Offline Technical Working Group Report Latifa Elouadrhiri CLAS Collaboration meeting February 28, 20

1
CLAS12
Preshower EC (not visible)
Forward EC
Low Threshold Cerenkov Counter (LTCC)
Forward TOF
Forward Drift Chambers
Torus Coils
High Threshold Cerenkov(HTCC)
Central Detector
Inner EC (not visible)
Beamline
Coil EC
2
CLAS12 Central Detector
3
CLAS12 Central Tracking Detector
pitch 100-300mm
readout
Cathode Pad Chambers - 20 pads in
azimuth/sl - 40 pads parallel to beam/sl
- 160 anode wires - 1600 cathode
pads read out
Silicon micro strip

• forward track reconstruction
• large angle tracking
• - high rate operation near target

4
Options for tracking in the central detector SVT
only
SVT only (pcDR design)
SVT and DC (pcDR design)
5
Options for tracking in the central detector SVT
onlyNew optimization
SVT and DC (pcDR design)
SVT only (New Optimization)
6
Options for tracking in the central detector DC
only
SVT and DC pcDR design
DC only as in pCDR
7
Options for tracking in the central detector DC
only, new optimization
DC (new optimization)
SVT and DC pcDR design
8
Tracking in the central detector and magnetic
field
9
Torus field distributions
5o
10o
20o
30o
40o
10
Momentum Resolution in the forward direction
11
Forward tracking options