Results 11 to 20 of about 13,014 (293)

Exploring jet substructure in semi-visible jets

open access: yesSciPost Physics, 2021
Semi-visible jets arise in strongly interacting dark sectors, where parton evolution includes dark sector emissions, resulting in jets overlapping with missing transverse momentum.
Deepak Kar, Sukanya Sinha
doaj   +1 more source

Learning to identify semi-visible jets

open access: yesJournal of High Energy Physics, 2022
We train a network to identify jets with fractional dark decay (semi-visible jets) using the pattern of their low-level jet constituents, and explore the nature of the information used by the network by mapping it to a space of jet substructure ...
Taylor Faucett   +2 more
doaj   +1 more source

Reconstructing boosted Higgs jets from event image segmentation

open access: yesJournal of High Energy Physics, 2021
Based on the jet image approach, which treats the energy deposition in each calorimeter cell as the pixel intensity, the Convolutional neural network (CNN) method has been found to achieve a sizable improvement in jet tagging compared to the traditional ...
Jinmian Li, Tianjun Li, Fang-Zhou Xu
doaj   +1 more source

Measurements of jet substructure and jet fragmentation using the ATLAS detector

open access: yesSciPost Physics Proceedings, 2022
Measurements of the internal properties of jets at the LHC interaction scale allow QCD to be studied in a new energy regime. In this talk, we discuss recent measurements of jet substructure and jet fragmentation, which were performed using data collected
Javier Llorente Merino
doaj   +1 more source

Recent progress on jet substructure theory [PDF]

open access: yesEPJ Web of Conferences, 2020
In these proceedings, we review recent theoretical progress on jet substructure at the colliders. Focusing on two observables – jet mass and groomed jet radius, we perform theoretical computations for jets measured in the single inclusive jet production ...
Kang Zhong-Bo
doaj   +1 more source

Overview of jet physics results from ALICE [PDF]

open access: yesEPJ Web of Conferences, 2020
Recent results from jet shower-shape and substructure analyses done by the ALICE collaboration in central Pb–Pb collisions at √sNN = 2.76 TeV and in pp collisions at √s = 7 TeV are reviewed.
Krizek Filip
doaj   +1 more source

Identifying quenched jets in heavy ion collisions with machine learning

open access: yesJournal of High Energy Physics, 2023
Measurements of jet substructure in ultra-relativistic heavy ion collisions suggest that the jet showering process is modified by the interaction with the quark-gluon plasma. Modifications of the hard substructure of jets can be explored with modern data-
Lihan Liu   +3 more
doaj   +1 more source

Evolution variable dependence of jet substructure [PDF]

open access: yes, 2015
Studies on jet substructure have evolved significantly in recent years. Jet substructure is essentially determined by QCD radiations and non-perturbative effects.
Sakaki, Yasuhito
core   +2 more sources

Hadronic calorimeter shower size: Challenges and opportunities for jet substructure in the superboosted regime

open access: yesPhysics Letters B, 2016
Hadrons have finite interaction size with dense material, a basic feature common to known forms of hadronic calorimeters (HCAL). We argue that substructure variables cannot use HCAL information to access the microscopic nature of jets much narrower than ...
Shikma Bressler   +4 more
doaj   +1 more source

Substructure of jets at HERA [PDF]

open access: yes, 2001
The substructure of jets produced in an exclusive and a charm-induced dijet sample in photoproduction and in charged and neutral current interactions has been studied with the ZEUS detector at HERA. Jets were identified using the longitudinally invariant
Vazquez, Monica
core   +2 more sources

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