NLO EW and QCD corrections to polarized ZZ production in the four-charged-lepton channel at the LHC

High Energy Physics - Phenomenology High Energy Physics - Experiment (hep-ex) High Energy Physics - Phenomenology (hep-ph) NLO Computations Nuclear and particle physics. Atomic energy. Radioactivity ddc:530 0103 physical sciences FOS: Physical sciences QC770-798 NLO Computations; 01 natural sciences High Energy Physics - Experiment
DOI: 10.1007/jhep10(2021)097 Publication Date: 2021-10-14T11:24:41Z
ABSTRACT
Abstract Measuring the polarization of electroweak bosons at the LHC allows for important tests of the electroweak-symmetry-breaking mechanism that is realized in nature. Therefore, precise Standard Model predictions are needed for the production of polarized bosons in the presence of realistic kinematic selections. We formulate a method for the calculation of polarized cross-sections at NLO that relies on the pole approximation and the separation of polarized matrix elements at the amplitude level. In this framework, we compute NLO-accurate cross-sections for the production of two polarized Z bosons at the LHC, including for the first time NLO EW corrections and combining them with NLO QCD corrections and contributions from the gluon-induced process.
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