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Beam dump experiments provide a distinctive opportunity to search for dark photons, which are compelling candidates for dark matter with low mass. In this study, we propose the application of Graph Neural Networks (GNN) in tracking…

High Energy Physics - Experiment · Physics 2024-04-23 Zejia Lu , Xiang Chen , Jiahui Wu , Yulei Zhang , Liang Li

A novel combination of data analysis techniques is proposed for the reconstruction of all tracks of primary charged particles, as well as of daughters of displaced vertices (decays, photon conversions, nuclear interactions), created in high…

Instrumentation and Detectors · Physics 2019-10-16 Ferenc Siklér

After a highly successful first data taking period at the LHC, the LHCb experiment developed a new trigger strategy with a real-time reconstruction, alignment and calibration for Run II. This strategy relies on offline-like track…

Instrumentation and Detectors · Physics 2017-11-23 Marian Stahl

The Belle II experiment at KEK in Japan considers upgrading its vertex detector system to address the challenges posed by high background levels caused by the increased luminosity of the SuperKEKB collider. One proposal for upgrading the…

The application of Graph Neural Networks (GNN) in track reconstruction is a promising approach to cope with the challenges arising at the High-Luminosity upgrade of the Large Hadron Collider (HL-LHC). GNNs show good track-finding…

High Energy Physics - Experiment · Physics 2024-01-30 Lukas Heinrich , Benjamin Huth , Andreas Salzburger , Tilo Wettig

We developed a Transformer-based pattern recognition method for positron track reconstruction in the MEG II experiment. The model acts as a classifier to remove pileup hits in the MEG II drift chamber, which operates under a high pileup…

High Energy Physics - Experiment · Physics 2025-12-23 Lapo Dispoto , Fedor Ignatov , Atsushi Oya , Yusuke Uchiyama , Antoine Venturini

Accurate determination of particle track reconstruction parameters will be a major challenge for the High Luminosity Large Hadron Collider (HL-LHC) experiments. The expected increase in the number of simultaneous collisions at the HL-LHC…

The Belle II experiment at the SuperKEKB collider in Japan is designed to indirectly probe new physics using approximately 50 times the data recorded by its predecessor. An accurate determination of the decay-point position of subatomic…

Instrumentation and Detectors · Physics 2016-04-07 Gagan B. Mohanty

Machine learning has become a popular instrument for the identification of dark matter candidates at particle collider experiments. They enable the processing of large datasets and are therefore suitable to operate directly on raw data…

High Energy Physics - Experiment · Physics 2022-07-13 Katharina Dort , Johannes Bilk , Stephanie Käs , Jens Sören Lange , Marvin Peter , Timo Schellhass , Benjamin Schwenker , Björn Spruck

Deep SORT\cite{wojke2017simple} is a tracking-by-detetion approach to multiple object tracking with a detector and a RE-ID model. Both separately training and inference with the two model is time-comsuming. In this paper, we unify the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-09 Yuhao Xu , Jiakui Wang

Accurate measuring the location and orientation of individual particles in a beam monitoring system is of particular interest to researchers in multiple disciplines. Among feasible methods, gaseous drift chambers with hybrid pixel sensors…

Data Analysis, Statistics and Probability · Physics 2020-09-22 Pengcheng Ai , Dong Wang , Xiangming Sun , Guangming Huang , Zili Li

Track reconstruction is a vital aspect of High-Energy Physics (HEP) and plays a critical role in major experiments. In this study, we delve into unexplored avenues for particle track reconstruction and hit clustering. Firstly, we enhance…

This paper presents the results of charged particle track reconstruction in CLAS12 using artificial intelligence. In our approach, we use machine learning algorithms to reconstruct tracks, including their momentum and direction, with high…

Instrumentation and Detectors · Physics 2024-04-24 Gagik Gavalian

The future Belle II experiment will employ a computer-farm based data reduction system for the readout of its innermost detector, a DEPFET-technology based silicon detector with pixel readout. A large fraction of the background hits can be…

Instrumentation and Detectors · Physics 2015-04-28 T. Bilka , G. Casarosa , R. Frühwirth , C. Kleinwort , P. Kodys , P. Kvasnicka , J. Lettenbichler , E. Paoloni , J. Rauch , T. Schlüter , S. Yashchenko

The Silicon Vertex Detector of Belle II is a state-of-the-art tracking and vertexing system based on double-sided silicon strip sensors, designed and fabricated by a large international collaboration in the period 2012--2018. Since 2019 it…

Instrumentation and Detectors · Physics 2022-12-06 Francesco Forti

The physics reach of the HL-LHC will be limited by how efficiently the experiments can use the available computing resources, i.e. affordable software and computing are essential. The development of novel methods for charged particle…

Instrumentation and Detectors · Physics 2021-09-08 Catherine Biscarat , Sylvain Caillou , Charline Rougier , Jan Stark , Jad Zahreddine

An efficient and precise reconstruction of charged-particle tracks is crucial for the overall performance of the CMS experiment. During Run 2 of LHC, significant upgrades were made to the track reconstruction algorithms in order to…

Instrumentation and Detectors · Physics 2020-12-15 Walaa Elmetenawee

We describe the principles and performance of the first-level ("L1") hardware track trigger of Belle II, based on neural networks. The networks use as input the results from the standard Belle II trigger, which provides "2D" track…