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NLO EW and QCD corrections to polarized ZZ production in the four-charged-lepton channel at the LHC
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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.
Forward citations
Cited by 2 Pith papers
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The Four Polarizations of the $W$ at High Energies
Polarization interference in intermediate W bosons is generically nonzero even on-shell, can exceed width-over-mass corrections at low energies, and is suppressed at LHC energies; a 2P scheme is proposed to reduce gau...
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Effects of bottom quark induced processes on polarized $W^+W^-$ production at the LHC at NLO
Bottom-quark induced processes at NLO QCD+EW increase the doubly-longitudinal W+W- polarization fraction by about 7.6% with a jet veto and 10.5% without, after on-shell top-quark subtraction.
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