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We study radiative $p_{\perp}$-broadening of high energy quarks passing through hot and cold QCD matter. With $L$ the length of the matter and $l_{0}$ the size of constituents of the matter we find $\avg{p_{\perp}^{2}}$ has both double…

High Energy Physics - Phenomenology · Physics 2013-09-05 Tseh Liou , A. H. Mueller , Bin Wu

A study of collective behavior in heavy ion collisions provides one of the most sensitive and promising probes for investigation of possible formation of new extreme state of strong interacting matter and elucidating its properties.…

Nuclear Experiment · Physics 2008-09-19 V. A. Okorokov

Measurements of jet substructure in ultra-relativistic heavy-ion collisions indicate that interactions with the quark-gluon plasma quench the jet showering process. Modern data-driven methods have shown promise in probing these…

High Energy Physics - Phenomenology · Physics 2024-12-02 Umar Sohail Qureshi , Raghav Kunnawalkam Elayavalli

We calculate dilepton production rates from a fireball adapted to the kinematical conditions realized in ultrarelativistic heavy ion collisions over a broad range of beam energies. The freeze-out state of the fireball is fixed by hadronic…

High Energy Physics - Phenomenology · Physics 2009-11-07 T. Renk , R. A. Schneider , W. Weise

Measurements of jet suppression in PbPb collisions by the ATLAS Collaboration are reported. The production of inclusive jet yields as a function of jet pt, collision centrality and jet size parameter R are measured and presented through the…

Nuclear Experiment · Physics 2019-08-21 Aaron Angerami

The azimuthal anisotropy of particles associated with jets (jet particles) at midrapidity is measured for the first time in p-Pb and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV down to transverse momentum ($p_{\rm T}$) of 0.5 GeV/$c$…

Nuclear Experiment · Physics 2024-10-29 ALICE Collaboration

Measurements of jet substructure in Pb+Pb collisions provide key insights into the mechanism of jet quenching in the hot and dense QCD medium created in these collisions. This Letter presents a measurement of the suppression of large-radius…

Nuclear Experiment · Physics 2025-12-10 ATLAS Collaboration

[Background:] A significant quenching of high energy jets was observed in the heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC) facility, and is now confirmed at the Large Hadron Collider (LHC) facility. The RHIC plus LHC…

Nuclear Theory · Physics 2014-02-05 Xilin Zhang , Jinfeng Liao

The scaling property of large-$p_\perp$ hadron suppression, $R_{\rm{AA}}(p_\perp)$, measured in heavy ion collisions at RHIC and LHC leads to the determination of the average parton energy loss $\langle \epsilon \rangle$ in quark-gluon…

High Energy Physics - Phenomenology · Physics 2022-12-05 François Arleo , Guillaume Falmagne

Suppression of high $p_T$ hadron spectra in high-energy heavy-ion collisions at different energies is studied within a pQCD parton model incorporating medium induced parton energy loss. The $p_T$ dependence of the nuclear modification…

Nuclear Theory · Physics 2009-11-10 Xin-Nian Wang

We build up a model to reproduce the experimentally measured $R_{AA}$ of $J/\psi$ near midrapidty in Au+Au collision at $\sqrt{s_{NN}}=200$ GeV. The model takes into account the $J/\psi$ suppression from the quark-gluon plasma and hadron…

Nuclear Theory · Physics 2010-05-28 Taesoo Song , Woosung Park , Su Houng Lee

We calculate the leading corrections to jet momentum broadening and medium-induced branching that arise from the velocity of the moving medium at first order in opacity. These results advance our knowledge of jet quenching and demonstrate…

High Energy Physics - Phenomenology · Physics 2022-01-24 Andrey V. Sadofyev , Matthew D. Sievert , Ivan Vitev

We present the first comparisons of experimental data with phenomenological results from 3+1d quasiparticle anisotropic hydrodynamics (aHydroQP). We compare charged-hadron multiplicity, identified-particle spectra, identified-particle…

Nuclear Theory · Physics 2017-08-02 Mubarak Alqahtani , Mohammad Nopoush , Radoslaw Ryblewski , Michael Strickland

Jets are expected to play a prominent role in the ongoing efforts to characterize the hot and dense QCD medium created in ultrarelativistic heavy ion collisions. The success of this program depends crucially on the existence of a full…

High Energy Physics - Phenomenology · Physics 2013-04-15 Y. Mehtar-Tani , J. G. Milhano , K. Tywoniuk

We derive and analyze a dispersion relation for the growth rate of collisionless tearing modes, driven by electron inertia and accounting for equilibrium electron temperature anisotropy in a strong guide field regime. For this purpose, a…

Plasma Physics · Physics 2024-06-19 Camille Granier , Emanuele Tassi , Dario Borgogno , Daniela Grasso

We have calculated jet shapes in low $Q^2$ $ep$ and $p\overline{p}$ collisions in perturbation theory at order $\alpha_s^3$ for the hard parton-parton processes. For the $\gamma p$ process resolved and direct contributions are superimposed.…

High Energy Physics - Phenomenology · Physics 2016-08-24 M. Klasen , G. Kramer

The present article is the follow up work of, Phys.\ Rev.\ D {\bf 94}, 094006 (2016), where we have extended the study of quarkonia dissociation in (momentum) anisotropic hot QCD medium. As evident by the experimentally observed collective…

Nuclear Theory · Physics 2018-05-15 Mohammad Yousuf Jamal , Indrani Nilima , Vinod Chandra , Vineet Kumar Agotiya

We propose a novel definition of a holographic light hadron jet and consider the phenomenological consequences, including the very first fully self-consistent, completely strong-coupling calculation of the jet nuclear modification factor…

High Energy Physics - Theory · Physics 2014-11-17 R. Morad , W. A. Horowitz

The collective modes of QCD at temperatures and densities above its phase-transition are analyzed for isotropic systems as well as for systems having an anisotropy in momentum-space using the HTL approximation. For isotropic systems,…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul Romatschke

The AMY formalism is widely used to describe the transport coefficients of asymptotically hot and dense QCD matter, such as shear viscosity $\eta$. In literature prior to AMY, the viscosity of an asymptotically hot QCD plasma was expressed…

Nuclear Theory · Physics 2024-10-22 Noah M. MacKay