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dc.contributor.authorDubovyk, Ievgen-
dc.contributor.authorGluza, Janusz-
dc.contributor.authorFreitas, Ayres-
dc.contributor.authorRiemann, Tord-
dc.contributor.authorUsovitsch, Johann-
dc.identifier.citationActa Physica Polonica B, Vol. 48, no. 12 (2017), s. 2321-2329pl_PL
dc.description.abstractPrecision measurements of properties of the electroweak W - and Z-bosons provide strong constraints on the Standard Model (SM) and extensions thereof. This sensitivity crucially depends on the availability of accurate theoretical predictions for these quantities, including higher-order radiative corrections. This contribution gives a brief overview of available calculations and compares the estimate of theory uncertainties with the projected experimental precision of future e(+)e(-) collider proposals. Then it is shown how numerical Mellin-Barnes integrals can be used to evaluate higher-order loop integrals that depend on three or more independent mass and momentum scales. As a concrete physical application, the complete two-loop corrections to Z -> b (b) over bar are considered.pl_PL
dc.rightsUznanie autorstwa 3.0 Polska*
dc.subjectcząstki elementarnepl_PL
dc.subjectoddziaływania elektrosłabepl_PL
dc.subjectBozon Higgsapl_PL
dc.titleElectroweak bosonic 2-loop corrections to the Z-pole precision observablespl_PL
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