Two-loop O(ϵ) term of 1/(mr2) heavy quarkonium potential
As a straightforward application of the recently calculated two-loop heavy quarkonium Hamiltonian, we evaluate the two-loop O ( ϵ ) term of the 1 / ( m r 2 ) heavy quarkonium potential. Compared to a previous calculation we find a small difference in the coefficient of the maximally non-abelian color factor C F C A 2 . We further examine this coefficient carefully.
Authors
- Y. Sumino (ORCID: https://orcid.org/0000-0003-1921-8889)
Institutions
- Tohoku University (JP)
Publication Details
- Journal
- Physics Letters B
- Published
- 2024-12-30
- DOI
- https://doi.org/10.1016/j.physletb.2024.139223
- Citations
- 2
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 1.32
Funders
- Japan Society for the Promotion of Science London