Two-loop $O(\epsilon)$ term of $1/(mr^2)$ heavy quarkonium potential

Yukinari Sumino

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arXiv · 2411.07048

Two-loop $O(\epsilon)$ term of $1/(mr^2)$ heavy quarkonium potential

Yukinari Sumino

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Abstract

As a straightforward application of the recently calculated two-loop heavy quarkonium Hamiltonian, we evaluate the two-loop $O(\epsilon)$ term of the $1/(mr^2)$ 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.

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Yukinari Sumino. 2024-11-11. Two-loop $O(\epsilon)$ term of $1/(mr^2)$ heavy quarkonium potential. https://arxiv.org/abs/2411.07048

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