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DOE OSTI · 2371799

A few-degree calorimeter for the future electron-ion collider

Arratia, Miguel·Milton, Ryan·Paul, Sebouh J.·Schmookler, Barak·Zhang, Weibin
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Abstract

In this study, measuring the region 0.1 < Q 2 < 1.0 GeV 2 is essential to support searches for gluon saturation at the future Electron-Ion Collider. Recent studies have revealed that covering this region at the highest beam energies is not feasible with current detector designs, resulting in the so-called Q 2 gap. In this work, we present a design for the Few-Degree Calorimeter (FDC), which addresses this issue. The FDC uses SiPM-on-tile technology with tungsten absorber and covers the range of -4.6 < η < -3.6. It offers fine transverse and longitudinal granularity, along with excellent time resolution, enabling standalone electron tagging. Our design represents the first concrete solution to bridge the Q 2 gap at the EIC.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGYCalorimeterHigh-granularity calorimeterImaging calorimeterSiPM-on-tile

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Arratia, Miguel, Milton, Ryan, Paul, Sebouh J., Schmookler, Barak, Zhang, Weibin. 2024-03-27. A few-degree calorimeter for the future electron-ion collider. https://doi.org/10.1016/j.nima.2024.169280

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