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We present the results of a detailed simulation of the artificial retina pattern-recognition algorithm, designed to reconstruct events with hundreds of charged-particle tracks in pixel and silicon detectors at LHCb with LHC crossing…

The locations of proton-proton collision points in LHC experiments are called primary vertices (PVs). Preliminary results of a hybrid deep learning algorithm for identifying and locating these, targeting the Run 3 incarnation of LHCb, have…

The increasing luminosities of future Large Hadron Collider runs and next generation of collider experiments will require an unprecedented amount of simulated events to be produced. Such large scale productions are extremely demanding in…

Instrumentation and Detectors · Physics 2020-07-28 Artem Maevskiy , Denis Derkach , Nikita Kazeev , Andrey Ustyuzhanin , Maksim Artemev , Lucio Anderlini

Low-dose Proton Computed Tomography (pCT) is an evolving imaging modality that is used in proton therapy planning which addresses the range uncertainty problem. The goal of pCT is generating a 3D map of Relative Stopping Power (RSP)…

The trigger systems of the LHC detectors play a crucial role in determining the physics capabilities of the experiments. A reduction of several orders of magnitude of the event rate is needed to reach values compatible with the detector…

Instrumentation and Detectors · Physics 2014-09-10 Valentina Gori

Interest in many-core architectures applied to real time selections is growing in High Energy Physics (HEP) experiments. In this paper we describe performance measurements of many-core devices when applied to a typical HEP online task: the…

Instrumentation and Detectors · Physics 2014-11-25 A. Gianelle , S. Amerio , D. Bastieri , M. Corvo , W. Ketchum , T. Liu , A. Lonardo , D. Lucchesi , S. Poprocki , R. Rivera , L. Tosoratto , P. Vicini , P. Wittich

LHCb is one of the four major experiments that will take data at the LHC, due to start operation in 2007. The primary aims of LHCb are to perform precision tests of CP violation and to search for new physics in b hadron decays. About 10^12…

High Energy Physics - Experiment · Physics 2007-07-09 Cristina Lazzeroni

ALICE (A Large Heavy Ion Experiment) is one of the four major experiments at the Large Hadron Collider (LHC) at CERN. The High Level Trigger (HLT) is an online compute farm which reconstructs events measured by the ALICE detector in…

Instrumentation and Detectors · Physics 2019-08-14 David Rohr , Sergey Gorbunov , Volker Lindenstruth

The LHCb detector provides accurate vertex reconstruction and hadronic particle identification, which make the experiment an ideal place to look for light long-lived particles (LLP) decaying into Standard Model (SM) hadrons. In contrast…

High Energy Physics - Phenomenology · Physics 2019-10-14 Xabier Cid Vidal , Yuhsin Tsai , Jose Zurita

The reconstruction of interaction vertices can be decomposed into a pattern recognition problem (``vertex finding'') and a statistical problem (``vertex fitting''). We briefly review classical methods. We introduce novel approaches and…

Computational Physics · Physics 2014-11-18 R. Fruehwirth , W. Waltenberger , K. Prokofiev , T. Speer , P. Vanlaer , E. Chabanat , N. Estre

ALICE (A Large Heavy Ion Experiment) is one of the four large scale experiments at the Large Hadron Collider (LHC) at CERN. The High Level Trigger (HLT) is an online computing farm, which reconstructs events recorded by the ALICE detector…

Significant new challenges are continuously confronting the High Energy Physics (HEP) experiments, in particular the two detectors at the Large Hadron Collider (LHC) at CERN, where nominal conditions deliver proton-proton collisions to the…

Instrumentation and Detectors · Physics 2013-10-24 V. Halyo , A. Hunt , P. Jindal , P. LeGresley , P. Lujan

Experimental High-Energy Physics (HEP), especially the Large Hadron Collider (LHC) programme at the European Organization for Nuclear Research (CERN), is one of the most computationally intensive activities in the world. This demand is set…

Data Analysis, Statistics and Probability · Physics 2021-01-15 Diogo Pires , Pedrame Bargassa , João Seixas , Yasser Omar

Estimating similarity between vertices is a fundamental issue in network analysis across various domains, such as social networks and biological networks. Methods based on common neighbors and structural contexts have received much…

Social and Information Networks · Computer Science 2015-04-14 Jing Zhang , Jie Tang , Cong Ma , Hanghang Tong , Yu Jing , Juanzi Li

Fast 4$\pi$ solid angle particle track recognition has been a challenge in particle physics for a long time, especially in using nuclear emulsion detectors. The recent advances in computing technology opened the way for its realization. A…

Instrumentation and Detectors · Physics 2015-06-18 A. Ariga , T. Ariga

We view the reconstruction of CAD models in the boundary representation (B-Rep) as the detection of geometric primitives of different orders, i.e. vertices, edges and surface patches, and the correspondence of primitives, which are…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Haoxiang Guo , Shilin Liu , Hao Pan , Yang Liu , Xin Tong , Baining Guo

The development of an LHC physics analysis involves numerous investigations that require the repeated processing of terabytes of data. Thus, a rapid completion of each of these analysis cycles is central to mastering the science project. We…

Data Analysis, Statistics and Probability · Physics 2022-07-19 Niclas Eich , Martin Erdmann , Peter Fackeldey , Benjamin Fischer , Dennis Noll , Yannik Rath

A second major LHCb detector upgrade will be installed during long shutdown 4 (LS4) of the CERN Large Hadron Collider. The new detector will provide excellent performance for studies of Quantum Chromodynamics at high temperature and…

High Energy Physics - Experiment · Physics 2025-04-01 LHCb collaboration

LHCb is one of the major experiments operating at the Large Hadron Collider at CERN. The richness of the physics program and the increasing precision of the measurements in LHCb lead to the need of ever larger simulated samples. This need…

Instrumentation and Detectors · Physics 2021-02-03 Fedor Ratnikov

A new generation of manycore processors is on the rise that offers dozens and more cores on a chip and, in a sense, fuses host processor and accelerator. In this paper we target the efficient training of generalized linear models on these…

Performance · Computer Science 2021-10-29 Eliza Wszola , Celestine Mendler-Dünner , Martin Jaggi , Markus Püschel