1999/09/21 by E. V. Shuryak, Edward Shuryak, Shuryak, E. V. · 1 citation
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9909458
arxiv created 1999/09/21 · openalex publication_date 1999/09/21 · openalex created_date 2016/06/24 · arxiv updated 2016/09/06 · openalex updated_date 2026/07/28
The lattice data on the instanton size distribution suggest an additional O(ρ2) action. The small-ρ effect O(ρ4) predicted by the Operator Product Expansion (OPE) is not observed. Similar deviations are also found for non-perturbative response to a small static color dipoles: it is O(r) not O(r2). We suggest that small instanton radii in the QCD vacuum and small radii of the QCD strings (to which this observation relates) are consequences of the same phenomenon: a very robust dual superconductivity in the QCD vacuum, with relatively large Higgs VEV and surprisingly large Higgs mass.