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High energetic particles traversing a dense medium lose a sizable part of their energy in form of gluon radiation. As a result, the rate of high-$p_t$ particles is expected to be suppressed in heavy ion collisions with respect to the proton…

高能物理 - 唯象学 · 物理学 2007-05-23 C. A. Salgado

Angular correlations between heavy-flavour decay electrons and charged particles at mid-rapidity ($|\eta| < 0.8$) are measured in p-Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The analysis is carried out for the 0-20% (high) and…

核实验 · 物理学 2019-05-30 ALICE Collaboration

Recent theoretical developments in the description of jet evolution in the quark gluon plasma have allowed to account for the effects of hydrodynamic gradients in the medium modified jet spectra. These constitute a crucial step towards…

高能物理 - 唯象学 · 物理学 2023-08-03 João Barata , José Guilherme Milhano , Andrey V. Sadofyev

In high energy nuclear collisions, heavy flavor tagged jets are useful hard probes to study the properties of the quark-gluon plasma (QGP). In this talk, we present the first theoretical prediction of the $D^0$ meson radial distributions in…

核理论 · 物理学 2022-08-23 Sa Wang , Wei Dai , Ben-Wei Zhang , Enke Wang

Hard-scattered partons provide an ideal probe for the study of the Quark-Gluon Plasma because they are produced prior to the formation of the QCD medium in heavy-ion collisions. Jet production is therefore susceptible to modifications…

核实验 · 物理学 2019-08-13 Salvatore Aiola

In jet quenching, a hard QCD parton, before fragmenting into a jet of hadrons, deposits a fraction of its energy in the medium, leading to suppressed production of high-$p_T$ hadrons. Assuming that the deposited energy quickly thermalizes,…

核理论 · 物理学 2008-11-26 A. K. Chaudhuri

We review selected results from a recent in-depth study of jet shapes and jet cross sections in ultra-relativistic reactions with heavy nuclei at the LHC arXiv:0810.2807 [hep-ph]. We demonstrate that at the highest collider energies these…

高能物理 - 唯象学 · 物理学 2009-07-22 Ivan Vitev , Ben-Wei Zhang , Simon Wicks

In high-energy heavy-ion collisions, a nearly perfect fluid is formed, known as the strongly coupled quark-gluon plasma (QGP). After a short thermalization period, the evolution of this medium can be described by the equations of…

高能物理 - 唯象学 · 物理学 2026-04-10 Gábor László Kasza

We show that recent measurements of substructure-dependent jet suppression constrain the value of the resolution length of the droplets of quark-gluon plasma (QGP) formed in heavy ion collisions. This resolution length, $L_{\rm res}$, is…

高能物理 - 唯象学 · 物理学 2025-09-12 Arjun Srinivasan Kudinoor , Daniel Pablos , Krishna Rajagopal

Jets are produced from hard scatterings in the early stages of heavy-ion collisions, therefore they can be exploited as probes for medium tomography. Such high-$p_T$ partons are expected to suffer energy loss in the hot and dense nuclear…

核实验 · 物理学 2019-08-13 Elena Bruna

We compare calculations of jet quenching observables at sqrt s = 2.76 ATeV to preliminary LHC data from weak-coupling pQCD and strong-coupling AdS/CFT drag energy loss models. Rigorously constrained to sqrt s = 200 AGeV RHIC pi^0…

高能物理 - 唯象学 · 物理学 2015-05-30 W. A. Horowitz

The jet quenching parameter $\hat{q}$ is analyzed for a quark jet propagating in an anisotropic plasma. The momentum anisotropy is calculated at high temperature of the underlying quark-gluon plasma. $\hat{q}$ is explicitly estimated in…

高能物理 - 唯象学 · 物理学 2009-10-16 Rolf Baier , Yacine Mehtar-Tani

We calculate the azimuthal anisotropy $v_2$ extracted from the large $\Delta y$ region of two particle $\Delta y-\Delta\phi$ correlations in a two-jet system, in which, the masses of the jets are not negligible compared to their energies.…

高能物理 - 唯象学 · 物理学 2019-07-16 Karoly Urmossy

Jet quenching is the process of color-charged partons losing energy via interactions with quark-gluon plasma droplets created in heavy-ion collisions. The collective expansion of such droplets is well described by viscous hydrodynamics.…

核实验 · 物理学 2023-09-21 ATLAS Collaboration

The measured transverse momentum spectra and HBT correlations of bulk (i.e. low $p_T$) matter can be well explained by assuming that the soft sector of particles produced in ultrarelativistic heavy-ion collisions is (approximately)…

高能物理 - 唯象学 · 物理学 2009-11-11 Thorsten Renk , Jorg Ruppert

Recent data on the high-pT pion nuclear modification factor, $R_{AA}(p_T)$, and its elliptic azimuthal asymmetry, $v_2(p_T)$, from RHIC/BNL and LHC/CERN are analyzed in terms of a wide class of jet-energy loss models coupled to different…

高能物理 - 唯象学 · 物理学 2015-06-19 Barbara Betz , Miklos Gyulassy

Recent developments in the many-body perturbative QCD theory of inelastic parton interactions in dense nuclear matter and the phenomenology of strongly-interacting hard probes in heavy ion collisions are reviewed. We highlight the progress…

高能物理 - 唯象学 · 物理学 2008-11-26 Ivan Vitev

Azimuthal anisotropy measurements for charged hadrons, characterized by the second order Fourier coefficient $v_2$, are used to investigate the path length ($L$) and transverse momentum ($p_T$) dependent jet quenching patterns of the QCD…

核实验 · 物理学 2012-03-19 Roy A. Lacey , N. N. Ajitanand , J. M. Alexander , J. Jia , A. Taranenko

Recent data on the nuclear modification factor $R_{AA}$ of jet fragments in 2.76 ATeV Pb+Pb collisions at the Large Hadron Collider (LHC) indicate that the jet-medium coupling in a Quark-Gluon Plasma (QGP) is reduced at LHC energies and not…

核理论 · 物理学 2013-05-30 Barbara Betz , Miklos Gyulassy

The experimental results on transverse momentum azimuthal hadron correlations at RHIC have opened a rich field for parton energy loss analysis in heavy-ion collisions. Recently, a considerable amount of work has beendevoted to study the…

高能物理 - 唯象学 · 物理学 2009-08-05 Alejandro Ayala , Eleazar Cuautle , Isabel Dominguez , Antonio Ortiz , Guy Paic