Volume 485 - The European Physical Society Conference on High Energy Physics (EPS-HEP2025) - T11 Detectors
The dRICH detector at the future ePIC experiment
L.R.M. Occhiuto
Full text: pdf
Pre-published on: January 30, 2026
Published on: —
Abstract
The ePIC detector is designed as a general-purpose detector to enable the entire physics program
of the future Electron-Ion Collider (EIC) at BNL, USA.
A key feature will be particle identification (PID). A PID system covering a wide pseudorapid
ity range [-3.3, 3.5] is critical for accurately separating electrons from hadrons such as pions,
kaons, and protons. PID in the forward region will be provided by a dual Radiator Ring Imaging
Cerenkov (dRICH) detector. Photons will be focused by spherical mirrors and detected by silicon
photomultiplier sensors placed on six spherical tiles.
This presentation aims to provide a concise overview of the dRICH. The latest studies of the
achievable pion-kaon separation efficiency will be shown, exploring its dependence on particle
momentumandselected pseudorapidity intervals. Furthermore, GEANT4-based simulation stud
ies will be presented, with a particular emphasis on one of the two radiators integrated in the
dRICH, the aerogel, which enables a detailed investigation of particle behavior at the low momen
tum regime. The detector’s performance, based on chosen geometries, will also be discussed.
DOI: https://doi.org/10.22323/1.485.0513
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