Lorentz-boosted description of a heavy quarkonium

B. Z. Kopeliovich, E. Levin, Iván Schmidt, M. Siddikov

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We bridge the light-front (infinite momentum) and rest-frame descriptions of a heavy quarkonium, spanning them to any quarkonium momentum. For a relativistically moving system with nonrelativistic internal motion, a relation is established between the potentials describing a heavy quarkonium in the rest and moving reference frames. We explore two regimes: the small coupling and nonperturbative small binding energy approximations. In both cases a consistent picture emerges. The results, in particular, can be applied to the description of the final-state interaction of a heavy quarkonium produced in a nuclear or hot-matter environment. It can also be extended to the description of the final-state interaction of other weakly bound systems, like the deuteron.

Original languageEnglish
Article number034023
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number3
StatePublished - 27 Aug 2015
Externally publishedYes


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