ()
	Get maximal value of the detector selector (for transverse scattering).

static constexpr int	getMaximalHalfNdof ()
	Get maximal value of NDof/2 (for transverse scattering).

static constexpr int	getSizeReducedChiSquared ()
	Get size of array with reduced chi-squared values (for transverse scattering).

static constexpr double	getMaximalReducedChiSquared ()
	Get maximal value of reduced chi-squared (for transverse scattering).

static std::vector< int >	getPDGVector (int charge)
	Get a vector with all the hypothesis PDG codes used for Muid. More...

static std::vector< int >	getPDGVector ()
	Get a vector with all the hypothesis PDG codes used for Muid. More...

static int	getLongitudinalID (int hypothesis, int outcome, int lastLayer)
	Get the unique longitudinal identifier for given hypothesis, outcome and last layer crossed. More...

static int	getTransverseID (int hypothesis, int detector, int degreesOfFreedom)
	Get the unique transverse identifier for given hypothesis, detector and degrees of freedom. More...

Static Protected Attributes
static constexpr int	m_MaximalBarrelLayer = BKLMElementNumbers::getMaximalLayerNumber() - 1
	Maximal barrel layer number (0-based).

static constexpr int	m_MaximalEndcapForwardLayer = EKLMElementNumbers::getMaximalLayerNumber() - 1
	Maximal endcap-forward layer number (0-based).

static constexpr int	m_MaximalEndcapBackwardLayer = m_MaximalEndcapForwardLayer - 2
	Maximal endcap-backward layer number (0-based).

static constexpr int	m_MaximalOutcome = c_CrossBarrelExitBackwardMax
	Maximal value of the outcome extrapolation.

static constexpr int	m_MaximalDetector = c_OnlyEndcap
	Maximal value of the detector selector (for transverse scattering).

static constexpr int	m_MaximalHalfNDof = 18
	Maximal value of NDof/2 (for transverse scattering).

static constexpr int	m_SizeReducedChiSquared = 100
	Size of array with reduced chi-squared values (for transverse scattering).

static constexpr double	m_MaximalReducedChiSquared = 10.
	Maximal value of reduced chi-squared (for transverse scattering).

Detailed Description

Muid element numbers.

Definition at line 28 of file MuidElementNumbers.h.

Member Enumeration Documentation

◆ IdentifierBits

enum IdentifierBits

Bits used for unique identifiers in getLongitudinalID() and in getTransverseID().

Enumerator
c_OutcomeBit	Number of bits occupied by outcome in getLongitudinalID().
c_LastLayerBit	Number of bits occupied by lastLayer in getLongitudinalID().
c_DetectorBit	Number of bits occupied by detector in getTransverseID().
c_DegreesOfFreedomBit	Number of bits occupied by degreesOfFreedom in getTransverseID().

Definition at line 84 of file MuidElementNumbers.h.

                         {
       c_OutcomeBit = 7,
       c_LastLayerBit = 4,
       c_DetectorBit = 2,
       c_DegreesOfFreedomBit = 6
     };

Member Function Documentation

◆ calculateExtrapolationOutcome()

unsigned int calculateExtrapolationOutcome	(	bool	isForward,
		bool	escaped,
		int	lastBarrelLayer,
		int	lastEndcapLayer
	)

static

Calculate the track extrapolation outcome.

Parameters

[in]	isForward	Forward or backward.
[in]	escaped	Escaped or not from KLM volumes.
[in]	lastBarrelLayer	Last barrel layer crossed during the extrapolation.
[in]	lastEndcapLayer	Last endcap layer crossed during the extrapolation.

Definition at line 77 of file MuidElementNumbers.cc.

