Zobrazeno 1 - 10
of 63
pro vyhledávání: '"M.Yu. Kalmykov"'
Autor:
M.Yu. Kalmykov, Bernd A. Kniehl
Publikováno v:
Nuclear Physics B - Proceedings Supplements. :129-134
We briefly discuss the transcendental constants generated through the epsilon-expansion of generalized hypergeometric functions and their interrelation with the "sixth root of unity."
Comment: 6 pages, presented at "Loops and Legs in Quantum Fie
Comment: 6 pages, presented at "Loops and Legs in Quantum Fie
Autor:
M.Yu. Kalmykov, A. Sheplyakov
Publikováno v:
Computer Physics Communications. 172:45-59
Generalized log-sine functions appear in higher order epsilon-expansion of different Feynman diagrams. We present an algorithm for numerical evaluation of these functions of real argument. This algorithm is implemented as C++ library with arbitrary-p
Autor:
M.Yu. Kalmykov
Publikováno v:
Nuclear Physics B. 718:276-292
For certain dimensionally-regulated massive two- and three-loop propagator-type diagrams the higher order epsilon-expansion is constructed.
17 pages, LaTeX, 1-eps figure; v3: journal version; new references added; some unessential typos correcte
17 pages, LaTeX, 1-eps figure; v3: journal version; new references added; some unessential typos correcte
Autor:
Fred Jegerlehner, M.Yu. Kalmykov
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 534:299-303
Recent progress in the calculation of the two-loop on-shell mass counterterms within the electroweak Standard Model (SM) for the massive particles are discussed. We are in progress of developing a package for full two-loop SM calculations of 2 -> 2 f
Autor:
M.Yu. Kalmykov
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 135:280-284
Recent progress in analytical calculation of the multiple { inverse, binomial, harmonic } sums , related with ɛ -expansion of the hypergeometric function of one variable are discussed.
Autor:
Fred Jegerlehner, M.Yu. Kalmykov
Publikováno v:
Nuclear Physics B. 676:365-389
We have calculated the O ( αα s ) contributions to the relationship between the MS -mass and the pole of the t -quark propagator in the Standard Model in the limit of a diagonal CKM matrix and for a massless b-quark. Analytical results for the so f
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 116:382-386
We discuss progress in SM two-loop calculations of the pole position of the massive gauge-boson propagators.
Comment: 6 pages
Comment: 6 pages
Publikováno v:
Nuclear Physics B. 641:285-326
The relationship between MS and pole masses of the vector bosons Z and W is calculated at the two-loop level in the Standard Model. We only consider the purely bosonic contributions which represents a gauge invariant subclass of diagrams. All calcula
Autor:
Andrei I. Davydychev, M.Yu. Kalmykov
Publikováno v:
Nuclear Physics B - Proceedings Supplements. 89:283-288
Some problems related to construction of the epsilon-expansion of dimensionally regulated Feynman integrals are discussed. For certain classes of diagrams, an arbitrary term of the epsilon-expansion can be expressed in terms of log-sine integrals rel
Autor:
M.Yu. Kalmykov, O. L. Veretin
Publikováno v:
Physics Letters B. 483:315-323
The $\epsilon$-expansion of several two-loop self-energy diagrams with different thresholds and one mass are calculated. On-shell results are reduced to multiple binomial sums which values are presented in analytical form.
Comment: 10 pp LaTeX,
Comment: 10 pp LaTeX,