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Data scouting, introduced by CMS in 2011, is the use of specialized data streams based on reduced event content, enabling LHC experiments to record unprecedented numbers of proton-proton collision events that would otherwise be rejected by…

High Energy Physics - Experiment · Physics 2018-08-03 Javier Duarte

Supersymmetry will be searched for in a variety of final states at the LHC. It is crucial that a robust, efficient and unbiased trigger selection for SUSY is implemented from the very early days of data taking. After a brief description of…

High Energy Physics - Experiment · Physics 2007-10-24 A. De Santo

In High-Level Synthesis (HLS), converting a regular C/C++ program into its HLS-compatible counterpart (HLS-C) still requires tremendous manual effort. Various program scripts have been introduced to automate this process. But the resulting…

Systems and Control · Electrical Eng. & Systems 2024-07-08 Kangwei Xu , Grace Li Zhang , Xunzhao Yin , Cheng Zhuo , Ulf Schlichtmann , Bing Li

Large Language Models (LLMs) can aid synthesis planning in chemistry, but standard prompting methods often yield hallucinated or outdated suggestions. We study LLM interactions with a reaction knowledge graph by casting reaction path…

Artificial Intelligence · Computer Science 2026-01-23 Olga Bunkova , Lorenzo Di Fruscia , Sophia Rupprecht , Artur M. Schweidtmann , Marcel J. T. Reinders , Jana M. Weber

Online selection is an essential step to collect the most relevant collisions from the very large number of collisions inside the ATLAS detector at the Large Hadron Collider (LHC). The Fast TracKer (FTK) is a hardware based track finder,…

Instrumentation and Detectors · Physics 2020-10-12 Khalil Bouaouda , Stefan Schmitt , Driss Benchekroun

This work presents the optical reconstruction of computer-generated holograms (CGHs) 3D scenes via spatial light modulators (SLMs). Holography is an optical technique that allows the recording and reconstruction of images of 3D objects, as…

Optics · Physics 2017-05-24 Mauricio Nel Bolanos Pena , Marcos R. R. Gesualdi

Reconstructing charged particle tracks is a fundamental task in modern collider experiments. The unprecedented particle multiplicities expected at the High-Luminosity Large Hadron Collider (HL-LHC) pose significant challenges for track…

High Energy Physics - Experiment · Physics 2025-12-16 Samuel Van Stroud , Philippa Duckett , Max Hart , Nikita Pond , Sébastien Rettie , Gabriel Facini , Tim Scanlon

Large-area PhotoMultiplier Tubes (PMT) allow to efficiently instrument Liquid Scintillator (LS) neutrino detectors, where large target masses are pivotal to compensate for neutrinos' extremely elusive nature. Depending on the detector light…

One of the major challenges for the radio detection of extensive air showers, as encountered by the Giant Radio Array for Neutrino Detection (GRAND), is the requirement of an autonomous radio self-trigger. This work presents the current…

Instrumentation and Methods for Astrophysics · Physics 2024-09-04 Pablo Correa , Jean-Marc Colley , Tim Huege , Kumiko Kotera , Sandra Le Coz , Olivier Martineau-Huynh , Markus Roth , Xishui Tian

In modern High Energy Physics (HEP) experiments, triggers perform the important task of selecting, in real time, the data to be recorded and saved for physics analyses. As a result, trigger strategies play a key role in extracting relevant…

The physics programme of the LHCb experiment at the Large Hadron Collider requires an efficient and precise reconstruction of the particle collision vertices. The LHCb Upgrade detector relies on a fully software-based trigger with an online…

The central detectors of the ALICE experiment at LHC will produce a data size of up to 75 MByte/event at an event rate <200 Hz resulting in a data rate of \~15 GByte/sec. This exceeds the foreseen mass storage bandwidth of 1.25 GByte/sec by…

Instrumentation and Detectors · Physics 2016-09-08 Anders Vestbo

The high-luminosity upgrade of the LHC will come with unprecedented physics and computing challenges. One of these challenges is the accurate reconstruction of particles in events with up to 200 simultaneous proton-proton interactions. The…

Instrumentation and Detectors · Physics 2021-06-04 Shah Rukh Qasim , Kenneth Long , Jan Kieseler , Maurizio Pierini , Raheel Nawaz

We propose an algorithm, deployable on a highly-parallelized graph computing architecture, to perform rapid reconstruction of charged-particle trajectories in the high energy collisions at the Large Hadron Collider and future colliders. We…

