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Longitudinal structure function FL at small x extracted from the Berger-Block-Tan parametrization of F2
L. P. Kaptari, A. V. Kotikov, N. Yu. Chernikova +1
The longitudinal structure function FL(x,Q2) is extracted at low values of the Bjorken variable x from the Berger-Block-Tan parametrization of F2(x,Q2). The obtained FL(x,Q2) does…
Analytical properties of the gluon propagator from truncated Dyson-Schwinger equation in complex Euclidean space
L. P. Kaptari, B. Kaempfer, P. Zhang
We suggest a framework based on the rainbow approximation with effective parameters adjusted to lattice data. The analytic structure of the gluon and ghost propagators of QCD in La…
Pseudo-scalar {\boldm } bound states at finite temperatures within a Dyson-Schwinger--Bethe-Salpeter approach
S. M. Dorkin, L. P. Kaptari, B. Kämpfer
The combined Dyson-Schwinger--Bethe-Salpeter equations are employed at non-zero temperature. The truncations refer to a rainbow-ladder approximation augmented with an interaction k…
Regge Trajectories of Radial Meson Excitations: Exploring the Dyson-Schwinger-- Bethe-Salpeter Approach
R. Greifenhagen, B. Kämpfer, L. P. Kaptari
The combined Dyson-Schwinger and Bethe-Salpeter equations in rainbow-ladder approximation are used to search for Regge trajectories of mesons in the pseudo-scalar and vector channe…