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Related papers: Coupled Transport Equations for Quarkonium Product…

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We develop a framework of coupled transport equations for open heavy flavor and quarkonium states, in order to describe their transport inside the quark-gluon plasma. Our framework is capable of studying simultaneously both open and hidden…

High Energy Physics - Phenomenology · Physics 2021-07-22 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen A. Bass , Berndt Müller

By coupling the Boltzmann transport equations of both quarkonium and open heavy quarks, we investigate their dynamical evolution inside the quark-gluon plasma and study quarkonium production in heavy ion collisions. The Boltzmann transport…

High Energy Physics - Phenomenology · Physics 2019-02-20 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen Bass , Berndt Müller

We develop a set of coupled Boltzmann equations to describe the dynamical evolution of heavy quarks and quarkonia inside the quark-gluon plasma. The quarkonium dissociation and recombination terms are calculated from pNRQCD. Their interplay…

Nuclear Theory · Physics 2019-01-23 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen Bass , Berndt Müller

Using the open quantum system formalism and effective field theory of QCD, we derive the Boltzmann transport equation of quarkonium inside the quark-gluon plasma. Our derivation illuminates that the success of transport equations in…

High Energy Physics - Phenomenology · Physics 2021-02-03 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen A. Bass , Thomas Mehen , Berndt Müller

Transport equations have been applied successfully to describe the quarkonium evolution inside the quark-gluon plasma, which include both plasma screening effects and recombination. We demonstrate how the quarkonium transport equation is…

High Energy Physics - Phenomenology · Physics 2020-09-03 Xiaojun Yao , Weiyao Ke , Yingru Xu , Steffen Bass , Thomas Mehen , Berndt Müller

In the medium of relativistic heavy-ion collisions, dissociation of the quarkonium and their survival have been studied to understand the properties of Quark Gluon Plasma (QGP). The coupled rates of dissociation and recombination reactions…

High Energy Physics - Phenomenology · Physics 2023-02-22 Abdulla Abdulsalam , Mohsin Ilahi , Lana Alabbasi , Rafeeda Kassim

Suppression of open heavy quarks and quarkonia in heavy-ion collisions are among the most informative probes of quark-gluon plasma (QGP). Interpreting the full wealth of data obtained from the collision events requires a precise theoretical…

High Energy Physics - Phenomenology · Physics 2025-05-01 Bruno Scheihing-Hitschfeld , Xiaojun Yao

We employ the Boltzmann equation for describing hadron production from a quark-gluon plasma (QGP) in ultrarelativistic heavy-ion collisions. We propose resonance formation in quark-antiquark scattering as the dominant meson-production…

High Energy Physics - Phenomenology · Physics 2008-11-26 L. Ravagli , R. Rapp

We calculate the dissociation and recombination rates of $\Upsilon(1S)$ in quark-gluon plasma by using potential non-relativistic QCD. We then study the dynamical in-medium evolution of the $b\bar{b}-\Upsilon$ system in a periodic box via…

High Energy Physics - Phenomenology · Physics 2018-04-10 Xiaojun Yao , Berndt Müller

Suppression of open heavy flavors and quarkonia in heavy-ion collisions is among the most informative probes of the quark-gluon plasma. Interpreting the full wealth of data obtained from the collision events requires a precise understanding…

High Energy Physics - Phenomenology · Physics 2023-07-25 Govert Nijs , Bruno Scheihing-Hitschfeld , Xiaojun Yao

Quarkonium production in high-energy heavy-ion collisions remains a key probe of the quark-gluon plasma formed in these reactions, but the development of a fully integrated nonperturbative approach remains a challenge. Toward this end, we…

Nuclear Theory · Physics 2026-04-22 Biaogang Wu , Ralf Rapp

This is a theoretical overview of quarkonium production in relativistic heavy ion collisions given for the Hard Probes 2024 conference in Nagasaki. The talk focuses on the application of the open quantum system framework and the formulation…

High Energy Physics - Phenomenology · Physics 2025-05-02 Xiaojun Yao

Parton recombination has been found to be an extremely useful model to understand hadron production at the Relativistic Heavy Ion Collider. It is particularly important to explore its connections with hard processes. This article reviews…

Nuclear Theory · Physics 2008-11-26 Rainer J. Fries

We study the production of the conventional quarkonium states in ultrarelativistic heavy-ion collisions using an open quantum system framework based on the Lindblad equation. Starting from the complex-valued in-medium potential, we derive…

High Energy Physics - Phenomenology · Physics 2026-05-20 Néstor Armesto , Miguel Ángel Escobedo , Elena G. Ferreiro , Víctor López-Pardo

Many of the hadron-hadron cross sections required for the study of the dynamics of matter produced in relativistic heavy-ion collisions can be calculated using the quark-interchange model. Here we evaluate the low-energy dissociation cross…

Nuclear Theory · Physics 2014-11-18 Cheuk-Yin Wong , E. S. Swanson , T. Barnes

We calculate diffusion and hadronization of heavy quarks in high-energy heavy-ion collisions implementing the notion of a strongly coupled quark-gluon plasma in both micro- and macroscopic components. The diffusion process is simulated…

Nuclear Theory · Physics 2013-05-30 Min He , Rainer J. Fries , Ralf Rapp

The production of heavy quarkonium in heavy ion collisions has been used as an important probe of the quark-gluon plasma (QGP). Due to the plasma screening effect, the color attraction between the heavy quark antiquark pair inside a…

Nuclear Theory · Physics 2019-11-21 Xiaojun Yao

We study the spin-dependent in-medium dynamics of quarkonia by using the potential nonrelativistic QCD (pNRQCD) and the open quantum system framework. We consider the pNRQCD Lagrangian valid up to the order $\frac{r}{M^0}=r$ and…

High Energy Physics - Phenomenology · Physics 2024-11-01 Di-Lun Yang , Xiaojun Yao

Recent open quantum system studies showed that quarkonium time evolution inside the quark-gluon plasma is determined by transport coefficients that are defined in terms of a gauge invariant correlator of two chromoelectric field operators…

High Energy Physics - Phenomenology · Physics 2024-10-22 Bruno Scheihing-Hitschfeld , Xiaojun Yao

We calculate the transition between a quarkonium state and an unbound heavy quark-antiquark pair through gluo-dissociation and inelastic parton scattering using a partonic picture that interpolates between the formal limits based on…

Nuclear Theory · Physics 2019-12-17 Juhee Hong , Su Houng Lee
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