Forward Feature Extractor for ATLAS Level-0 Trigger system Phase-II upgrade

Journal of Instrumentation 2026 Open access

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Authors: Viacheslav Filimonov, B. Bauß, V. Büscher, A.A. Fernandez, Ralf Gugel, Christian Kahra, Emanuel Meuser, Uli Schäfer, D. Ta, S. Tapprogge, Andreas Vgenopoulos
DOI: 10.1088/1748-0221/21/01/c01043
Cited by: 0
References: 2

Abstract

Abstract The forward Feature EXtractor (fFEX), a new ATLAS calorimeter first-level trigger subsystem, will extend ATLAS' trigger performance for jets and electromagnetic signatures. Utilising the full calorimeter granularity, each processor processes ∼2.3 Tbps of real-time data. It is part of the trigger upgrade for the challenging conditions in the High Luminosity LHC (HL-LHC) phase, where a significantly increased pile-up is expected. This paper provides an overview of the hardware and firmware design, results of the prototype's verification and highlights fFEX's role in preparing ATLAS for the HL-LHC era.

Fields of Study & Subjects

Particle Detector Development and Performance Particle physics theoretical and experimental studies Particle accelerators and beam dynamics

Publication details

Journal / source
Journal of Instrumentation
Volume
21
Issue
01
Pages
C01043–C01043
Publication date
1 January 2026
Language
EN