In-medium quarkonium properties from a lattice QCD based effective field theory

Abstract

In order to understand the experimental data on heavy quarkonium production in heavy ion collisions at RHIC and LHC it is necessary (though not sufficient) to pinpoint the properties of heavy $Q\bar{Q}$ bound states in the deconfined quark-gluon plasma, including their dissolution. Here we present recent results on the temperature dependence of bottomonium and charmonium correlators, as well as their spectral functions in a lattice QCD based effective field theory called NRQCD, surveying temperatures close to the crossover transition $140\mathrm{MeV}<T<249\mathrm{MeV}$. The spectra are reconstructed based on a novel Bayesian prescription, whose systematic uncertainties are assessed. We present indications for sequential melting of different quarkonium species with respect to their vacuum binding energies and give estimates on the survival of S-wave and P-wave ground states.

4 pages, 3 figures, talk given at the XXV International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2015), Kobe, Japan

References in corpus (5)

• The equation of state in (2+1)-flavor QCD
• Observation of sequential Upsilon suppression in PbPb collisions
• Quarkonium at finite temperature: Towards realistic phenomenology from first principles
• Lattice NRQCD study of quarkonium at non-zero temperature
• Lattice NRQCD study on in-medium bottomonium spectra using a novel Bayesian reconstruction approach

Cited by in corpus (5)

• Lattice QCD and heavy ion collisions: a review of recent progress
• Bayesian study of relativistic open and hidden charm in anisotropic lattice QCD
• Heavy ions at the Future Circular Collider
• Nuclear modification of ${\rm Y}$ states in pPb collisions at $\sqrt{s_{\mathrm{NN}}}=$ 5.02 TeV
• Wilson coefficients of dimension 6 gluon operators with spin indices in the heavy quark current correlation functions