Integration of detector into interaction region at MEIC

The Jefferson Lab's Medium-energy Electron Ion Collider (MEIC) is proposed as anext-generation facility for the study of strong interaction (QCD). Accessing the relevantphysics requires a full-acceptance detector with a dedicated small-angle high-resolutiondetection system capable of covering a wide range of momenta (and charge-to-mass ratios)with respect to the original ion beam. We present a design of such a detection systemintegrated into the collider's interaction region, in which full acceptance is attained byletting small-angle collision products pass through the nearest elements of the machinefinal-focusing system for further detection. The proposed design is consistent with thecurrent collider optics and demonstrates an excellent performance in terms of detectoracceptance and resolution.