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9 papers · 1 filter
QED Bremsstrahlung in decays of electroweak bosons
A. B. Arbuzov, R. R. Sadykov, Z. Was
Isolated lepton momenta, in particular their directions are the most precisely measured quantities in pp collisions at LHC. This offers opportunities for multitude of precision mea…
When epsilon-expansion of hypergeometric functions is expressible in terms of multiple polylogarithms: the two-variables examples
Vladimir V. Bytev, Mikhail Yu. Kalmykov, Bernd A. Kniehl
In this talk, we discuss the algorithm for the construction of analytical coefficients of higher order epsilon expansion of some Horn type hypergeometric functions of two variables…
Curvature Oscillations in Modified Gravity and High Energy Cosmic Rays
E. V. Arbuzova, A. D. Dolgov, L. Reverberi
It is shown that F(R)-modified gravitational theories lead to curvature oscillations in astrophysical systems with rising energy density. The frequency and the amplitude of such os…
Superconductivity phenomenon induced by external in-plane magnetic field in (2+1)-dimensional Gross--Neveu type model
K. G. Klimenko, R. N. Zhokhov, V. Ch. Zhukovsky
Phase structure of the (2+1)-dimensional model with four-fermion interaction of spin-1/2 quasiparticles (electrons) both in the fermion-antifermion (or chiral) and fermion-fermion…
Superconducting phase transitions induced by chemical potential in (2+1)-dimensional four-fermion quantum field theory
K. G. Klimenko, R. N. Zhokhov, V. Ch. Zhukovsky
In the paper a generalization of the (1+1)-dimensional model by Chodos et al [Phys. Rev. D61, 045011 (2000)] has been performed to the case of (2+1)-dimensional spacetime. The mode…
Cusped light-like Wilson loops in gauge theories
I. O. Cherednikov, T. Mertens, F. F. Van der Veken
We propose and discuss a new approach to the analysis of the correlation functions which contain light-like Wilson lines or loops, the latter being cusped in addition. The objects…