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Related papers: Early evolution constrained by high-$p_T$ QGP tomo…

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The scarce knowledge of the initial stages of quark-gluon plasma before the thermalization is mostly inferred through the low-$p_\perp$ sector. We propose a complementary approach in this report - the use of high-$p_\perp$ probes' energy…

High Energy Physics - Phenomenology · Physics 2022-03-23 Bojana Ilic , Dusan Zigic , Marko Djordjevic , Magdalena Djordjevic

We explore to what extent, and how, high-$p_\perp$ data and predictions reflect the shape and anisotropy of the QCD medium formed in ultrarelativistic heavy-ion collisions. To this end, we use our recently developed DREENA-A framework,…

Nuclear Theory · Physics 2022-10-26 Stefan Stojku , Jussi Auvinen , Lidija Zivkovic , Pasi Huovinen , Magdalena Djordjevic

Dynamical energy loss formalism allows generating state-of-the-art suppression predictions in finite size QCD medium, employing a sophisticated model of high-$p_\perp$ parton interactions with QGP. We here report a major step of introducing…

Nuclear Theory · Physics 2019-03-12 Dusan Zigic , Igor Salom , Jussi Auvinen , Marko Djordjevic , Magdalena Djordjevic

Data driven studies of heavy-ion results has played a big role in highlighting interesting features of these complex systems. In this proceeding, a simple QGP-brick interpretation of the $R_{\rm AA}$ and $v_{2}$ at high $p_{\rm T}$ ($p_{\rm…

High Energy Physics - Phenomenology · Physics 2017-01-25 Peter Christiansen

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)…

High Energy Physics - Phenomenology · Physics 2009-11-11 Thorsten Renk , Jorg Ruppert

Heavy flavor observables provide valuable information on the properties of the hot and dense Quark-Gluon Plasma (QGP) created in ultra-relativistic nucleus-nucleus collisions. Various microscopic models have successfully described many of…

Understanding properties of Quark-Gluon Plasma requires an unbiased comparison of experimental data with theoretical predictions. To that end, we developed the dynamical energy loss formalism which, in distinction to most other methods,…

Traditionally, low-pT sector is used to infer the features of initial stages before QGP thermalization. On the other hand, recently acquired wealth of high-pT experimental data paves the way to utilize the high-pT particles energy loss in…

High Energy Physics - Phenomenology · Physics 2020-07-01 Dusan Zigic , Bojana Ilic , Marko Djordjevic , Magdalena Djordjevic

We investigate the effects of pre-hydrodynamic evolution on final-state observables in heavy-ion collisions using state-of-the art event simulations coupled to different pre-hydrodynamic scenarios, which include the recently-developed…

The suppression of high-$p_\perp$ particles is one of the main signatures of parton energy loss during its passing through the QGP medium, and is reasonably reproduced by different theoretical models. However, a decisive test of the…

Nuclear Theory · Physics 2021-02-24 Stefan Stojku , Bojana Ilic , Marko Djordjevic , Magdalena Djordjevic

We present a fully optimised framework DREENA-A based on a state-of-the-art energy loss model. The framework can include any, in principle arbitrary, temperature profile within the dynamical energy loss formalism. Thus, 'DREENA' stands for…

Nuclear Theory · Physics 2022-12-01 Dusan Zigic , Igor Salom , Jussi Auvinen , Pasi Huovinen , Magdalena Djordjevic

Heavy quark observables are applied to probe the initial energy density distribution with violation of longitudinal boost invariance produced in relativistic heavy-ion collisions. Using an improved Langevin model coupled to a…

Nuclear Theory · Physics 2023-01-25 Ze-Fang Jiang , Shanshan Cao , Wen-Jing Xing , Xiaowen Li , Ben-Wei Zhang

We study whether it is possible to use high-$p_\perp$ data/theory to constrain the temperature dependence of the shear viscosity over entropy density ratio $\eta/s$ of the matter formed in ultrarelativistic heavy-ion collisions at the BNL…

High Energy Physics - Phenomenology · Physics 2023-11-14 Bithika Karmakar , Dusan Zigic , Igor Salom , Jussi Auvinen , Pasi Huovinen , Marko Djordjevic , Magdalena Djordjevic

The strong longitudinal expansion characteristic of heavy-ion collisions leads to universal attractor behavior of the resulting drop of quark-gluon plasma (QGP) already at very early times. Assuming approximate boost invariance and…

Nuclear Theory · Physics 2024-12-17 Xin An , Michał Spaliński

High $p_\perp$ theory and data are commonly used to study high $p_\perp$ parton interactions with QGP, while low $p_\perp$ data and corresponding models are employed to infer QGP bulk properties. On the other hand, with a proper description…

In this paper, we presented our recently developed DREENA-C framework, which is a fully optimized computational suppression procedure based on our state-of-the-art dynamical energy loss formalism in constant temperature finite size QCD…

Nuclear Theory · Physics 2018-05-10 Dusan Zigic , Igor Salom , Jussi Auvinen , Marko Djordjevic , Magdalena Djordjevic

Understanding the temperature dependence of the specific shear viscosity $(\eta/s)$ is crucial for characterizing the properties of the QCD matter produced in ultrarelativistic heavy-ion collisions. Since, low-$p_\perp$ theory and data are…

High Energy Physics - Phenomenology · Physics 2025-12-30 Bithika Karmakar , Dusan Zigic , Igor Salom , Jussi Auvinen , Pasi Huovinen , Marko Djordjevic , Magdalena Djordjevic

We show, through analytic arguments, numerical calculations, and comparison with experimental data, that the ratio of the high-p_T observables v_2/(1-R_AA) reaches a well-defined saturation value at high p_T, and that this ratio depends…

High Energy Physics - Phenomenology · Physics 2019-10-01 Magdalena Djordjevic , Stefan Stojku , Marko Djordjevic , Pasi Huovinen

Heavy-ion collisions undergo various stages in their evolution and it is crucial to disentangle the initial- and final-stage effects. In this work, we report measurements of two types of observables: (i) charge-dependent directed flow…

Nuclear Experiment · Physics 2025-03-26 Aditya Prasad Dash

While experimental observations, such as the mass hierarchy effect, are attributed and analyzed within radiative models, their interpretation crucially depends on collisional energy loss contribution, which is often neglected in such…

High Energy Physics - Phenomenology · Physics 2022-07-20 Bojana Ilic , Magdalena Djordjevic
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