Instanton effects on the heavy-quark static potential

2016/02/29 by U. T. Yakhshiev, U. Yakhshiev, Hyun-Chul Kim +3
Physics and Astronomy · #High-Energy Particle Collisions Research #Instanton #Potential method #Pulsars and Gravitational Waves Research #Quantum Chromodynamics and Particle Interactions #Spectral line #hep-ex #hep-lat #hep-ph

paper · pdf · doi:10.1088/1674-1137/41/8/083102

15 pages, 2 figures

openalex created_date 2016/06/24 · arxiv created 2017/04/16 · openalex publication_date 2017/08/01 · arxiv updated 2017/09/13 · openalex updated_date 2026/08/05

Abstract

We investigate instanton effects on the heavy-quark potential, including its spin-dependent part, based on the instanton liquid model. Starting with the central potential derived from the instanton vacuum, we obtain the spin-dependent part of the heavy-quark potential. We discuss the results of the heavy-quark potential from the instanton vacuum. Finally, we solve the nonrelativistic two-body problem, associated with the heavy-quark potential from the instanton vacuum. The instanton effects on the quarkonia spectra are marginal but are required for quantitative description of the spectra.

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