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The leading order $\alpha_s$ effect in jet quenching corresponds to the broadening of the jet's transverse momentum, due to the multiple interactions with the underlying medium. A complete understanding of momentum broadening is critical…

High Energy Physics - Phenomenology · Physics 2021-10-07 João Barata , Carlos A. Salgado

The merger of two magnetized compact objects, such as neutron stars, forms a compact object which may launch a relativistic and collimated jet. Numerical simulations of the process show that a dense and highly magnetized medium surrounds…

High Energy Astrophysical Phenomena · Physics 2024-06-17 Leonardo Garcia-Garcia , Diego Lopez-Camara , Davide Lazzati

Underexpanded jets are present in various engineering applications; in recent years, they have gained special attention because of the development of gas-fueled propulsion systems. In these apparatuses, the direct injection of fuels such as…

Fluid Dynamics · Physics 2025-09-15 Francesco Duronio , Andrea Di Mascio

We study the jet quenching parameter $\hat q$ in the initial pre-equilibrium stages of heavy-ion collisions using the QCD kinetic theory description of the anisotropic quark-gluon plasma. This allows us to smoothly close the gap in the…

High Energy Physics - Phenomenology · Physics 2025-06-25 Kirill Boguslavski , Aleksi Kurkela , Tuomas Lappi , Florian Lindenbauer , Jarkko Peuron

In this work, we study the effective running coupling constant of heavy quark pair and jet quenching parameter in the spinning background. Ultra-locally, the boosted fluid is described by the boosted parameter and dual to a globally…

High Energy Physics - Phenomenology · Physics 2026-03-03 Zhou-Run Zhu , Sheng Wang , Man-Li Tian , Defu Hou

The quenching of jets (and high-pT particle spectra) observed in heavy-ion collisions is interpreted as due to the energy lost by hard partons crossing the Quark Gluon Plasma. Here we review recent efforts to include in its modeling…

High Energy Physics - Phenomenology · Physics 2012-10-02 A. Beraudo

The ALICE Collaboration presents a new suite of jet substructure measurements in Pb-Pb and pp collisions at a center-of-mass energy per nucleon pair $\sqrt{s}_{\rm NN} = 5.02$ TeV. These measurements provide access to the internal structure…

Nuclear Experiment · Physics 2025-05-19 ALICE Collaboration

The longitudinal invariance of jet-induced peaks in two-particle correlation functions from relativistic lead-lead collisions is experimentally explored. The data were collected at a center-of-mass energy per nucleon pair of 5.02 TeV in…

Nuclear Experiment · Physics 2026-03-17 CMS Collaboration

In this work, we study the jet momentum broadening in an inhomogeneous dense QCD medium. The transverse profile of this nuclear matter is described within a gradient expansion, and we focus on the leading gradient contributions. The leading…

High Energy Physics - Phenomenology · Physics 2022-11-09 João Barata , Andrey V. Sadofyev , Carlos A. Salgado

Comparing four different (ideal and viscous) hydrodynamic models for the evolution of the medium created in 200 AGeV Au-Au collisions, combined with two different models for the path length dependence of parton energy loss, we study the…

High Energy Physics - Phenomenology · Physics 2011-02-28 Thorsten Renk , Hannu Holopainen , Ulrich Heinz , Chun Shen

We compute the jet quenching parameter $\hat q$ of QCD plasma in the presence of strong magnetic field in both weakly and strongly coupled regimes. In weakly coupled regime, we compute $\hat q$ in perturbative QCD at complete leading order…

High Energy Physics - Phenomenology · Physics 2016-10-27 Shiyong Li , Kiminad A. Mamo , Ho-Ung Yee

We study coherent structures in subsonic turbulent jets subject to a flight stream. A thorough characterisation of the effects of a flight stream on the turbulent field was recently performed by Maia et al. (2023) and fluctuation energy…

Fluid Dynamics · Physics 2023-11-10 Igor A. Maia , Liam Heidt , Ethan Pickering , Tim Colonius , Peter Jordan , Guillaume Brès

Jets from early stages of heavy-ion collisions undergo modified showering in quark-gluon plasma (QGP) relative to vacuum due to jet-medium interactions, which can be measured using observables like differential jet shape and generalized…

Nuclear Experiment · Physics 2024-03-22 Tanmay Pani

Jet suppression and modification is a hallmark feature of heavy-ion collisions. This can be attributed to an accumulated set of effects, including radiative and elastic energy loss and reabsorption of thermalized energy within the jet cone,…

High Energy Physics - Phenomenology · Physics 2024-12-11 Alexandre Falcão , Konrad Tywoniuk

The angular structure of collisional and radiative energy losses of a hard parton jet propagating through the quark-gluon plasma is analyzed. The possibility to observe the energy losses of quark- and gluon-initiated jets in dense…

High Energy Physics - Phenomenology · Physics 2016-09-06 I. P. Lokhtin

We carry out a detailed study of medium modifications on momentum and angular correlations between a large transverse momentum hadron and a $Z/\gamma$ trigger in relativistic heavy-ion collisions within a perturbative QCD parton model…

High Energy Physics - Phenomenology · Physics 2024-01-01 Zhan Gao , Lin Chen , Peng-Hui Hu , Man Xie , Han-Zhong Zhang

We discuss the role of collisional energy loss on high $p_T$ photon data measured by PHENIX collaboration by calculating photon yield in jet-plasma interaction. The phase space distribution of the participating jet is dynamically evolved by…

High Energy Physics - Phenomenology · Physics 2015-03-17 Lusaka Bhattacharya , Pradip Roy

The energy loss of high-p_T partons provides insight into the transport properties of the medium created in relativistic heavy ion collisions. Evidence for this energy loss was first experimentally established through observation of…

High Energy Physics - Experiment · Physics 2019-08-13 Martin Spousta

We propose a new implementation of medium effects in jet structures in which a modification of the splitting function is included at every step in the typical final state parton shower. Although the main application of this new formalism…

High Energy Physics - Phenomenology · Physics 2009-11-13 Carlos A. Salgado

We present a new study of jet interactions in the quark-gluon plasma created in high-energy heavy-ion collisions, using a multistage event generator within the JETSCAPE framework. We focus on medium-induced modifications in the rate of…