 {
   unsigned int outcome = MuidElementNumbers::c_NotReached;
   if ((lastBarrelLayer >= 0) || (lastEndcapLayer >= 0)) {
     /* Stop or exit in barrel. */
     if (lastEndcapLayer < 0) {
       if (escaped)
         outcome = MuidElementNumbers::c_ExitBarrel;
       else
         outcome = MuidElementNumbers::c_StopInBarrel;
     }
     /* Stop or exit in endcap. */
     else {
       if (escaped) {
         if (lastBarrelLayer < 0) { /* Exit in endcap with no barrel hits. */
           if (isForward)
             outcome = MuidElementNumbers::c_ExitForwardEndcap;
           else
             outcome = MuidElementNumbers::c_ExitBackwardEndcap;
         } else { /* Exit in endcap with barrel hits. */
           if (isForward)
             outcome = MuidElementNumbers::c_CrossBarrelExitForwardMin + lastBarrelLayer;
           else
             outcome = MuidElementNumbers::c_CrossBarrelExitBackwardMin + lastBarrelLayer;
         }
       } else {
         if (lastBarrelLayer < 0) { /* Stop in endcap with no barrel hits. */
           if (isForward)
             outcome = MuidElementNumbers::c_StopInForwardEndcap;
           else
             outcome = MuidElementNumbers::c_StopInBackwardEndcap;
         } else { /* Stop in endcap with barrel hits. */
           if (isForward)
             outcome = MuidElementNumbers::c_CrossBarrelStopInForwardMin + lastBarrelLayer;
           else
             outcome = MuidElementNumbers::c_CrossBarrelStopInBackwardMin + lastBarrelLayer;
         }
       }
     }
   }
   return outcome;
 }

◆ calculateHypothesisFromPDG()

MuidElementNumbers::Hypothesis calculateHypothesisFromPDG ( int pdg )

static

Calculate hypothesis number from PDG code.

Parameters

[in] pdg PDG code.

Definition at line 121 of file MuidElementNumbers.cc.

◆ checkExtrapolationOutcome()

bool checkExtrapolationOutcome	(	unsigned int	outcome,
		int	lastLayer
	)

static

Check the track extrapolation outcome.

Parameters

[in]	outcome	Track extrapolation outcome.
[in]	lastLayer	Last layer crossed during the extrapolation.

Definition at line 25 of file MuidElementNumbers.cc.

◆ getLongitudinalID()

int getLongitudinalID	(	int	hypothesis,
		int	outcome,
		int	lastLayer
	)

static

Get the unique longitudinal identifier for given hypothesis, outcome and last layer crossed.

bits 0-3 for hypothesis; bits 4-10 for outcome; bits 11-14 for last layer crossed.

Parameters

[in]	hypothesis	Hypothesis number.
[in]	outcome	Track extrapolation outcome.
[in]	lastLayer	Last layer crossed during the extrapolation..

Definition at line 174 of file MuidElementNumbers.cc.

◆ getPDGVector() [1/2]

std::vector< int > getPDGVector ( )

static

Get a vector with all the hypothesis PDG codes used for Muid.

Both positive and negative charges are returned.

Definition at line 165 of file MuidElementNumbers.cc.

◆ getPDGVector() [2/2]

std::vector< int > getPDGVector ( int charge )

static

Get a vector with all the hypothesis PDG codes used for Muid.

Only the codes of the selected charge are returned.

Parameters

[in] charge Only codes of the selected charge are returned.

Definition at line 153 of file MuidElementNumbers.cc.

◆ getTransverseID()

int getTransverseID	(	int	hypothesis,
		int	detector,
		int	degreesOfFreedom
	)

static

Get the unique transverse identifier for given hypothesis, detector and degrees of freedom.

bit 0-3 for hypothesis; bit 4-5 for detector; bit 6-11 for degrees of freedom.

Parameters

[in]	hypothesis	Hypothesis number.
[in]	detector	Detector number.
[in]	degreesOfFreedom	Number of degrees of freedom.

Definition at line 182 of file MuidElementNumbers.cc.

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

klm/muid/include/MuidElementNumbers.h
klm/muid/src/MuidElementNumbers.cc

Public Types

Public Member Functions

Static Public Member Functions

Static Protected Attributes

Detailed Description

Member Enumeration Documentation

◆ IdentifierBits

Member Function Documentation

◆ calculateExtrapolationOutcome()

◆ calculateHypothesisFromPDG()

◆ checkExtrapolationOutcome()

◆ getLongitudinalID()

◆ getPDGVector() [1/2]

◆ getPDGVector() [2/2]

◆ getTransverseID()