The COmpact detectoR for the Eic, (CORE) is based on the following key concepts:
A short overall length (it easily fits the original 4.5 m IR limit),
A 2-4 T, compact solenoid (90 cm inner bore radius, 2.5 m long),
A compact all-Si tracker (~45 cm radius),
A high-performance DIRC (e/pi/K/p PID) in the barrel,
A 4pi EMCal with up to 2pi (eta < 0) covered with the highest resolution (PWO) for improved electron ID,
A dual-radiator RICH (aerogel + gas) with outward-focusing mirrors using a common set of photo-sensors,
High-resolution TOF (< 20 psec ?) in the electron endcap.
Many elements are flexible, with a variety of possible technological solutions (including forward EMcal, Hcal, etc).
A more detailed description of CORE was given at the March 17–19 IR2 workshop by Pawel Nadel-Turonski:
https://indico.bnl.gov/event/10677/contributions/46282/attachments/33130/53131/CORE%20IR2%20March%202021.pdf
