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6 papers · 2 filters
Particle escape into extra space
Michael Maziashvili
We focus on escape of a spin integer particle the challenge for which is of course that the corresponding field equation contains the second order time derivative and, in general,…
Laurent series expansion of a class of massive scalar one-loop integrals up to ${\cal O}(\ep^2)$ in terms of multiple polylogarithms
J. G. Körner, Z. Merebashvili, M. Rogal
In a recent paper we have presented results for a set of massive scalar one-loop master integrals needed in the NNLO parton model description of the hadroproduction of heavy flavor…
One-loop amplitudes for four-point functions with two external massive quarks and two external massless partons up to O(epsilon^2)
J. G. Körner, Z. Merebashvili, M. Rogal
We present complete analytical results on the one-loop amplitudes relevant for the NNLO quark-parton model description of the hadroproduction of heavy quarks as…
Dynamics of massive matter disappearance on the brane
Michael Maziashvili
Time evolution of the probability of quasilocalized massive modes decay trough the tunneling into an extra dimension is analyzed in the Randall-Sundrum braneworld model.
Quantum electrodynamics for vector mesons
D. Djukanovic, M. R. Schindler, J. Gegelia +1
Quantum electrodynamics for mesons is considered. It is shown that, at tree level, the value of the gyromagnetic ratio of the is fixed to 2 in a self-consistent effective…
Including the resonance in baryon chiral perturbation theory
C. Hacker, N. Wies, J. Gegelia +1
Baryon chiral perturbation theory with explicit degrees of freedom is considered. Using the extended on-mass-shell renormalization scheme, a manifestly Lorentz-invariant…