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Testing non-perturbative strong interaction effects via the Adler function
S. Eidelman, F. Jegerlehner, A. L. Kataev +1
Based on the compilation of the available e^+e^- data, we present a non-perturbative estimation of the Adler function derived from the electromagnetic current correlator, and compa…
The Deconfinement Phase Transition in One-Flavour QCD
Constantia Alexandrou, Artan Boriçi, Alessandra Feo +4
We present a study of the deconfinement phase transition of one-flavour QCD, using the multiboson algorithm. The mass of the Wilson fermions relevant for this study is moderately l…
Exact mass dependent two--loop in the background MOM renormalization scheme
F. Jegerlehner, O. V. Tarasov
A two-loop calculation of the renormalization group --function in a momentum subtraction scheme with massive quarks is presented using the background field formalism. The result…
Thermodynamics of One-flavour QCD
C. Alexandrou, A. Boriçi, A. Feo +4
We give a brief introduction on finite temperature phase transitions in lattice QCD including a discussion on the identification of first order transitions. We present a study of t…
The "Ether-world" and Elementary Particles
F. Jegerlehner
We discuss a scenario of ``the path to physics at the Planck scale'' where todays theory of the interactions of elementary particles, the so called Standard Model (SM), emerges as…
Two-loop QCD corrections of the massive fermion propagator
J. Fleischer, F. Jegerlehner, O. V. Tarasov +1
The off-shell two-loop correction to the massive quark propagator in an arbitrary covariant gauge is calculated and results for the bare and renormalized propagator are presented.…