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We study the connection between radiative energy loss and radiative p_T-broadening of a high-energy quark or gluon passing through QCD matter. The generalized Baier-Dokshitzer-Mueller-Peigne-Schiff-Zakharov (BDMPS-Z) formalism is used to…

高能物理 - 唯象学 · 物理学 2014-12-17 Bin Wu

The suppression of high $p_{T}$ hadron production in heavy ion collisions is thought to be due to energy loss by gluon radiation off hard partons in a QCD medium. Existing models of QCD radiative energy loss in a color-charged medium give…

核理论 · 物理学 2015-05-20 Marta Verweij

Energetic partons traveling in a strongly interacting medium lose energy by emitting radiation and through collisions with medium constituents. Non-perturbative, next-to-leading order and leading order collision kernels are implemented…

高能物理 - 唯象学 · 物理学 2022-12-13 Rouzbeh Modarresi Yazdi , Shuzhe Shi , Charles Gale , Sangyong Jeon

We report on a benchmark calculation of the in-medium radiative energy loss of low-virtuality jet partons within the EPOS3-Jet framework. The radiative energy loss is based on an extension of the Gunion-Bertsch matrix element for a massive…

核理论 · 物理学 2020-09-21 Iurii Karpenko , Joerg Aichelin , Pol Bernard Gossiaux , Martin Rohrmoser

We propose a hybrid model for medium-induced parton energy loss, in which the hard scales in the process are treated perturbatively, while the soft scales which involve strong coupling dynamics are modeled by AdS/CFT calculations. After…

高能物理 - 唯象学 · 物理学 2010-03-02 C. Marquet , T. Renk

Two-particle correlations obtained from parton showers that pass the hot and dense medium of the quark gluon plasma (QGP) can be used as an alternative observable, in addition to the combination of the nuclear modification factor $R_{AA}$…

高能物理 - 唯象学 · 物理学 2017-03-08 Martin Rohrmoser , Pol Bernard Gossiaux , Thierry Gousset , Jörg Aichelin

We develop a transport approach for heavy quarks in a quark-gluon plasma, which is based on improved binary collision rates taking into account quantum statistics, the running of the QCD coupling and an effective screening mass adjusted to…

高能物理 - 唯象学 · 物理学 2015-06-04 Alex Meistrenko , Andre Peshier , Jan Uphoff , Carsten Greiner

In the first three years of the physics program at the Relativistic Heavy Ion Collider (RHIC) a picture was established in which the suppression of hadrons at high transverse momenta (p_T) in central Au+Au collisions is explained by energy…

核实验 · 物理学 2019-08-13 Klaus Reygers

Similar to the radiative parton energy loss due to gluon bremsstrahlung, elastic energy loss of a parton undergoing multiple scattering in a finite medium is demonstrated to be sensitive to interference effect. The interference between…

核理论 · 物理学 2009-09-29 Xin-Nian Wang

In this study we evaluate the dynamical collisional energy loss of heavy quarks, their interaction rate as well as the different transport coefficients (drag and diffusion coefficients, $\hat{q}$, etc). We calculate these different…

高能物理 - 唯象学 · 物理学 2014-12-15 Hamza Berrehrah , Pol-Bernard Gossiaux , Jörg Aichelin , Wolfgang Cassing , Elena Bratkovskaya

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…

Production, elliptic flow and the nuclear modification factor of charm and bottom quarks are studied in central and non-central heavy-ion collisions at RHIC and LHC using the partonic transport model Boltzmann Approach of MultiParton…

高能物理 - 唯象学 · 物理学 2011-02-11 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

We revisit radiative parton energy loss in deeply inelastic scattering (DIS) off a large nucleus within the perturbative QCD approach. We calculate the gluon radiation spectra induced by double parton scattering in DIS without collinear…

高能物理 - 唯象学 · 物理学 2019-11-18 Yuan-Yuan Zhang , Guang-You Qin , Xin-Nian Wang

Parton propagation in dense nuclear matter results in elastic, inelastic and coherent multiple soft scattering with the in-medium color charges. Such scattering leads to calculable modifications of the hadron production cross section that…

高能物理 - 唯象学 · 物理学 2015-06-25 Ivan Vitev

The Gribov-Zwanziger prescription applied within Yang-Mills theory is demonstrated to be an efficient method for refining the theory's infrared dynamics. We study the collisional energy loss experienced by a high-energetic test parton as it…

高能物理 - 唯象学 · 物理学 2024-01-26 Manas Debnath , Ritesh Ghosh , Mohammad Yousuf Jamal , Manu Kurian , Jai Prakash

We present a computation of elastic energy loss of hard partons traversing the bulk hydrodynamical medium created in ultrarelativistic heavy-ion collisions. The model is based on perturbative Quantum Chromodynamics (pQCD) cross sections for…

高能物理 - 唯象学 · 物理学 2015-03-13 Jussi Auvinen , Kari J. Eskola , Thorsten Renk

We present empirical features of parton energy loss in nucleus-nucleus collisions at RHIC through studies of the spectra and nuclear modification factors ($R_{AA}$) for charged hadrons, neutral pions ($\pi^0$) and non-photonic electrons.…

核实验 · 物理学 2009-02-02 Gang Wang , Huan Zhong Huang

We discuss the implementation of leading-order photon production in nonequilibrium partonic transport simulations. In this framework photons are produced by microscopic scatterings, where we include the exact matrix elements of Compton…

高能物理 - 唯象学 · 物理学 2017-05-17 Moritz Greif , Florian Senzel , Heiner Kremer , Kai Zhou , Carsten Greiner , Zhe Xu

Heavy quarks are a unique probe to study the medium produced in ultra-relativistic heavy ion collisions. Within the partonic transport model Boltzmann approach to multi-parton scatterings (BAMPS) the production, energy loss and elliptic…

高能物理 - 唯象学 · 物理学 2012-04-20 Jan Uphoff , Oliver Fochler , Zhe Xu , Carsten Greiner

We study the production of pions, kaons, and (anti)protons in A Multi Phase Transport (AMPT) Model in Au+Au collisions at $\sqrt{s_{NN}}=$ 7.7, 27, and 200 GeV. We present the centrality and energy dependence of various bulk observables…

高能物理 - 唯象学 · 物理学 2020-08-24 Abhirikshma Nandi , Lokesh Kumar , Natasha Sharma