Calorimeter hit-related standard handlers

This page lists handlers related to clusters of hits found on the signal from (M)SADC-based detectors. Instances of SADCHit are collected into clusters named here a CaloHit for further treatment in reconstruction procedures.

Subject: calorimeter hit struct

All the handlers listed below operate with the instances of the CaloHit C/C++ structure that is defined as a subclass of (M)SADC hits collection:

struct CaloHit

Represents a group of SADC hits in the calorimeter.

May imply different hit grouping strategies. Associated hits may be considered partially (for instance, if time cluster label is set for the this CaloHit instamce, probably only eponymous pulses were considered in the hit).

GETTER:

• getter for field CaloHit::hits disabled

• timeClusterLabel – Time cluster label, may be not set

• eDep – Energy deposition sum, MeV

• eDepError – Estimated energy deposition’s error

• time – Mean time

• timeStddev – Time standard deviation (of hits)

• nHits – Returns number of SADC hits

Public Functions

CaloHit(LocalMemory&)

A ctr, needs the pool allocator instance to be bound with.

Public Members

event::Map<DetID, SADCHit, MapTag::sparse_ambig> hits

Elementary hits summed up into this calo hit.

int timeClusterLabel

Time cluster label, may be not set.

double eDep

Energy deposition sum, MeV.

double eDepError

Estimated energy deposition’s error.

double time

Mean time.

double timeStddev

Time standard deviation (of hits)

Note, that CaloHit sometimes may have its underlying hits collection empty for certain data sources (like Monte-Carlo data, if fine granularity is not taken into account).

Handlers list

This handlers deal with CaloHit.

group calo-handlers

class ECALvsHCAL : public na64dp::AbstractHitHandler<event::CaloHit>

Plots energy deposition distribution of ECAL vs HCAL as ROOT:TH2F.

Events without no hits in ECAL or HCAL won’t be considered.

Todo:

remove in favour of BiHitHistogram_Calo_Calo

Note

deprecated handler, to be removed; use generic BiHitHistogram_Calo_Calo instead

class HcalEcal : public na64dp::AbstractHitHandler<event::CaloHit>

A Genfit-based test track fitting handler.

Enables Genfit procedures to perform station-based track fitting routine.

Todo:

remove in favour of BiHitHistogram_Calo_Calo

Todo:

remove in favour of BiHitHistogram_Calo_Calo

Note

deprecated handler, to be removed; use generic BiHitHistogram_Calo_Calo instead

class MakeCaloHit : public na64dp::AbstractHitHandler<event::SADCHit>

Creates a CaloHit item in an event, based on per-cells hits.

Builds up entire calorimeter hit as a whole, based on enrgy deposition in particular cells. Depending on configuration, may create ECAL, HCAL, BGO, SRD etc. Adds hits (instances of CaloHit structure) to an event.

Usage:

- _type: MakeCaloHit
  # optional, hit selection expression
  applyTo: null
  # list of detector names to apply; list of strings, required
  detectors: [..., ...]

Detectors that supposed to be the subject of hits creation should be provided as their names, like “HCAL” (for entire HCAL) or “HCAL3” (for HCAL module #3), “ECAL”, “ECAL0”, “ECAL1”, etc.

Resulting hits will be imposed into main event’s caloHits map.

class PreshowerVsRestECAL : public na64dp::AbstractHitHandler<event::SADCHit>

A correlation “preshower-vs-rest” energy deposition plot

Usage:

- name PreshowerVsRestECAL
  # A base name for the histogram; str, required
  histogramName: ...
  # TH2D description string template; str, required
  histogramTitle: ...
  # Number of bins of preshower (vertical) axis; int, required
  preshowerNBins: ...
  # Range of preshower (vertical) axis; list of two floats, required
  preshowerRange: [..., ...]
  # Number of bins of main part (horizontal) axis; int, required
  restNBins: ...
  # Range of main part (horizontal) axis; list of two floats, required
  restRange: [..., ...]

Depicts sums of energy deposition in preshower vs rest part of ECAL. Use selection to restrict cells for summation

Todo:

Remove.

Note

deprecated, to be removed in favour of generic plotting handler