Heavy quarkonium in a weakly-coupled quark-gluon plasma below the melting temperature

2010/07/23 by Nora Brambilla, Miguel Ángel Escobedo, Miguel Angel Escobedo +3 · 2 citations
Physics and Astronomy · #Heavy ion #High-Energy Particle Collisions Research #Melting temperature #Order (exchange) #Plasma #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Quarkonium #Quark–gluon plasma #hep-ph #nucl-th

paper · pdf · doi:10.1007/jhep09(2010)038

published as JHEP 1009:038,2010 · 25 pages, 2 figures

arxiv created 2010/07/23 · openalex publication_date 2010/09/01 · arxiv updated 2014/11/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

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_s² >> m_D (m being the heavy-quark mass), at order m alpha_s⁵. We first sequentially integrate out the scales m, m alpha_s and T, and, next, we carry out the calculations in the resulting effective theory using techniques of integration by regions. A collinear region is identified, which contributes at this order. We also discuss the implications of our results concerning heavy quarkonium suppression in heavy ion collisions.

Citations

• Effective-field theories for heavy quarkonium
• Three-Loop Static Potential
• Potential NRQCD: an effective theory for heavy quarkonium
• Nonrelativistic bound states at finite temperature: The hydrogen atom
• Colour Deconfinement and Quarkonium Binding
• Heavy quarkonium in any channel in resummed hot QCD

Cited by

• Heavy quarkonium in extreme conditions
• Bound-state formation, dissociation and decays of darkonium with potential non-relativistic Yukawa theory for scalar and pseudoscalar mediators