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Based on a novel shower reconstruction algorithm, the study of two particle separation with tile hadron calorimeter (HCAL) is performed. The separability of two close-by particles is found to be strongly dependent on transverse and…

Instrumentation and Detectors · Physics 2007-05-23 V. Morgunov , A. Raspereza

Efficient and accurate algorithms are necessary to reconstruct particles in the highly granular detectors anticipated at the High-Luminosity Large Hadron Collider and the Future Circular Collider. We study scalable machine learning models…

Data Analysis, Statistics and Probability · Physics 2024-07-17 Joosep Pata , Eric Wulff , Farouk Mokhtar , David Southwick , Mengke Zhang , Maria Girone , Javier Duarte

The first technological SDHCAL prototype having been successfully tested, a new phase of R&D, to validate completely the SDHCAL option for the International Linear Detector (ILD) project of the International Linear Collider (ILC), has…

Instrumentation and Detectors · Physics 2016-08-24 Antoine Pingault

In high energy physics, the ability to reconstruct particles based on their detector signatures is essential for downstream data analyses. A particle reconstruction algorithm based on learning hypergraphs (HGPflow) has previously been…

High Energy Physics - Experiment · Physics 2025-05-02 Nilotpal Kakati , Etienne Dreyer , Anna Ivina , Francesco Armando Di Bello , Lukas Heinrich , Marumi Kado , Eilam Gross

This paper describes the implementation and performance of a particle flow algorithm applied to 20.2 fb$^{-1}$ of ATLAS data from 8 TeV proton-proton collisions in Run 1 of the LHC. The algorithm removes calorimeter energy deposits due to…

High Energy Physics - Experiment · Physics 2017-08-15 ATLAS Collaboration

High precision physics at future colliders requires unprecedented highly granular calorimeters for the application of the Particle Flow (PF) algorithm. The physical proof of concept was given in the previous campaign of beam tests of physic…

Instrumentation and Detectors · Physics 2018-07-01 Adrián Irles

The International Large Detector (ILD) is a proposed detector for the International Linear Collider (ILC). It has been designed to achieve an excellent jet energy resolution by using Particle Flow Algorithms (PFA), which rely on the ability…

We propose ALFA - a novel late fusion algorithm for object detection. ALFA is based on agglomerative clustering of object detector predictions taking into consideration both the bounding box locations and the class scores. Each cluster…

Computer Vision and Pattern Recognition · Computer Science 2019-07-16 Evgenii Razinkov , Iuliia Saveleva , Jiři Matas

The Analog Hadron Calorimeter (AHCAL) concept developed by the CALICE collaboration is a highly granular sampling calorimeter with \SI{3x3}{\square\centi\meter} plastic scintillator tiles individually read out by silicon photomultipliers…

Instrumentation and Detectors · Physics 2021-05-19 Lorenz Emberger

A novel hadron calorimeter is being developed for future lepton colliding beam detectors. The calorimeter is optimized for the application of Particle Flow Algorithms (PFAs) to the measurement of hadronic jets and features a very finely…

A novel hadron calorimeter is being developed for future lepton colliding beam detectors. The calorimeter is optimized for the application of Particle Flow Algorithms (PFAs) to the measurement of hadronic jets and features a very finely…

The CMS Detector consists of a large volume silicon tracker immersed in a high four Tesla magnetic field, together with a high resolution/granularity electromagnetic calorimeter and a nearly full solid angle coverage hadronic calorimeter.…

High Energy Physics - Experiment · Physics 2008-10-22 Joanna Weng

In order to profit from the high granularity of the calorimeters proposed for the ILC that are suitable for the Particle Flow Approach, specialised clustering algorithms have to be developped. GARLIC is such an algorithm with the goal to…

High Energy Physics - Experiment · Physics 2009-02-19 Marcel Reinhard , Jean-Claude Brient

The particle-flow (PF) algorithm, which infers particles based on tracks and calorimeter clusters, is of central importance to event reconstruction in the CMS experiment at the CERN LHC, and has been a focus of development in light of…

Data Analysis, Statistics and Probability · Physics 2023-04-03 Farouk Mokhtar , Joosep Pata , Javier Duarte , Eric Wulff , Maurizio Pierini , Jean-Roch Vlimant

The ILD, International Large Detector, is one of the detector concepts for a future linear collider. Its performance is investigated using Monte-Carlo full simulation and PandoraPFA. Among several options, a combination of the…

Instrumentation and Detectors · Physics 2014-04-14 Trong Hieu Tran

The basic prototype of a tile hadron calorimeter (HCAL) for the International Linear Collider (ILC) has been realised and extensively tested. A major aspect of the proposed concept is the improvement of the jet energy resolution by…

Instrumentation and Detectors · Physics 2016-10-10 Aliakbar Ebrahimi

CALICE collaboration is developing highly granular calorimeters suitable for individual reconstruction of particles in the jets using Particle Flow Algorithms. Such calorimeters should provide the best jet energy resolution at future high…

Instrumentation and Detectors · Physics 2018-02-05 Kostiantyn Shpak

Particle Flow Filters perform the measurement update by moving particles to a different location rather than modifying the particles' weight based on the likelihood. Their movement (flow) is dictated by a drift term, which continuously…

Computational Engineering, Finance, and Science · Computer Science 2025-07-04 Simone Servadio

The Particle Flow Algorithms adopted for future $e^{+}e^{-}$ colliders detectors and phase-II CMS upgrade require very high granularity calorimeters to deconvolve the individual contributions of particles in jets. This is especially true…

Instrumentation and Detectors · Physics 2017-11-27 Kostiantyn Shpak

GRPC Semi-Digital HCAL is a solid option for the PFA oriented calorimetry of the International Linear Collider. Together with the hardware, the software developments is progressing steadily. The stauts and plans for the GRPC SDHCAL software…

Instrumentation and Detectors · Physics 2010-07-20 Manqi Ruan