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
AUTHORS (2)
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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