Fast timing silicon R$\&$D for the future Electron-Ion Collider

TL;DR

This paper discusses the development of a fast timing silicon tracking detector using MALTA2 technology for the Electron-Ion Collider, aiming to enhance track reconstruction and background rejection.

Contribution

It introduces a new MALTA2 quad-sensor prototype module and evaluates its impact on EIC physics studies, advancing silicon detector R&D for future collider experiments.

Findings

MALTA2 technology achieves fast timing resolution suitable for EIC needs

Development of a new quad-sensor prototype module

Improved track reconstruction and background rejection at EIC

Abstract

The proposed Electron-Ion Collider (EIC) will utilize high-luminosity high-energy electron+proton ($e+p$) and electron+nucleus ($e+A$) collisions to solve several fundamental questions including searching for gluon saturation and studying the proton/nuclear structure. Complementary to the ongoing EIC project detector technical prototype carried out by the ePIC collaboration, a Depleted Monolithic Active Pixel Sensor (i.e., MALTA2) based fast timing silicon tracking detector (FMT) has been proposed to provide additional hits for track reconstruction in the forward and backward region at the EIC to improve the overall track reconstruction quality. The fast timing resolution of the MALTA2 technology will help reject background events at the EIC as well. Progress of latest MALTA2 R$\&$D, the development of a new MALTA2 quad-sensor prototype module and impacts of the proposed FMT in EIC physics studies will be discussed.