DTDigiSyncTOFCorr Class Reference

#include <DTDigiSyncTOFCorr.h>

Inheritance diagram for DTDigiSyncTOFCorr:

Public Member Functions
double	digitizerOffset (const DTWireId *id, const DTLayer *layer=nullptr) const override
	Delays to be added to digi times during digitization, in ns. More...
	DTDigiSyncTOFCorr (const edm::ParameterSet &)
	Constructor. More...
double	emulatorOffset (const DTWireId *id) const override
	Offset to obtain "raw" TDCs for the L1 emulator from digis. More...
	~DTDigiSyncTOFCorr () override
	Destructor. More...
Public Member Functions inherited from DTDigiSyncBase
	DTDigiSyncBase ()
	Constructor. More...
virtual	~DTDigiSyncBase ()
	Destructor. More...

Private Attributes
int	corrType
double	theOffset

Detailed Description

Digi offset computed as:
t0 = Tcommon - aTOF

where Tcommon is a fixed offset defined in
DTDigiSyncTOFCorr:offset (in ORCA the default was = 500 ns)

and aTOF is set according to MuBarDigiSyncTOFCorr:TOFCorrection:
0: no TOF correction (aTOF=0)
1: aTOF = the TOF of an infinite-momentum particle travelling from the nominal IP to the 3D center of the chamber
2: ditto, but for a particle travelling to the 3D center of the wire. (This mode is avaliable for comparison with older data which were produced in this way) 3: aTOF = the TOF of an infinite-momentum particle travelling from the nominal IP to the 3D center of the SL. Use this, unless you really know what you are doing.

Author

N. Amapane, R. Bellan - INFN Torino

Definition at line 33 of file DTDigiSyncTOFCorr.h.

Constructor & Destructor Documentation

DTDigiSyncTOFCorr()

DTDigiSyncTOFCorr::DTDigiSyncTOFCorr

(

const edm::ParameterSet &

pSet

)

Constructor.

Definition at line 18 of file DTDigiSyncTOFCorr.cc.

References edm::ParameterSet::getParameter().

                                                                {
  theOffset = pSet.getParameter<double>("offset");     // 500ns
  corrType = pSet.getParameter<int>("TOFCorrection");  // 1
}

~DTDigiSyncTOFCorr()

DTDigiSyncTOFCorr::~DTDigiSyncTOFCorr ( )

override

Destructor.

Definition at line 23 of file DTDigiSyncTOFCorr.cc.

{}

Member Function Documentation

digitizerOffset()

double DTDigiSyncTOFCorr::digitizerOffset ( const DTWireId *  id, const DTLayer *  layer = nullptr  ) const

overridevirtual

Delays to be added to digi times during digitization, in ns.

Implements DTDigiSyncBase.

Definition at line 26 of file DTDigiSyncTOFCorr.cc.

References gather_cfg::cout, l1ctLayer2EG_cff::id, and hltrates_dqm_sourceclient-live_cfg::offset.

                                                                                        {
  double offset = theOffset;
  const double cSpeed = 29.9792458;  // cm/ns

  if (corrType == 1) {
    // Subtraction of assumed TOF, per CHAMBER
    double flightL = layer->chamber()->surface().position().mag();
    offset -= flightL / cSpeed;
  } else if (corrType == 2) {
    // Subtraction of assumed TOF, per WIRE

    // Position of the wire in the Layer's reference frame
    float localXPos = layer->specificTopology().wirePosition(id->wire());
    LocalPoint localPos(localXPos, 0, 0);

    // Distance of the wire to the CMS's I.P.
    double flightL = layer->surface().toGlobal(localPos).mag();

    offset -= flightL / cSpeed;

  } else if (corrType == 3) {
    // Subtraction of assumed TOF, per SUPERLAYER
    double flightL = layer->superLayer()->surface().position().mag();
    offset -= flightL / cSpeed;
  } else if (corrType != 0) {
    cout << "ERROR: SimMuon:DTDigitizer:DTDigiSyncTOFCorr:TOFCorrection = " << corrType << "is not defined " << endl;
  }
  return offset;
}

emulatorOffset()

double DTDigiSyncTOFCorr::emulatorOffset ( const DTWireId *  id ) const

overridevirtual

Offset to obtain "raw" TDCs for the L1 emulator from digis.

Implements DTDigiSyncBase.

Definition at line 57 of file DTDigiSyncTOFCorr.cc.

{ return theOffset; }

Member Data Documentation

corrType

int DTDigiSyncTOFCorr::corrType

private

Definition at line 49 of file DTDigiSyncTOFCorr.h.

theOffset

double DTDigiSyncTOFCorr::theOffset

private

Definition at line 48 of file DTDigiSyncTOFCorr.h.