Description  of Extended TFC Branch

Extended TFC branch (SttTX) -- All values related to the extended TFC that aren't already stored in the SttT branch.

Leaves: One entry per hit per crate per event.

Leaf Name
Description
Notes
ntracks
Number of extended TFC tracks
Branch index
ptq
Packed trigger qualifiers. (3 bits - LSB->MSB: forced write, collect status, l2stt needed)

evtid
Event id (should be zero).

roadout Part of the output address.

cttindex
CTT index of the current road (extended track)
1-47
overflow
Overflow. Set if >58 tracks/road, zero otherwise.

processing
Processing flag. Set by DSP.

hitcount
Number of hits for current road (extended track).

nfitsa
Number of fits coming from row "A" of DSPs.

nfitsb
Number of fits coming from row "B" of DSPs.

sttstatus
STT status word from extended TFC header.

psraddr
Preshower relative address.

psadj
Adjacent preshower cluster.
boolean
errorcode
CTT  track error code.

loosematch
Loose match with CPS axial cluster.

tightmatch
Tight match with CPS axial cluster.

ptext
Extended pT bin.
3-bit
ptbin
Encoded pT bin.
2-bit
sign
Track curvature bit.
1=1, 0=-1
sector
Trigger sector address.
0-63
duplication Value of 1 if track passed to 2 TFCs.

isol
Value of 1 for isolated track.

hfiber
H fiber number of seed CTT track.

radius
Current layer + this value in 50 micron units.
per track per hit
barrel
Barrel of hit.
per track per hit
layer
Layer of hit.
per track per hit
hitphi
Phi of hit (wrt to TFC phi edge in units of 1.25E-5 rad)
per track per hit
matlutaddr1
Address of matrix LUT - first pass.
-1 fit failed
matlutaddr2
Address of matrix LUT - second pass.
-1 fit failed
tfc
Current TFC (0 or 1).

sextant Sextant of current track.

OK
Track was able (1), or not (0), to be fit.

OKhit
Hit was used (1), or not (0), in fit.

barrel
SMT barrel of hit.
1-6 (0=problem)
dedx
Dedx of  hit.

hitphi
Phi value of corresponding hit.

layer
SMT layer of hit.

radius
Relative radius of hit.



Last updated: July 31, 2004