#include <JEventProcessor_bcal_calib_cosmic_cdc.h>

Inheritance diagram for JEventProcessor_bcal_calib_cosmic_cdc:

Public Member Functions
	JEventProcessor_bcal_calib_cosmic_cdc ()

	~JEventProcessor_bcal_calib_cosmic_cdc ()

const char *	className (void)

Public Attributes
TTree *	bcal_calib_cosmic_cdc_tree

int	eventnum

int	cell

int	tlayer

int	tmodule

int	tsector

int	tglobalsect

int	numcells
	Number of BCAL cells intersected by the track. More...

float	tdist

float	use

float	dse

float	track_m

float	track_c

float	chisq

int	Ndof

Private Member Functions
jerror_t	init (void)
	Called once at program start. More...

jerror_t	brun (jana::JEventLoop *eventLoop, int32_t runnumber)
	Called everytime a new run number is detected. More...

jerror_t	evnt (jana::JEventLoop *eventLoop, uint64_t eventnumber)
	Called every event. More...

jerror_t	erun (void)
	Called everytime run number changes, provided brun has been called. More...

jerror_t	fini (void)
	Called after last event of last event source has been processed. More...

Private Attributes
int	VERBOSE
	Command Line Parameters. More...

Detailed Description

This class is used to project stright lines from cosmic rays in the CDC lines to the BCAL for the purposes of calibrating the BCAL.

Definition at line 22 of file JEventProcessor_bcal_calib_cosmic_cdc.h.

Constructor & Destructor Documentation

JEventProcessor_bcal_calib_cosmic_cdc::JEventProcessor_bcal_calib_cosmic_cdc ( )

Definition at line 56 of file JEventProcessor_bcal_calib_cosmic_cdc.cc.

JEventProcessor_bcal_calib_cosmic_cdc::~JEventProcessor_bcal_calib_cosmic_cdc ( )

Definition at line 64 of file JEventProcessor_bcal_calib_cosmic_cdc.cc.

Member Function Documentation

jerror_t JEventProcessor_bcal_calib_cosmic_cdc::brun	(	jana::JEventLoop *	eventLoop,
		int32_t	runnumber
	)

private

Called everytime a new run number is detected.

Definition at line 118 of file JEventProcessor_bcal_calib_cosmic_cdc.cc.

const char* JEventProcessor_bcal_calib_cosmic_cdc::className ( void )

inline

Definition at line 26 of file JEventProcessor_bcal_calib_cosmic_cdc.h.

jerror_t JEventProcessor_bcal_calib_cosmic_cdc::erun ( void )

private

Called everytime run number changes, provided brun has been called.

Definition at line 404 of file JEventProcessor_bcal_calib_cosmic_cdc.cc.

jerror_t JEventProcessor_bcal_calib_cosmic_cdc::evnt	(	jana::JEventLoop *	eventLoop,
		uint64_t	eventnumber
	)

private

Called every event.

DTrackCandidate:CDCCOSMIC Get a vector of DTrackCandidate:CDCCOSMIC objects for this event

Create vectors to store the ID of the hit cells and the traversed distance

Only do anything if there is a track found

Get the parameters of the fitted track

Extract the slope and intercept

Store the parameters for both track intersections with the 5 layers

For each layer boundary, calculate the intersection of the DTrackCandidate with the circle and store the r and phi value for both intersections.

For each intersection set, step through each layer

For each layer, step through each sector

IN refers to inner radial boundary, OUT refers to outer radial boundary Find the global sector number for the entrance and exit sectors in this layer

Check that the cells are valid

If the track only goes through 1 sector in this layer, then you are done, get the distance from the (x,y) values of the layer inner and outer boundary intersections

If the track goes through multiple sectors then find the intersection of the DTrackCandidate with the sector boundary.

For each sector, get line boundary on each side and find the (x,y) point at which the track crosses that line

Edge sectors in each layer have

For a central sector, get line boundary on each side and find the distance the phi less side and the phi more side

DBCALHit Get a vector of DBCALHit objects for this event (1 object for each crate/slot/channel above threshold)

Creat maps from the BCAL cell ID to the DBCALHit object pointer

Loop over all DBCALHit objects in this event

Fill the maps with the hits for this event.

Loop over the intersected cells

Definition at line 128 of file JEventProcessor_bcal_calib_cosmic_cdc.cc.

References DTrackCandidate::chisq, DBCALHit::E, DBCALHit::end, getdistance(), getposphi(), japp, DBCALGeometry::kDownstream, DBCALGeometry::kUpstream, DBCALHit::layer, layer, DBCALHit::module, DKinematicData::momentum(), DTrackCandidate::Ndof, DKinematicData::position(), printf(), DBCALHit::sector, sqrt(), VERBOSE, x, and y.