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Reconstructed jets initiated from heavy quarks provide a powerful tool to probe the properties of the quark-gluon plasma (QGP) and to explore the mass hierarchy of jet quenching. In this article, we review the recent theoretical progresses…

Nuclear Theory · Physics 2023-03-31 Sa Wang , Wei Dai , Enke Wang , Xin-Nian Wang , Ben-Wei Zhang

We propose a system of evolution equations that describe in-medium time-evolution of transverse-momentum-dependent quark and gluon fragmentation functions. Furthermore, we solve this system of equations using Monte Carlo methods. We then…

High Energy Physics - Phenomenology · Physics 2022-06-07 E. Blanco , K. Kutak , W. Placzek , M. Rohrmoser , K. Tywoniuk

Jet-induced medium excitation is a crucial part of jet interactions with the quark-gluon plasma (QGP) in relativistic heavy-ion collisions, and has recently been confirmed by experiment for the first time. Based on the AMPT model…

Nuclear Theory · Physics 2024-12-30 Ao Luo , Shanshan Cao , Guang-You Qin

Under which conditions does a jet appear as a particle--like signal from the hidden realm of quarks and gluons? Motivated by this question jet clustering conditions are formulated, in order to characterize jet clustering algorithms, which…

High Energy Physics - Phenomenology · Physics 2008-02-03 Hermann Hessling

Using the Plastino-Plastino (PP) equation, we calculate transport coefficients of the heavy-quarks traversing inside the quark-gluon plasma, and generalize their relationship with differential energy loss. The PP equation indicates…

High Energy Physics - Phenomenology · Physics 2024-08-05 Trambak Bhattacharyya , Eugenio Megias , Airton Deppman

We investigate the radiative break-up of a highly energetic quark or gluon in a high-temperature QCD plasma. Within an inertial range of momenta $T \ll \omega \ll E$, where $E$ denotes the energy of the original hard parton (jet) and $T$…

High Energy Physics - Phenomenology · Physics 2018-10-17 Yacine Mehtar-Tani , Soeren Schlichting

The characters of the angular distributions of quark jets and gluon jets with different flavors are carefully studied after introducing the cone angle of jets. The quark jets and gluon jets are identified from the 3-jet events which are…

High Energy Physics - Phenomenology · Physics 2014-10-01 Chen Gang Wei Hui-ling

We illustrate with both a Boltzmann diffusion equation and full simulations of jet propagation in heavy-ion collisions within the Linear Boltzmann Transport (LBT) model that the spatial gradient of the jet transport coefficient…

High Energy Physics - Phenomenology · Physics 2020-09-01 Yayun He , Longgang Pang , Xin-Nian Wang

The properties of quark and gluon jets, and the differences between them, are increasingly important at the LHC. However, Monte Carlo event generators are normally tuned to data from $e^+e^-$ collisions which are primarily sensitive to…

High Energy Physics - Phenomenology · Physics 2018-01-17 Daniel Reichelt , Peter Richardson , Andrzej Siodmok

Quantum chromodynamics - the theory of quarks and gluons - has been known for decades, but it is yet to be fully understood. A recent example is the prediction and experimental discovery of tetraquarks, that opened a new research field.…

I describe how lattice computations are being used to extract experimentally relevant features of the quark gluon plasma. I deal specifically with relaxation times, photon emissivity, strangeness yields, event by event fluctuations of…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sourendu Gupta

A new method to identify the gluon jet in 3-jet ``{\bf Y}'' decays of $Z^0$ is presented. The method is based on differences in particle multiplicity between quark jets and gluon jets, and is more effective than tagging by leptonic decay.…

High Energy Physics - Phenomenology · Physics 2009-10-22 Jon Pumplin

Three-particle correlations in quark and gluon jets are computed for the first time in perturbative QCD. We give results in the double logarithmic approximation and the modified leading logarithmic approximation. In both resummation…

High Energy Physics - Phenomenology · Physics 2011-09-08 Redamy Perez Ramos , Vincent Mathieu , Miguel-Angel Sanchis-Lozano

Jet quenching is a phenomenon in heavy-ion collisions arising from jet interactions with the quark-gluon plasma (QGP). Its study is complicated by the interplay of multiple physics processes that affect jet observables. In addition,…

High Energy Physics - Phenomenology · Physics 2026-05-01 Yilun Wu , Yi Chen , Julia Velkovska

The drag and diffusion coefficients are studied within the framework of Fokker-Planck dynamics for the case of a charm quark propagating in an expanding quark-gluon plasma. The space-time evolution of the nuclear matter created in the…

High Energy Physics - Phenomenology · Physics 2020-10-23 Manu Kurian , Mayank Singh , Vinod Chandra , Sangyong Jeon , Charles Gale

Jets are generated in hard interactions in high-energy nuclear collisions. Jets propagate through the quark-gluon plasma (QGP) as the jet shower evolves; their interaction with the QGP, known as jet quenching, generates observable phenomena…

Nuclear Experiment · Physics 2022-11-23 Raymond Ehlers

We extend the investigation on jet transport coefficients within the effective Dynamical QuasiParticle Model (DQPM) -- constructed for the description of non-perturbative QCD phenomena of the strongly interacting quark-gluon plasma (sQGP)…

High Energy Physics - Phenomenology · Physics 2025-02-10 Ilia Grishmanovskii , Olga Soloveva , Taesoo Song , Carsten Greiner , Elena Bratkovskaya

The jet transport coefficient $\hat{q}$ is the leading transport coefficient that controls the modification of hard jets produced in heavy-ion collisions. This coefficient is inherently non-perturbative, and hence, is challenging to compute…

Nuclear Theory · Physics 2018-11-12 Amit Kumar , Abhijit Majumder , Chiho Nonaka

Heavy ion collisions at high energies can be used as an interesting way to recreate and study the medium of the quark-gluon plasma (QGP). We particularly investigate the jets produced in hard binary collisions and their interactions with a…

High Energy Physics - Phenomenology · Physics 2020-09-11 Martin Rohrmoser , Krzysztof Kutak , Andreas van Hameren , Wiesław Płaczek , Konrad Tywoniuk

The physics of astrophysical jets can be divided into three regimes: (i) engine and launch (ii) propagation and collimation, (iii) dissipation and particle acceleration. Since astrophysical jets comprise a huge range of scales and…

High Energy Astrophysical Phenomena · Physics 2022-07-27 Eric G. Blackman , Sergey V. Lebedev