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Insights into the quark-gluon vertex from lattice QCD and meson spectroscopy

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 نشر من قبل Eduardo Rojas
 تاريخ النشر 2014
  مجال البحث
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By comparing successful quark-gluon vertex interaction models with the corresponding interaction extracted from lattice-QCD data on the quarks propagator, we identify common qualitative features which could be important to tune future interaction models beyond the rainbow ladder approximation. Clearly, a quantitative comparison is conceptually not simple, but qualitatively the results suggest that a realistic interaction should be relatively broad with a strong support at about $0.4-0.6$~GeV and infrared-finite.



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