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Zhangbu Xu (BNL) BNL, Rice, UCLA, Tsinghua , USTC

proposal for large-area high-rate Time-of-Flight and Muon Telescope Detector with MRPC technology for EIC. Zhangbu Xu (BNL) BNL, Rice, UCLA, Tsinghua , USTC. Large-area high-rate MRPC TOF. STAR large-area Time-of-Flight Glass with bulk resistivity 10 12 -10 13 W cm Rate limit 200Hz/cm2

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Zhangbu Xu (BNL) BNL, Rice, UCLA, Tsinghua , USTC

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  1. proposal for large-area high-rate Time-of-Flight and Muon Telescope Detector with MRPC technology for EIC Zhangbu Xu (BNL)BNL, Rice, UCLA, Tsinghua, USTC

  2. Large-area high-rate MRPC TOF • STAR large-area Time-of-Flight • Glass with bulk resistivity 1012-1013Wcm • Rate limit 200Hz/cm2 • Efficiency ~95% • Timing Resolution: 80ps • Pad size: 3x6cm2 • Channels: 23040 • Area: 55m2 • Budget: 4.8+2.5 M$ • 75% at STAR in run9 • EIC Time-of-Flight • High luminosity • Rate dependence on • Distance to IP • Eta range • silicate glasses and semi-conductor ceramics: bulk resistivity is 109-1010W cm (30KHz/cm2) • R&D in China for CBM • Stability and performance • Possible range of resolution:30—100ps • New electronics for trigger and readout

  3. Muon Telescope Detector for EIC • Proposed MTD at STAR • Long MRPC strip • Gas and material same as TOF • 400cm from IP, 56% in fand area of 50m2 • Trigger on dimuon in p+p: >105 rejection • Cost: <2M$ • EIC: exclusive vector meson (J/) production

  4. Conclusions • Produce prototype MRPCs with new materials that allow high rates and test these prototypes under real beam conditions to study their performance and long term stability; • Perform simulations based on EIC physics processes and beam conditions to further improve the system design and detector requirements related to the TOF. This includes a large-area barrel Time-of-Flight system, the necessary start-timing detection of the tagged out-going beam electron, and the Muon telescope detector for muon identification; • Achieving the required high rate capabilities of all of these detectors requires a parallel development of the associated electronics. Our group has considerable experience there.

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