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This contribution reports preliminary jet results in ppbar collisions at sqrt(s)=1.96 TeV from the CDF and D0 experiments. The jet inclusive cross section, measured using both the Midpoint and the K_T jet clustering algorithm, is compared…

High Energy Physics - Experiment · Physics 2007-05-23 Andrea Messina

The design and performance of a newly developed cluster jet target installation for hadron physics experiments are presented which, for the first time, is able to generate a hydrogen cluster jet beam with a target thickness of above…

Instrumentation and Detectors · Physics 2011-11-03 Alexander Täschner , Esperanza Köhler , Hans-Werner Ortjohann , Alfons Khoukaz

The jet energy scale (JES) and its systematic uncertainty are determined for jets measured with the ATLAS detector using proton-proton collision data with a centre-of-mass energy of $\sqrt{s}=7$ TeV corresponding to an integrated luminosity…

High Energy Physics - Experiment · Physics 2015-01-29 ATLAS Collaboration

At the extreme energies of the Large Hadron Collider, massive particles can be produced at such high velocities that their hadronic decays are collimated and the resulting jets overlap. Deducing whether the substructure of an observed jet…

High Energy Physics - Experiment · Physics 2016-06-01 Pierre Baldi , Kevin Bauer , Clara Eng , Peter Sadowski , Daniel Whiteson

The measurement of the arrival time of a particle, such as a lepton, a photon, or a pion, reaching the detector provides valuable information. A similar measurement for a hadronic final state, however, is much more challenging as one has to…

High Energy Physics - Phenomenology · Physics 2022-01-10 Wen Han Chiu , Zhen Liu , Matthew Low , Lian-Tao Wang

Jet formation is connected most probably with matter acceleration from the vicinity of rotating magnetized bodies. It is usually related to the mass outflows and ejection from accretion disks around black holes. Problem of jet collimation…

Astrophysics · Physics 2009-11-06 G. S. Bisnovatyi-Kogan , N. V. Ardeljan , S. G. Moiseenko

Discriminating between quark- and gluon-initiated jets has long been a central focus of jet substructure, leading to the introduction of numerous observables and calculations to high perturbative accuracy. At the same time, there have been…

High Energy Physics - Phenomenology · Physics 2022-12-28 Samuel Bright-Thonney , Ian Moult , Benjamin Nachman , Stefan Prestel

To precisely measure jets over a large background such as pile up in high luminosity p+p collisions at LHC, a new generation of jet reconstruction algorithms is developed. These algorithms are also applicable to reconstruct jets in the…

Nuclear Experiment · Physics 2014-11-20 Sevil Salur

Jet classification is an important ingredient in measurements and searches for new physics at particle coliders, and secondary vertex reconstruction is a key intermediate step in building powerful jet classifiers. We use a neural network to…

High Energy Physics - Experiment · Physics 2021-07-07 Jonathan Shlomi , Sanmay Ganguly , Eilam Gross , Kyle Cranmer , Yaron Lipman , Hadar Serviansky , Haggai Maron , Nimrod Segol

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

In order to find a law characterising the decrease of velocity along a jet, five analytical methods are suggested. The first two simple models examine the variation of velocity in the presence of Newton's or Stoke's resistance. The equation…

Astrophysics · Physics 2011-09-20 Lorenzo Zaninetti

Jets produced in high-energy heavy-ion collisions are modified compared to those in proton-proton collisions due to their interaction with the deconfined, strongly-coupled quark-gluon plasma (QGP). In this work, we employ machine learning…

High Energy Physics - Phenomenology · Physics 2022-10-17 Yue Shi Lai , James Mulligan , Mateusz Płoskoń , Felix Ringer

We present a strategy to quantify the performance of jet definitions in kinematic reconstruction tasks. It is designed to make use exclusively of physical observables, in contrast to previous techniques which often used unphysical Monte…

High Energy Physics - Phenomenology · Physics 2008-12-18 Matteo Cacciari , Juan Rojo , Gavin P. Salam , Gregory Soyez

A search for pair production of up-type vector-like quarks ($T$) with a significant branching ratio into a top quark and either a Standard Model Higgs boson or a $Z$ boson is presented. The same analysis is also used to search for…

High Energy Physics - Experiment · Physics 2018-07-19 ATLAS Collaboration

Jet quenching is a well-established probe of the QGP in large collision systems such as Au+Au and Pb+Pb, but is absent in smaller p+A collisions despite the presence of collectivity. This makes it important to study its dependence on system…

Nuclear Experiment · Physics 2025-12-01 Sijie Zhang

We introduce a new jet clustering algorithm named SIFT (Scale-Invariant Filtered Tree) that maintains the resolution of substructure for collimated decay products at large boosts. The scale-invariant measure combines properties of kT and…

High Energy Physics - Phenomenology · Physics 2023-07-26 Andrew J. Larkoski , Denis Rathjens , Jason Veatch , Joel W. Walker

Jets originating from the fragmentation of quarks and gluons are the most common, and complicated, final state objects produced at hadron colliders. A precise knowledge of their energy calibration is therefore of great importance at…

High Energy Physics - Experiment · Physics 2019-08-15 D. Schouten , A. Tanasijczuk , M. Vetterli

Tracking in high-density environments, such as the core of TeV jets, is particularly challenging both because combinatorics quickly diverge and because tracks may not leave anymore individual "hits" but rather large clusters of merged…

Instrumentation and Detectors · Physics 2020-12-11 Valerio Bertacchi

We introduce a new 'quantile' analysis strategy to study the modification of jets as they traverse through a droplet of quark-gluon plasma. To date, most jet modification studies have been based on comparing the jet properties measured in…

High Energy Physics - Phenomenology · Physics 2019-09-18 Jasmine Brewer , José Guilherme Milhano , Jesse Thaler

It is generally accepted that the launching of astrophysical jets requires a large-scale magnetic field threading a central object (black hole or star) and/or its surrounding accretion disc. However, the collimation mechanism far away from…

Solar and Stellar Astrophysics · Physics 2026-03-31 Thomas Jannaud , Jonathan Ferreira , Claudio Zanni