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Ambiguities of jet algorithms are reinterpreted as instability wrt small variations of input. Optimal stability occurs for observables possessing property of calorimetric continuity (C-continuity) predetermined by kinematical structure of…

High Energy Physics - Phenomenology · Physics 2009-10-28 Fyodor V. Tkachov

We introduce a new jet-finding algorithm for a hadron collider based on maximizing a J_{E_T} function for all possible combinations of particles in an event. This function prefers a larger value of the jet transverse energy and a smaller…

High Energy Physics - Phenomenology · Physics 2014-11-14 Yang Bai , Zhenyu Han , Ran Lu

We present a survey of a comprehensive set of jet substructure observables commonly used to study the modifications of jets resulting from interactions with the Quark Gluon Plasma in Heavy Ion Collisions. The \jewel{} event generator is…

High Energy Physics - Phenomenology · Physics 2024-01-24 Miguel Crispim Romão , José Guilherme Milhano , Marco van Leeuwen

Classification of jets with deep learning has gained significant attention in recent times. However, the performance of deep neural networks is often achieved at the cost of interpretability. Here we propose an interpretable network trained…

High Energy Physics - Phenomenology · Physics 2020-03-27 Amit Chakraborty , Sung Hak Lim , Mihoko M. Nojiri

Jet substructure observables are crucial for exploring the effects of the hot, dense medium and differentiating between quark and gluon jets. In this paper, we investigate the modification of jet shape by calculating the differential girth…

High Energy Physics - Phenomenology · Physics 2023-02-28 Si-Yu Tang , Wei Zhang , Wen-Di Deng , Cheng-De Tian , Fan Yang , Ren-Zhuo Wan

I explore many aspects of jet substructure at the Large Hadron Collider, ranging from theoretical techniques for jet calculations, to phenomenological tools for better searches with jets, to software for implementing and comparing such…

High Energy Physics - Phenomenology · Physics 2015-03-17 Christopher K. Vermilion

Deep learning methods have been increasingly adopted to study jets in particle physics. Since symmetry-preserving behavior has been shown to be an important factor for improving the performance of deep learning in many applications, Lorentz…

High Energy Physics - Phenomenology · Physics 2022-11-09 Shiqi Gong , Qi Meng , Jue Zhang , Huilin Qu , Congqiao Li , Sitian Qian , Weitao Du , Zhi-Ming Ma , Tie-Yan Liu

Many classes of images exhibit rotational symmetry. Convolutional neural networks are sometimes trained using data augmentation to exploit this, but they are still required to learn the rotation equivariance properties from the data.…

Machine Learning · Computer Science 2016-05-27 Sander Dieleman , Jeffrey De Fauw , Koray Kavukcuoglu

Jets are identified and their properties studied in center-of-mass energy sqrt(s) = 7 TeV proton-proton collisions at the Large Hadron Collider using charged particles measured by the ATLAS inner detector. Events are selected using a…

High Energy Physics - Experiment · Physics 2015-03-19 ATLAS Collaboration

Machine learning-based jet classifiers are able to achieve impressive tagging performance in a variety of applications in high-energy and nuclear physics. However, it remains unclear in many cases which aspects of jets give rise to this…

High Energy Physics - Phenomenology · Physics 2024-08-20 Dimitrios Athanasakos , Andrew J. Larkoski , James Mulligan , Mateusz Ploskon , Felix Ringer

What are the symmetries of a dataset? Whereas the symmetries of an individual data element can be characterized by its invariance under various transformations, the symmetries of an ensemble of data elements are ambiguous due to Jacobian…

High Energy Physics - Phenomenology · Physics 2022-09-05 Krish Desai , Benjamin Nachman , Jesse Thaler

Jet modification in heavy-ion collisions provides microscopic access to the properties of the quark-gluon plasma. However, conventional approaches based on traditional global observables, such as \(R_{AA}\), capture limited information…

High Energy Physics - Phenomenology · Physics 2026-04-24 Leonardo Lima da Silva , Marcelo Gameiro Munhoz

A measurement of jet substructure observables is presented using $\mathrm{t\overline{t}}$ events in the lepton+jets channel from proton-proton collisions at $\sqrt{s} =$ 13 TeV recorded by the CMS experiment at the LHC, corresponding to an…

High Energy Physics - Experiment · Physics 2018-12-05 CMS Collaboration

It is a challenge for the theoretical particle physicists to perform the phenomenology of the Beyond Standard Model (BSM) theories using advanced simulations which can mimic the experimental environment at the colliders as closely as…

High Energy Physics - Phenomenology · Physics 2022-11-22 Nilanjana Kumar

Jet identification is one of the fields in high energy physics that machine learning has begun to make an impact. More often than not, convolutional neural networks are used to classify jet images with the benefit that essentially no…

High Energy Physics - Phenomenology · Physics 2019-05-16 Hui Luo , Ming-xing Luo , Kai Wang , Tao Xu , Guohuai Zhu

We compare the performance of a convolutional neural network (CNN) trained on jet images with dense neural networks (DNNs) trained on n-subjettiness variables to study the distinguishing power of these two separate techniques applied to top…

High Energy Physics - Phenomenology · Physics 2019-09-25 Liam Moore , Karl Nordström , Sreedevi Varma , Malcolm Fairbairn

In this paper, negatively inclined buoyant jets, which appear during the discharge of wastewater from processes such as desalination, are observed. To minimize harmful effects and assess environmental impact, a detailed numerical…

Machine Learning · Computer Science 2022-11-11 Marta Alvir , Luka Grbčić , Ante Sikirica , Lado Kranjčević

Jets are suppressed and modified in heavy ion collisions, which serve as powerful probes to the properties of the quark-gluon plasma (QGP). Attributed to the abundant information carried by the jet constituents and reconstructed…

High Energy Physics - Phenomenology · Physics 2023-08-22 Yi-Lun Du

Humans take advantage of real world symmetries for various tasks, yet capturing their superb symmetry perception mechanism with a computational model remains elusive. Motivated by a new study demonstrating the extremely high inter-person…

Computer Vision and Pattern Recognition · Computer Science 2017-08-29 Christopher Funk , Yanxi Liu

The wind is one of the most increasingly used renewable energy resources. Accurate and reliable forecast of wind speed is necessary for efficient power production; however, it is not an easy task because it depends upon meteorological…

Signal Processing · Electrical Eng. & Systems 2020-03-23 Aqsa Saeed Qureshi , Asifullah Khan , Muhammad Waleed Khan
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