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相关论文: Determining the jet transport coefficient $\hat{q}…

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In this work, we expand the scope of the JETSCAPE framework to investigate the dependence of the jet nuclear modification factor, ${R_{AA}}$, on the jet radius parameter ($R$) for broader area jet cones, going all the way up to $R$ = 1.0.…

高能物理 - 唯象学 · 物理学 2025-07-03 Manaswini Priyadarshini , Om Shahi , Vaishnavi Sathe , Prabhakar Palni

We utilize a new framework, CUJET3.0, to deduce the energy and temperature dependence of jet transport parameter, $\hat{q}(E>10\; {\rm GeV},T)$, from a combined analysis of available data on nuclear modification factor and azimuthal…

高能物理 - 唯象学 · 物理学 2015-08-25 Jiechen Xu , Jinfeng Liao , Miklos Gyulassy

The leading jet transport coefficients $\hat{q}$ or $\hat{e}_{2}$ encode transverse or longitudinal momentum broadening of a hard parton traversing a hot medium. Understanding their temperature dependence is key to appreciating the observed…

高能物理 - 格点 · 物理学 2023-07-19 Amit Kumar , Abhijit Majumder , Ismail Soudi , Johannes H. Weber

The transport coefficient $\hat{q}$ plays a pivotal role in describing the phenomenon of jet quenching in the quark-gluon plasma (QGP) produced in ultra-relativistic nucleus-nucleus collisions. It is challenging to compute this coefficient…

核理论 · 物理学 2019-01-15 Amit Kumar , Abhijit Majumder , Chiho Nonaka

One of the key signatures of the Quark Gluon Plasma (QGP) is the energy loss of high momentum particles as they traverse the strongly interacting medium. The energy loss of these particles is governed by the jet transport coefficient…

A new model of jet quenching in nuclear collisions, CUJET3.0, is constructed by generalizing the perturbative QCD based CUJET2.0 model to include two complementary non-perturbative features of the QCD confinement cross-over phase transition…

高能物理 - 唯象学 · 物理学 2016-03-15 Jiechen Xu , Jinfeng Liao , Miklos Gyulassy

The medium-temperature $T$ dependence of the jet transport coefficient $\hat q$ was studied via the nuclear modification factor $R_{AA}(p_{\rm T})$ and elliptical flow parameter $v_2(p_{\rm T})$ for large transverse momentum $p_{\rm T}$…

高能物理 - 唯象学 · 物理学 2024-09-30 Man Xie , Han-Qing Fei , En-Ke Wang , Ben-Wei Zhang , Han-Zhong Zhang

Jet quenching, i.e. the suppression of high transverse momentum P_T hadron production in ultrarelativistic heavy-ion collisions is among the most striking experimental signatures of bulk medium formation. Efforts with the aim of extracting…

高能物理 - 唯象学 · 物理学 2010-04-07 Thorsten Renk

Within the framework of the generalized QCD factorization formalism, we perform the first global analysis of the jet transport coefficient ($\hat q$) for cold nuclear matter. The analysis takes into account the world data on transverse…

高能物理 - 唯象学 · 物理学 2021-03-03 Peng Ru , Zhong-Bo Kang , Enke Wang , Hongxi Xing , Ben-Wei Zhang

We present a global fit to single- and double-inclusive suppression data of high-$p_T$ particles in central Au+Au collisions at top RHIC energy. We also include in this analysis data on heavy quarks via their D and B meson semi-leptonic…

高能物理 - 唯象学 · 物理学 2010-01-21 Nestor Armesto , Matteo Cacciari , Tetsufumi Hirano , James L. Nagle , Carlos A. Salgado

We study the evolution and saturation of the gluon distribution function in the quark-gluon plasma as probed by a propagating parton and its effect on the computation of jet quenching or transport parameter $\hat{q}$. For thermal partons,…

高能物理 - 唯象学 · 物理学 2008-11-26 Jorge Casalderrey-Solana , Xin-Nian Wang

The modification of hard jets in the Quark Gluon Plasma (QGP) is studied using the MATTER event generator. Based on the higher twist formalism of energy loss, the MATTER event generator simulates the evolution of highly virtual partons…

核理论 · 物理学 2017-02-24 Michael Kordell , Abhijit Majumder

The formalism of jet modification in the higher twist approach is modified to describe a hard parton propagating through a hot thermalized medium. The leading order contribution to the transverse momentum broadening of a high energy (near…

核理论 · 物理学 2012-10-12 Abhijit Majumder

We study the interaction of leading jet partons in a strongly interacting quark-gluon plasma (sQGP) medium based on the effective dynamical quasi-particle model (DQPM). The DQPM describes the non-perturbative nature of the sQGP at finite…

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…

高能物理 - 唯象学 · 物理学 2024-08-05 Trambak Bhattacharyya , Eugenio Megias , Airton Deppman

We study inclusive jet suppression and modifications in the quark-gluon plasma (QGP) with a transport-based model. The model includes vacuum-like parton shower evolution at high-virtuality, a linearized transport for jet-medium…

高能物理 - 唯象学 · 物理学 2021-05-26 Weiyao Ke , Xin-Nian Wang

Measurements at the RHIC and the LHC have observed flavor dependence of single-hadron suppression, which reveal the role played by quark masses in the parton interactions with the quark-gluon plasma (QGP) medium. In this study, we explore…

核理论 · 物理学 2020-08-19 Weiyao Ke , Xin-Nian Wang , Wenkai Fan , Steffen Bass

The observed suppression of high-$p_\perp$ hadrons allows different explanations. We discuss two possible scenarios: In scenario 1, parton energy loss from scattering in the hot medium is complemented by final state interactions in the…

高能物理 - 唯象学 · 物理学 2011-04-20 S. Domdey , B. Z. Kopeliovich , H. J. Pirner

We investigate the jet-quenching parameter $\hat{q}$ for the quark-gluon plasma (QGP) for $N_c=3$, defined nonperturbatively with the Wilson loop in the light-cone (LC) coordinate, at finite temperature $(T)$. Considering the effective…

高能物理 - 唯象学 · 物理学 2014-01-21 Seung-il Nam

Based on the holographic model, which incorporates the equation of state (EoS) and baryon number susceptibility for different flavors, we calculate the drag force, jet quenching parameter, and diffusion coefficient of the heavy quark at…

高能物理 - 唯象学 · 物理学 2025-07-08 Bing Chen , Xun Chen , Xiaohua Li , Zhou-Run Zhu , Kai Zhou