S-wave quarkonia in potential models

S-Wave Quarkonia in Potential Models

For the last twenty years the melting of heavy quark bound states has been considered an unambiguous signal for deconfinement [1]. Understanding the modification of the properties of heavy quarkonia in a hot medium is therefore essential for understanding deconfinement. Phenomenological studies based on potential models have been recently accompanied by lattice QCD calculations. The temperature...

Potential Models for Quarkonia What can we learn from potential models at finite temperature?

In this paper I discuss what we can learn about quarkonium dissociation from lattice-potential based models. Special emphasis is given to results obtained in agreement by different models, and to the relevance of lattice QCD for potential models. Future directions are also discussed. PACS. PACS-key discribing text of that key – PACS-key discribing text of that key Why are we interested? One of ...

Annihilation of S - wave quarkonia and the measurement of α s ∗

We analyze the relativistic corrections to annihilation rates of S-wave quarkonia within the framework of NRQCD. We show that order v2 corrections can be expressed in terms of the heavy quark pole mass and the quarkonium mass. The ratio of hadronic to radiative annihilation rates for ηb and ηc can therefore be predicted accurately. The contributions of color-octet operators to the hadronic deca...

Heavy Quarkonia Survival in Potential Model

We investigate the quarkonia correlators in QCD with no light quarks within a potential model with different screened potentials. Our results for the temperature dependence of the charmonium and bottomonium correlators are qualitatively consistent with existing and preliminary lattice results. We identify however, a much reacher structure in the correlators than the one seen on the lattice. PAC...

Semirelativistic potential model for heavy quarkonia.