Aspects of the QCD θ-vacuum
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DOI: 10.1007/jhep06(2019)106
Abstract: A bstractThis paper addresses two aspects concerning the θ-vacuum of Quantum Chro-modynamics. First, large-Nc chiral perturbation theory is used to calculate the first two non-trivial cumulants of the distribution of the winding number, i.e. the… read more here.
Keywords: left right; vacuum; degenerate; mathcal left ... See more keywords
Semiclassics for the QCD vacuum structure through T2-compactification with the baryon-’t Hooft flux
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DOI: 10.1007/jhep08(2024)001
Abstract: We study QCD vacuum structure with the topological θ angle using a recently proposed semiclassical approach on ℝ2 × T2 with the ’t Hooft and baryon magnetic fluxes. Under the assumption of adiabatic continuity in… read more here.
Keywords: vacuum; qcd vacuum; baryon; vacuum structure ... See more keywords
Dipole polarizabilities of light pseudoscalar mesons within the domain model of the QCD vacuum
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DOI: 10.1103/physrevd.107.094027
Abstract: Dipole polarizabilities of light pseudoscalar mesons are calculated in the framework of the mean field approach to QCD vacuum and bosonization based on the statistical ensemble of almost everywhere homogeneous Abelian (anti-)self-dual gluon fields --… read more here.
Keywords: dipole polarizabilities; domain model; qcd vacuum; polarizabilities light ... See more keywords