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Interacting cosmic fluids in power-law Friedmann-Robertson-Walker cosmological models
Mauricio Cataldo, Patricio Mella, Paul Minning +1
We provide a detailed description for power--law scaling Friedmann-Robertson-Walker cosmological scenarios dominated by two interacting perfect fluid components during the expansio…
Fourier transforms of UD integrals
Igor Kondrashuk, Anatoly Kotikov
UD integrals published by N. Usyukina and A. Davydychev in 1992-1993 are integrals corresponding to ladder-type Feynman diagrams. The results are UD functions where …
Gluon self-interaction in the position space in Landau gauge
Gorazd Cvetic, Igor Kondrashuk
We propose a method to treat the three-gluon self-interaction vertex in the position space in D = 4 - 2e dimensions. As an example, we calculate a two-loop contribution to auxiliar…
Towards the two-loop Lcc vertex in Landau gauge
Gorazd Cvetic, Igor Kondrashuk, Anatoly Kotikov +1
We are interested in the structure of the Lcc vertex in the Yang-Mills theory, where c is the ghost field and L the corresponding BRST auxiliary field. This vertex can give us info…