Heavy quarkonium spectrum and width in a weakly-coupled quark-gluon plasma

TL;DR

This paper calculates the energy levels and decay widths of heavy quarkonium in a weakly-coupled quark-gluon plasma using effective field theory, with implications for understanding Y(1S) behavior in heavy ion collisions.

Contribution

It provides a novel calculation of quarkonium properties at finite temperature within a non-relativistic effective field theory framework.

Findings

Quantifies quarkonium energy shifts and decay widths in plasma.

Highlights relevance for Y(1S) phenomenology in heavy ion collisions.

Uses a systematic EFT approach for finite temperature effects.

Abstract

We report a recent calculation of the heavy quarkonium energy levels and decay widths in a quark- gluon plasma whose temperature is much smaller than the inverse radius of the bound state, based on a Non-Relativistic Effective Field theory framework for heavy quarkonium at finite temperature. Relevance for the phenomenology of the Y(1S) in heavy ion collisions is also discussed.