Instrumentation and Detectors · Physics 2020-01-22 Ashutosh V. Kotwal

We present the current stage of research progress towards a one-pass, completely Machine Learning (ML) based imaging calorimeter reconstruction. The model used is based on Graph Neural Networks (GNNs) and directly analyzes the hits in each…

Recurrent neural networks have been shown to be effective architectures for many tasks in high energy physics, and thus have been widely adopted. Their use in low-latency environments has, however, been limited as a result of the…

Histogram-based template fits are the main technique used for estimating parameters of high energy physics Monte Carlo generators. Parametrized neural network reweighting can be used to extend this fitting procedure to many dimensions and…

High Energy Physics - Phenomenology · Physics 2021-04-08 Anders Andreassen , Shih-Chieh Hsu , Benjamin Nachman , Natchanon Suaysom , Adi Suresh

Since 2022, the LHCb detector has been taking both proton-proton and lead-ion data at the LHC collision rate using a fully software-based trigger. This has been implemented on GPUs at its first stage and CPUs at its second. The setup allows…

High Energy Physics - Experiment · Physics 2024-12-09 Andy Morris

The LHCb collaboration has redesigned its trigger to enable the full offline detector reconstruction to be performed in real time. Together with the real-time alignment and calibration of the detector, and a software infrastructure to make…

High Energy Physics - Experiment · Physics 2019-06-26 R. Aaij , S. Akar , J. Albrecht , M. Alexander , A. Alfonso Albero , S. Amerio , L. Anderlini , P. d'Argent , A. Baranov , W. Barter , S. Benson , D. Bobulska , T. Boettcher , S. Borghi , E. E. Bowen , L. Brarda , C. Burr , J. -P. Cachemiche , M. Calvo Gomez , M. Cattaneo , H. Chanal , M. Chapman , M. Chebbi , M. Chefdeville , P. Ciambrone , J. Cogan , S. -G. Chitic , M. Clemencic , J. Closier , B. Couturier , M. Daoudi , K. De Bruyn , M. De Cian , O. Deschamps , F. Dettori , F. Dordei , L. Douglas , K. Dreimanis , L. Dufour , G. Dujany , P. Durante , P. -Y. Duval , A. Dziurda , S. Esen , C. Fitzpatrick , M. Fontanna , M. Frank , M. Van Veghel , C. Gaspar , D. Gerstel , Ph. Ghez , K. Gizdov , V. V. Gligorov , E. Govorkova , L. A. Granado Cardoso , L. Grillo , I. Guz , F. Hachon , J. He , D. Hill , W. Hu , W. Hulsbergen , P. Ilten , Y. Li , C. P. Linn , O. Lupton , D. Johnson , C. R. Jones , B. Jost , M. Kenzie , R. Kopecna , P. Koppenburg , M. Kreps , R. Le Gac , R. Lefèvre , O. Leroy , F. Machefert , G. Mancinelli , S. Maddrell-Mander , J. F. Marchand , U. Marconi , C. Marin Benito , M. Martinelli , D. Martinez Santos , R. Matev , E. Michielin , S. Monteil , A. Morris , M. -N. Minard , H. Mohamed , M. J. Morello , P. Naik , S. Neubert , N. Neufeld , E. Niel , A. Pearce , P. Perret , F. Polci , J. Prisciandaro , C. Prouve , A. Puig Navarro , M. Ramos Pernas , G. Raven , F. Rethore , V. Rives Molina , P. Robbe , G. Sarpis , F. Sborzacchi , M. Schiller , R. Schwemmer , B. Sciascia , J. Serrano , P. Seyfert , M. -H. Schune , M. Smith , A. Solomin , M. Sokoloff , P. Spradlin , M. Stahl , S. Stahl , B. Storaci , S. Stracka , M. Szymanski , M. Traill , A. Usachov , S. Valat , R. Vazquez Gomez , M. Vesterinen , B. Voneki , M. Wang , C. Weisser , M. Whitehead , M. Williams , M. Winn , M. Witek , Z. Xiang , A. Xu , Z. Xu , H. Yin , Y. Zhang , Y. Zhou

This paper describes the algorithms used by the CMS experiment to reconstruct and identify tau to hadrons + tau neutrino decays during Run 1 of the LHC. The performance of the algorithms is studied in proton-proton collisions recorded at a…

Instrumentation and Detectors · Physics 2016-02-22 CMS Collaboration