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The suppression of the yield of high transverse momentum $p_{T}$ hadrons in heavy-ion collisions, referred to as "jet-quenching", has now developed into a comprehensive science. Jets are now used as probes of a variety of properties of the…

High Energy Physics - Phenomenology · Physics 2009-11-18 Abhijit Majumder

Deep learning techniques are currently being investigated for high energy physics experiments, to tackle a wide range of problems, with quark and gluon discrimination becoming a benchmark for new algorithms. One weakness is the traditional…

High Energy Physics - Phenomenology · Physics 2020-12-07 Jason Sang Hun Lee , Sang Man Lee , Yunjae Lee , Inkyu Park , Ian James Watson , Seungjin Yang

Large transverse momentum jets provide unique tools to study dense QCD matter in high-energy heavy-ion collisions. Results from RHIC on suppression of high transverse momentum particles in Au+Au collisions indicate a significant energy loss…

Nuclear Experiment · Physics 2008-11-26 Christof Roland , Gábor I. Veres , Krisztián Krajczár

In the first talk I discuss the usefulness of jet grooming for testing jet quenching mechanisms, and I present a calculation of soft-drop jet mass distribution in proton-proton and heavy ion collisions. In the second talk I discuss the…

High Energy Physics - Phenomenology · Physics 2019-01-25 Yang-Ting Chien

Parton energy loss in the hot QCD medium will manifest itself not only in leading hadron spectra but also in reconstructed jet productions in high-energy nucleus-nucleus collisions. In this paper we report on recent theoretical efforts in…

Nuclear Theory · Physics 2015-03-17 Ben-Wei Zhang

Jets of collimated particles serve a multitude of purposes in high energy collisions. Recently, studies of jet interaction with the quark-gluon plasma (QGP) created in high energy heavy ion collisions are of growing interest, particularly…

High Energy Physics - Phenomenology · Physics 2021-03-24 Jana Bielčíková , Raghav Kunnawalkam Elayavalli , Georgy Ponimatkin , Jörn H. Putschke , Josef Sivic

In these proceedings we report a recent calculation of the jet charge modification in heavy-ion relative to proton collisions at the LHC. Jets have played an essential role in constraining theories of in-medium parton shower evolution and…

High Energy Physics - Phenomenology · Physics 2020-09-09 Haitao Li , Ivan Vitev

The production of a strongly interacting medium in heavy-ion collisions is identified through suppression of high transverse momentum jets leading to an effect known as jet quenching. Detailed measurements of nuclear modification factors…

High Energy Physics - Experiment · Physics 2016-07-13 Raghav Kunnawalkam Elayavalli

Studies of fully-reconstructed jets in heavy-ion collisions aim at extracting thermodynamical and transport properties of hot and dense QCD matter. Recently, a plethora of new jet substructure observables have been theoretically and…

The precise reconstruction of jet transverse momenta in heavy-ion collisions is a challenging task. A major obstacle is the large number of uncorrelated (mainly) low-$p_\mathrm{T}$ particles overlaying the jets. Strong region-to-region…

Nuclear Experiment · Physics 2019-09-05 Rüdiger Haake

These proceedings present a brief overview of the main results on jet-modifications in heavy ion collisions at RHIC. In heavy ion collisions, jets are studied using single hadron spectra and di-hadron correlations with a high-\pt{} trigger…

Nuclear Experiment · Physics 2008-08-07 M. van Leeuwen

Anomaly detection methods used in a recent search for new phenomena by CMS at the CERN LHC are presented. The methods use machine learning to detect anomalous jets produced in the decay of new massive particles. The effectiveness of these…

High Energy Physics - Experiment · Physics 2025-12-24 CMS Collaboration

In the established paradigm of jet quenching in relativistic heavy-ion collisions, jets from initial hard parton scatterings are suppressed due to their interaction with the quark-gluon plasma (QGP) as they traverse the hot medium, serving…

Nuclear Theory · Physics 2026-01-21 Peng Jing , Yichao Dang , Yang He , Shanshan Cao , Li Yi , Xin-Nian Wang

Machine learning techniques are increasingly being applied toward data analyses at the Large Hadron Collider, especially with applications for discrimination of jets with different originating particles. Previous studies of the power of…

High Energy Physics - Phenomenology · Physics 2017-06-28 Kaustuv Datta , Andrew Larkoski

Jet studies provide an experimental method to explore the features of energy loss in the strongly interacting quark-gluon plasma. Recent jet results from 2.76 TeV PbPb and pp collisions measured with the CMS detector are presented. Jets in…

Nuclear Experiment · Physics 2014-09-02 Marguerite B. Tonjes

The characterization of the jet substructure can give insight into the microscopic nature of the modification induced on high-momentum partons by the Quark-Gluon Plasma that is formed in ultra-relativistic heavy-ion collisions. Jet shapes…

Nuclear Experiment · Physics 2019-08-21 D. Caffarri

Jet quenching, the modification of jets by the quark-gluon plasma in heavy-ion collisions, provides a sensitive probe of the properties of the medium. A jet-by-jet discrimination study between proton-proton and lead-lead jets using energy…

High Energy Physics - Phenomenology · Physics 2025-11-03 João A. Gonçalves

Deep learning is having a profound impact in many fields, especially those that involve some form of image processing. Deep neural networks excel in turning an input image into a set of high-level features. On the other hand, tomography…

Machine Learning · Statistics 2017-01-03 Francisco A. Matos , Diogo R. Ferreira , Pedro J. Carvalho , JET Contributors

The different modifications of quark- and gluon-initiated jets in the quark-gluon plasma (QGP) produced in heavy-ion collisions is a long-standing question that has not yet received a definitive answer from experiments. In particular, the…

High Energy Physics - Phenomenology · Physics 2023-02-01 Yueyang Ying , Jasmine Brewer , Yi Chen , Yen-Jie Lee

Energy correlators have recently attracted significant attention in the study of heavy ion collisions due to their potential to robustly connect experimental measurements with an underlying quantum field theoretic description. While…

High Energy Physics - Phenomenology · Physics 2025-03-19 João Barata , Ian Moult , Andrey V. Sadofyev , João M. Silva
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