Task 3.1.1: The Real-time Reconstruction Revolution (R³ – Rcube)

Task leads: Marco Rovere (CERN)

The traditional CMS Phase-2 reconstruction is off-line, takes tens of second per event, and is based on algorithms developed decades ago. The R³ project will aim to modernize this system by leveraging capacity across the data center, heterogeneous compute resources, and modern AI-driven techniques, using modern development methodologies, allowing for more accurate event reconstruction and higher confidence in trigger decisions.

Publications and other resources

Talks and Posters at conferences:

AuthorEventDateDocument
Jan Gerrit SchulzPresentation at Connecting the Dots • Tokyo, JapanNovember 11th, 2025Optimization and Outer Tracker
Extension of the Cellular
Automaton Algorithm for CMS
Phase-2 HLT Tracking
Luca FerraginaPresentation at Connecting the Dots • Tokyo, JapanNovember 11th, 2025Muon Tracking at the CMS
High-Level Trigger
for the HL-LHC Upgrade
Jan Gerrit SchulzPoster at Connecting the Dots • Tokyo, JapanNovember 2025Simulation truth for optimal CMS pixel tracking

Approved material:

AuthorDateDocument
CMS CollaborationNovember 3rd, 2025SimPixelTracks: A new tool for analyzing
Patatrack pixel tracking performance
CMS CollaborationNovember 3rd, 2025Performance of CMS pixel tracking at the
High-Level Trigger for Phase-2
CMS CollaborationNovember 17h, 2025Muon Tracking at the CMS High-Level Trigger for
the HL-LHC Upgrade