DC pole | Wartość | Język |
dc.contributor.author | Dubovyk, Ievgen | - |
dc.contributor.author | Usovitsch, Johann | - |
dc.contributor.author | Grzanka, Krzysztof | - |
dc.date.accessioned | 2021-06-02T09:09:35Z | - |
dc.date.available | 2021-06-02T09:09:35Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | "Symmetry" (2021), Vol. 13, iss. 6, art. no. 975, s. 1-12 | pl_PL |
dc.identifier.issn | 2073-8994 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/20335 | - |
dc.description.abstract | There are many methods of searching for traces of the so-called new physics in particle
physics. One of them, and the main focus of this paper, is athe study of the Z-boson decay in e+e
collisions. An improvement in the precision of calculations of the Standard Model (SM) electroweak
pseudo-observables, such as scattering asymmetries, effective weak mixing angles, and decay widths,
related to the Z-boson will meet severe experimental requirements at the planned e+e colliders and
will increase the chance to detect non-standard effects in experimental analysis. To reach this goal,
one has to calculate the next order of perturbative SM theory, namely three-loop Feynman integrals.
We discuss the complexity of the problem, as well as the methods crucial for completing three-loop
calculations. We show several numerical solutions for some three-loop Feynman integrals using
sector decomposition, Mellin–Barnes (MB), and differential equation methods. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/pl/ | * |
dc.subject | Feynman multi-loop integrals | pl_PL |
dc.subject | sector decomposition method | pl_PL |
dc.subject | Mellin–Barnes method | pl_PL |
dc.subject | integration-by-parts | pl_PL |
dc.subject | differential equations | pl_PL |
dc.title | Toward three-loop Feynman massive diagram calculations | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.identifier.doi | 10.3390/sym13060975 | - |
Pojawia się w kolekcji: | Artykuły (WNŚiT)
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