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Quarkonium suppression in relativistic heavy ion collisions has been studied experimentally for decades to probe the properties of the quark-gluon plasma. For this purpose, complete theoretical understanding of the time evolution of…

High Energy Physics - Phenomenology · Physics 2022-01-20 Xiaojun Yao

In relativistic heavy ion collisions at RHIC and the LHC, a quark gluon plasma (QGP) is created for a short duration of about 10fm/c. Quarkonia (bound states of $c\bar{c}$ and $b\bar{b}$) are sensitive probes of this phase on length scales…

High Energy Physics - Phenomenology · Physics 2021-06-30 Rishi Sharma

The melting of a heavy quark-antiquark bound state depends on the screening phenomena associated with the binding energy, as well as scattering phenomena associated with the imaginary part of the potential. We study the imaginary part of…

High Energy Physics - Theory · Physics 2014-10-08 M. Ali-Akbari , D. Giataganas , Z. Rezaei

There are strong indications that ultra-relativistic heavy ion collisions, produced in accelarators, lead to the formation of a new state of matter: the quark gluon plasma (QGP). This deconfined QCD matter is expected to exist just for very…

High Energy Physics - Phenomenology · Physics 2020-03-24 Nelson R. F. Braga , Rodrigo da Mata

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

We explore the in-medium properties of heavy-quarkonium states at finite baryo-chemical potential and finite transverse momentum based on a modern complex-valued potential model. Our starting point is a novel, rigorous derivation of the…

High Energy Physics - Phenomenology · Physics 2020-03-12 David Lafferty , Alexander Rothkopf

We have studied the dissociation of quarkonia states in a deconfined medium of quarks and gluons at the large baryon chemical potential and small temperature region. The aim of this study is to probe the dense baryonic medium expected to be…

High Energy Physics - Phenomenology · Physics 2015-08-12 Uttam Kakade , Binoy Krishna Patra

We present numerical solutions in a one-dimensional setting of quantum master equations that have been recently derived. We focus on the dynamics of a single heavy quark-antiquark pair in a Quark-Gluon Plasma in thermal equilibrium, in the…

High Energy Physics - Phenomenology · Physics 2024-11-05 Stéphane Delorme , Roland Katz , Thierry Gousset , Pol Bernard Gossiaux , Jean-Paul Blaizot

We study the properties of quarkonia inside a bulk-viscous quark gluon plasma. The non-equilibrium nature of the medium is encoded in the deformed distribution functions of thermal quarks and gluons, with which we compute the dielectric…

High Energy Physics - Phenomenology · Physics 2022-03-03 Lata Thakur , Yuji Hirono

Master equations of the Lindblad type have recently been derived to describe the dynamics of quarkonium states in the quark-gluon plasma. Because their full resolution in three dimensions is very challenging, the equations are often reduced…

High Energy Physics - Phenomenology · Physics 2022-12-05 Roland Katz , Stéphane Delorme , Pol-Bernard Gossiaux

Heavy quarks and quarkonia are versatile probes of the transport properties of the hot QCD medium produced in ultra-relativistic heavy-ion collisions (URHICs). A robust description of heavy-flavor transport coefficients requires a…

Nuclear Theory · Physics 2026-01-12 Biaogang Wu , Zhanduo Tang , Ralf Rapp

We reconsider a plasma with an anisotropy imposed on the momentum distribution of the system and study the real time static potential for quarkonia. The distribution function is normalised so as to preserve the particle number in an ideal…

High Energy Physics - Phenomenology · Physics 2009-08-13 O. Philipsen , M. Tassler

Leveraging high-precision lattice QCD data on the equation of state and baryon number susceptibility at vanishing chemical potential, we construct a Bayesian holographic QCD model and systematically analyze the thermodynamic properties of…

High Energy Physics - Phenomenology · Physics 2025-08-19 Liqiang Zhu , Ou-Yang Luo , Xun Chen , Kai Zhou , Hanzhong Zhang , Defu Hou

Quarkonia, which are bound states of a heavy quark and antiquark, play a key role in probing the quark-gluon plasma (QGP). The dynamics of quarkonia in the QGP are encoded in their finite-temperature spectral functions. In this work, we…

High Energy Physics - Lattice · Physics 2025-05-19 Sajid Ali , Dibyendu Bala , Olaf Kaczmarek , Pavan

The resolution of Dyson-Schwinger equations leads to the freezing of the QCD running coupling (effective charge) in the infrared, which is best understood as a dynamical generation of a gluon mass function, giving rise to a momentum…

High Energy Physics - Phenomenology · Physics 2015-05-30 P. Gonzalez , V. Mathieu , V. Vento

The observation of spin alignment of quarkonia in ultra-relativistic heavy-ion collisions provides deep insight into the possible formation of the quark-gluon plasma (QGP). The present study investigates the spin alignment of quarkonia…

Nuclear Theory · Physics 2026-03-25 Bhagyarathi Sahoo , Captain R. Singh , Raghunath Sahoo

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 present the final results of our high statistics study on the properties of bottomonium and charmonium at finite temperature. We focus on the temperature range around the crossover transition $150\leq T\leq 410$MeV, relevant for current…

High Energy Physics - Lattice · Physics 2018-12-05 Seyong Kim , Peter Petreczky , Alexander Rothkopf

We generalize a complex heavy-quark potential model from an isotropic QCD plasma to an anisotropic one by replacing the Debye mass $m_D$ with an anisotropic screening mass depending on the quark pair alignment with respect to the direction…

High Energy Physics - Phenomenology · Physics 2022-09-27 Lihua Dong , Yun Guo , Ajaharul Islam , Alexander Rothkopf , Michael Strickland

Quarkonia are some of the most important probes of the medium created in relativistic heavy ion collision experiments, but it is still difficult to get quantitative results for its behavior in the plasma. Here I discuss the decay width of a…

High Energy Physics - Lattice · Physics 2018-04-02 Saumen Datta