Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Bezuglov, M."'
Autor:
Bezuglov, M. A., Onishchenko, A. I.
Publikováno v:
Theor.Math.Phys. 219 (2024) 3, 871-896
Hypergeometric functions of one and many variables play an important role in various branches of modern physics and mathematics. Often we have hypergeometric functions with indices linear dependent on a small parameter with respect to which one needs
Externí odkaz:
http://arxiv.org/abs/2312.06242
We consider new ways of obtaining series and integral representations for master integrals arising in the process of matching of QCD to NRQCD. The latter results are exact in space-time dimension $d$. In addition, we discuss series expansion of the o
Externí odkaz:
http://arxiv.org/abs/2205.14115
Autor:
Bezuglov, M. A., Onishchenko, A. I.
We consider the problem of obtaining higher order in regularization parameter $\epsilon$ analytical results for master integrals with elliptics. The two commonly employed methods are provided by the use of differential equations and direct integratio
Externí odkaz:
http://arxiv.org/abs/2112.05096
In the framework of hypercolor extension of the Standard Model having vectorlike hyperquarks and two stable dark matter candidates originated from different hyper-currents, we consider some effects which result from reactions with participation of th
Externí odkaz:
http://arxiv.org/abs/2110.13011
Autor:
Bezuglov, M. A.
It has recently been shown that two-loop kite-type diagrams can be computed analytically in terms of iterated integrals with algebraic kernels. This result was obtained using a new integral representation for two-loop sunset subgraphs. In this paper,
Externí odkaz:
http://arxiv.org/abs/2104.14681
We present the results for two-loop massive kite master integrals with elliptics in terms of iterated integrals with algebraic kernels. The key ingredients are new integral representations for sunset subgraphs in $d=4-2\epsilon$ and $d=2-2\epsilon$ d
Externí odkaz:
http://arxiv.org/abs/2011.13337
Autor:
Bezuglov, M. A., Onishchenko, A. I.
Recently it was discovered that the Standard Model vacuum may suffer an essential metastability near the Planck scale. In this regard it makes sense to study in more detail the decay processes of the metastable vacuum and to develop methods for their
Externí odkaz:
http://arxiv.org/abs/1903.10864
High-energy cosmic ray electrons interaction with Dark Matter particles are considered. In particular, a weakening of energy spectrum of cosmic electrons is predicted resulting from inelastic electron scattering on hyper-pions in the hypercolor exten
Externí odkaz:
http://arxiv.org/abs/1810.00372
Autor:
Bezuglov, M. A., Onishchenko, A. I.
Publikováno v:
Physics Letters B Volume 788, 10 January 2019, Pages 122-130
We consider radiative corrections to false vacuum decay in a four-dimensional scalar field theory with cubic and quartic potential. Using planar thin wall approximation we were able to get analytical expression for the decay rate up to two loop order
Externí odkaz:
http://arxiv.org/abs/1805.06482
Autor:
Bezuglov, M. A., Onishchenko, A. I.
Publikováno v:
Phys. Rev. D 96, 036001 (2017)
We consider radiative corrections to false vacuum decay within the framework of quantum mechanics for the general potential of the form 1/2 M q^2 (q-A)(q-B), where M , A and B are arbitrary parameters. For this type of potential we provide analytical
Externí odkaz:
http://arxiv.org/abs/1704.07127