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In this brief review, I summarize the new developments on the description of gluon radiation by energetic quarks traversing a medium as well as the observable consequences in high-energy heavy ion collisions. Information about the initial…

High Energy Physics - Phenomenology · Physics 2009-11-10 C. A. Salgado

We compute the double differential inclusive spectrum for the emission of a soft gluon from a color-singlet $q\bar q$ pair traversing a dense QCD medium. Our results extend the existing literature by simultaneously incorporating both single…

High Energy Physics - Phenomenology · Physics 2025-12-09 Matvey V. Kuzmin , João M. Silva

We investigate the color coherence pattern between initial and final state radiation in the presence of a QCD medium. We derive the medium-induced gluon spectrum of an "asymptotic" parton which suffers a hard scattering and subsequently…

High Energy Physics - Phenomenology · Physics 2012-10-03 Néstor Armesto , Hao Ma , Mauricio Martinez , Yacine Mehtar-Tani , Carlos A. Salgado

Medium modifications of parton fragmentation provide a novel tomographic tool for the study of the hot and dense matter created in ultrarelativistic nucleus-nucleus collisions. Their quantitative analysis, however, is complicated by the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Carlos A. Salgado , Urs Achim Wiedemann

We present a derivation of the medium-induced gluon radiation spectrum beyond the current limitation of soft gluon emission. Making use of the path integral approach to describe the propagation of high-energy particles inside a medium, we…

High Energy Physics - Phenomenology · Physics 2012-11-08 Liliana Apolinário , Néstor Armesto , Carlos A. Salgado

We report on recent calculations of the medium-induced gluon radiation off hard partons. The employed path-integral formalism reduces in limiting cases to the main ``jet quenching'' results of the existing literature. Moreover, it describes…

High Energy Physics - Phenomenology · Physics 2009-11-07 Urs Achim Wiedemann

We derive the in-medium gluon radiation spectrum off a quark within the path integral formalism at finite energies, including all next-to-eikonal corrections in the propagators of quarks and gluons. Results are computed for finite formation…

High Energy Physics - Phenomenology · Physics 2015-02-25 Liliana Apolinário , Néstor Armesto , José Guilherme Milhano , Carlos A. Salgado

We compute the spectrum of gluons emitted by a highly energetic quark inside a flowing QCD medium, focusing on the soft gluon limit at first order in the opacity expansion. Specifically, we derive the leading energy-suppressed corrections…

High Energy Physics - Phenomenology · Physics 2024-06-24 Matvey V. Kuzmin , Xoán Mayo López

Jets produced in relativistic heavy-ion collisions are modified by their interactions with the quark-gluon plasma (QGP), making jet substructure observables sensitive probes of QGP dynamics. A quantitative description of these modifications…

High Energy Physics - Phenomenology · Physics 2026-05-07 Carlota Andres , Fabio Dominguez

When an energetic parton propagates in a hot and dense QCD medium it loses energy by elastic scatterings or by medium-induced gluon radiation. The gluon radiation spectrum is suppressed at high frequency due to the LPM effect and…

High Energy Physics - Phenomenology · Physics 2020-12-02 João Barata , Yacine Mehtar-Tani

QCD jets produced in heavy-ion collisions at LHC or RHIC energies partially evolve inside the produced hot and dense quark gluon plasma, offering unique opportunities to study QCD splitting processes in different backgrounds. Induced…

High Energy Physics - Phenomenology · Physics 2021-06-17 João Barata , Fabio Domínguez , Carlos Salgado , Víctor Vila

The color coherence effects in the medium modification to the initial state radiation are studied via a simple setup which allows these effects to be pronounced. The medium-induced gluon radiation spectrum off a hard quark which suffers a…

High Energy Physics - Phenomenology · Physics 2012-11-08 Néstor Armesto , Hao Ma , Mauricio Martínez , Yacine Mehtar-Tani , Carlos A. Salgado

In the preceding paper, a rigorous three-dimensional relativistic equation for two-gluon bound states was derived from the QCD with massive gluons and represented in the angular momentum representation. In order to apply this equation to…

High Energy Physics - Phenomenology · Physics 2008-11-26 Jian-Xing Chen , Jun-Chen Su

Detailed insight into the interplay between parton energy loss and the way deconfined medium created in heavy-ion collisions expands is of great importance for improving the understanding of the jet quenching phenomenon. In this paper we…

High Energy Physics - Phenomenology · Physics 2020-07-24 Souvik Priyam Adhya , Carlos A. Salgado , Martin Spousta , Konrad Tywoniuk

Measurements of inclusive hadron suppression and di-hadron azimuthal correlations have provided important insights into jet quenching in hot QCD matter. However, they do not provide access to the energy of the hard scattering and are…

Nuclear Experiment · Physics 2009-11-18 Elena Bruna

I look at the renormalization of the medium structure function and a medium induced jet function in a factorized cross section for jet substructure observables in Heavy Ion collisions. This is based on the formalism developed in…

High Energy Physics - Phenomenology · Physics 2023-04-11 Varun Vaidya

The MLLA single inclusive distribution inside one high energy (gluon) jet at small x is estimated by the steepest descent method. Its analytical expression is obtained outside the "limiting spectrum". It is then used to evaluate 2-particle…

High Energy Physics - Phenomenology · Physics 2009-11-11 Redamy Perez Ramos

At measurements of gamma-radiation spectra from ultra-relativistic electrons in periodic structures, pileup of events in the calorimeter may cause significant deviation of the detector signal from the classically evaluated spectrum. That…

Accelerator Physics · Physics 2015-06-17 M. V. Bondarenco

Full jet reconstruction in heavy-ion collisions enables a complete study of the modification of jet structure due to energy loss in hot and dense QCD matter, but is challenging due to the high multiplicity environment. The STAR and PHENIX…

Nuclear Experiment · Physics 2009-11-26 Jan Kapitan

Comprehensive understanding of medium-induced radiative energy loss is of a paramount importance in describing observed jet quenching in heavy-ion collisions. In this work, we have calculated the medium-modified gluon splitting rates for…

High Energy Physics - Phenomenology · Physics 2021-02-18 Souvik Priyam Adhya , Carlos A. Salgado , Martin Spousta , Konrad Tywoniuk