A high-granularity calorimeter insert based on SiPM-on-tile technology at the future Electron-Ion Collider

TL;DR

This paper proposes a high-granularity, SiPM-on-tile calorimeter insert for the Electron-Ion Collider, offering precise 5D shower data, linear response, and promising energy resolution to enhance measurements in electron-proton and electron-nucleus collisions.

Contribution

It introduces a novel calorimeter design with SiPM-on-tile technology optimized for the EIC, addressing coverage, mechanical integration, and data richness challenges.

Findings

Achieves linear response over the EIC energy range.

Meets energy resolution requirements with basic reconstruction.

Provides 5D shower data suitable for machine learning analysis.

Abstract

We present a design for a high-granularity calorimeter insert for future experiments at the Electron-Ion Collider (EIC). The sampling-calorimeter design uses scintillator tiles read out with silicon photomultipliers. It maximizes coverage close to the beampipe, while solving challenges arising from the beam-crossing angle and mechanical integration. It yields a compensated response that is linear over the energy range of interest for the EIC. Its energy resolution meets the requirements set in the EIC Yellow Report even with a basic reconstruction algorithm. Moreover, this detector will provide 5D shower data (position, energy, and time), which can be exploited with machine-learning techniques. This detector concept has the potential to unleash the power of imaging calorimetry at the EIC to enable measurements at extreme kinematics in electron-proton and electron-nucleus collisions.