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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…

核理论 · 物理学 2026-01-12 Biaogang Wu , Zhanduo Tang , Ralf Rapp

We present results from lattice calculations on the thermodynamics of QCD at non-zero temperature and baryon chemical potential and discuss the role of resonances for the occurrence of the transition to the quark-gluon plasma in hot and…

高能物理 - 格点 · 物理学 2008-11-26 Frithjof Karsch

We review the current methods and results of lattice simulations of quantum chromodynamics at nonzero temperatures and densities. The review is intended to introduce the subject to interested nonspecialists and beginners. It includes a…

高能物理 - 格点 · 物理学 2009-07-24 C. E. DeTar , U. M. Heller

We calculate the heavy quarkonium energy levels and decay widths in a quark-gluon plasma, whose temperature T and screening mass m_D satisfy the hierarchy m alpha_s >> T >> m alpha_s^2 >> m_D (m being the heavy-quark mass), at order m…

高能物理 - 唯象学 · 物理学 2014-11-21 Nora Brambilla , Miguel Angel Escobedo , Jacopo Ghiglieri , Joan Soto , Antonio Vairo

The static properties and dynamic evolution of bottomonium states in a hot QCD medium are investigated through the Schr\"odinger equation with complex heavy quark potentials, which are presented recently in lattice QCD study and with three…

核理论 · 物理学 2024-02-20 Ge Chen , Baoyi Chen , Jiaxing Zhao

We review recent heavy quarkonium measurements in $pp$, $p\mathrm{Pb}$, and $\mathrm{PbPb}$ collisions at the LHC by the ALICE, ATLAS, CMS, and LHCb collaborations using Run 2 and early Run 3 data. Production studies include present…

高能物理 - 实验 · 物理学 2025-09-15 Yiyang Zhao , Jinfeng Liu , Xing Cheng , Chi Wang , Zhen Hu

We estimate the binding energies of charmonium ($J/\psi$, $\psi(2S)$, $\psi(1D)$, $\chi_{c0}$, $\chi_{c1}$, $\chi_{c2}$) and bottomonium ($\Upsilon(1S)$, $\Upsilon(2S)$, $\Upsilon_2(1D)$, $\chi_{b0}$, $\chi_{b1}$, $\chi_{b2}$) states bound…

核理论 · 物理学 2024-10-22 Arpita Mondal , Amruta Mishra

The charmonium and bottomonium mass spectra are investigated in potential nonrelativistic QCD (pNRQCD) with the heavy quark potential computed by lattice QCD simulations. The potential consists of a static potential and relativistic…

高能物理 - 格点 · 物理学 2012-12-10 Yoshiaki Koma , Miho Koma

We present an evaluation of heavy quarkonium states (bottomium and charmonium) from first principles. We use tree-level QCD (including relativistic corrections) and the full one-loop potential; nonperturbative effects are taken into account…

高能物理 - 唯象学 · 物理学 2009-10-22 S. Titard , F. F. Yndurain

We estimate bottomonium yields in relativistic heavy-ion collisions using a lattice QCD vetted, complex-valued, heavy-quark potential embedded in a realistic, hydrodynamically evolving medium background. We find that the lattice-vetted…

高能物理 - 唯象学 · 物理学 2018-01-31 Brandon Krouppa , Alexander Rothkopf , Michael Strickland

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…

高能物理 - 唯象学 · 物理学 2020-03-24 Nelson R. F. Braga , Rodrigo da Mata

We calculate quarkonium spectral functions in a quark-gluon plasma using a potential model based on full QCD lattice calculations of the free energy of static quark-antiquark pair. We estimate the binding energy and the thermal width of…

高能物理 - 唯象学 · 物理学 2008-11-26 Agnes Mocsy , Peter Petreczky

The bound states of a heavy quark and antiquark ($c\bar{c}, b\bar{b}$) are ideal probes to explore the quark-gluon plasma created in relativistic heavy-ion collisions at the RHIC and LHC. Not only have they become experimentally accessible…

高能物理 - 格点 · 物理学 2016-11-22 Alexander Rothkopf

QCD at finite temperature and density is becoming increasingly important for various experimental programmes, ranging from heavy ion physics to astro-particle physics. The non-perturbative nature of non-abelian quantum field theories at…

高能物理 - 格点 · 物理学 2009-11-02 Owe Philipsen

We present recent results on thermodynamics of QCD with almost physical light quark masses and a physical strange quark mass value. These calculations have been performed with an improved staggerd action especially designed for finite…

高能物理 - 格点 · 物理学 2008-11-26 Christian Schmidt

The FASTSUM collaboration has been carrying out simulations of N_f=2+1 QCD at nonzero temperature in the fixed-scale approach using anisotropic lattices. Here we present the status of these studies, including recent results for electrical…

I summarize recent lattice results on QCD at finite temperatures and densities. Studies on the nature of the QCD transition at the physical point, continuum extra polations of thermodynamic quantities, and new calculations of hadronic…

高能物理 - 唯象学 · 物理学 2009-11-07 Kazuyuki Kanaya

Bottomonium states are key probes for experimental studies of the quark-gluon plasma (QGP) created in high-energy nuclear collisions. Theoretical models of bottomonium productions in high-energy nuclear collisions rely on the in-medium…

高能物理 - 唯象学 · 物理学 2022-01-25 Shuzhe Shi , Kai Zhou , Jiaxing Zhao , Swagato Mukherjee , Pengfei Zhuang

Quarkonia, i.e. bound states of $b\bar{b}$ and $c\bar{c}$ quarks, are powerful observables to study the properties of nuclear matter under extreme conditions. The formation of a Quark-Gluon Plasma (QGP), which is predicted by lattice QCD…

高能物理 - 实验 · 物理学 2019-02-20 Pascal Dillenseger

We study S-wave and P-wave bottomonium spectral functions at non-zero temperature in 2+1 flavor QCD using the NRQCD formulation for bottom quarks. We use a novel Bayesian approach to reconstruct the spectral functions and find that…

高能物理 - 格点 · 物理学 2014-10-09 Seyong Kim , Peter Petreczky , Alexander Rothkopf