Study of momentum-resolution impact by complementing the all-si tracker with GEMs outside the DIRC

• Reynier Cruz Torres (LBNL)

Presentation prepared for ~20 mins, but lots of useful discussion. Next steps: - replace outer two layers of the tracker with a GEM and have another GEM at large R (e.g. ~1m) - Three vertexing layers - 6 or 7 disks in the hadron direction - services connecting vertexing layers with aluminum cone

ECCE Meetings

• Nu Xu