6 papers
Dispersive analysis of the production at the CMD3 experiment and the compatibility with muon pair production measurement by KLOE2 and the pion form factor by JLAB
Dimitrios Petrellis, Vladimir Sauli
The spectral function of the charged pion form factor was extracted from two data sets. The difference between the two sets is based on the presence or absence of the recent measur…
The effective charm mass from the excited charmonium leptonic decays
V. Sauli
We use the covariant four-dimensional Bethe-Salpeter (BS) equation to determine the effective charm quark mass. The scale dependence of the effective charm quark mass is determined…
Quark spectral functions from spectra of mesons and vice versa
Vladimir Sauli
We extract the spectral function of quarks using the QCD functional formalism.The reliability of approximations is controlled by the masses and decays of pseudoscalar mesons. For l…
A Spin One Bottomonium Study in the Functional Formalism in the Feynman Gauge
Vladimir Sauli
The Bethe-Salpeter equation for spin-one bottomonium coupled to quark and gluon propagators is solved in a class of non-trivial linear gauges. The interaction kernel is based on a…
Towards the finite quantum field theory
Vladimir Sauli
In this study, we propose a novel regularization/renormalization scheme that utilizes an auxiliary Feynman parameterization. This approach is employed to align a specified loop dia…
Excited s-wave vector mesons, their leptonic decays and (in-)complete absence of abnormal states as seen from the constituent quark BSE
V. Sauli
Within a lattice inspired interaction between quark and antiquark, we obtain a hierarchy of solutions to the Bethe-Salpeter equation (BSE) for vector quarkonia excited states in th…