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NNLO QCD study of polarised $W^+ W^-$ production at the LHC
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abstract
Longitudinal polarisation of the weak bosons is a direct consequence of Electroweak symmetry breaking mechanism providing an insight into its nature, and is instrumental in searches for physics beyond the Standard Model. We perform a polarisation study of the diboson production in the $p p \to e^+\nu_e\mu^-\bar\nu_\mu$ process at NNLO QCD in the fiducial setup inspired by experimental measurements at ATLAS. This is the first polarisation study at NNLO. We employ the double-pole approximation framework for the polarised calculation, and investigate NNLO effects arising in differential distributions.
Forward citations
Cited by 2 Pith papers
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All planar three-loop Feynman integrals for the production of two vector bosons at hadron colliders
All nine planar three-loop four-point integral families for two massive external legs are cast into canonical differential equations and evaluated numerically, completing the set needed for leading-colour N3LO diboson...
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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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