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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/144491
Heavy quarkonium in a weakly-coupled quark-gluon plasma below the melting temperature
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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 mα s ≫ T ≫ mα s 2 ≫m D (m being the heavy-quark mass), at order mα s 5 . We first sequentially integrate out the scales m, mα 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.
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BRAMBILLA, Nora, et al. Heavy quarkonium in a weakly-coupled quark-gluon plasma below the melting temperature. Journal of High Energy Physics. 2010. Vol. 2010, num. 038. ISSN 1126-6708. [consulted: 16 of June of 2026]. Available at: https://hdl.handle.net/2445/144491