4-Dimensional Trackers
Doug Berry, Valentina Cairo, Angelo Dragone, Matteo Centis-Vignali,, Gabriele Giacomini, Ryan Heller, Sergo Jindariani, Adriano Lai, Lucie, Linssen, Ron Lipton, Chris Madrid, Bojan Markovic, Simone Mazza, Jennifer, Ott, Ariel Schwartzman, Hannsj\"org Weber, Zhenyu Ye

TL;DR
This paper reviews the development and potential impact of 4D silicon trackers with ultra-fast timing and high spatial resolution on future collider experiments, highlighting sensor technologies, limitations, and R&D directions.
Contribution
It provides a comprehensive overview of 4D tracking technology, its integration in collider experiments, and summarizes current sensor and electronics technologies along with future R&D needs.
Findings
4D trackers offer significant physics performance improvements.
Current sensor technologies have limitations that guide future R&D.
Integration of 4D tracking can enhance collider experiment capabilities.
Abstract
4-dimensional (4D) trackers with ultra fast timing (10-30 ps) and very fine spatial resolution (O(few m)) represent a new avenue in the development of silicon trackers, enabling new physics capabilities beyond the reach of the existing tracking detectors. This paper reviews the impact of integrating 4D tracking capabilities on several physics benchmarks both in potential upgrades of the HL-LHC experiments and in several detectors at future colliders, and summarizes the currently available sensor technologies as well as electronics, along with their limitations and directions for RD.
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Taxonomy
TopicsParticle Detector Development and Performance · Radiation Detection and Scintillator Technologies · CCD and CMOS Imaging Sensors
