Abstract
Investigating the polarization of weak bosons provides an important probe of the scalar and gauge sector of the Standard Model. This can be done in the Higgs decay to four leptons, whose Standard-Model leading-order amplitude enables to generate polarized observables from unpolarized ones via a fully-differential reweighting method. We study the text {Z} -boson polarization from the decay of a Higgs boson produced in association with two jets, both in the gluon-fusion and in the vector-boson fusion channel. We also address the possibility of extending the results of this work to higher orders in perturbation theory.
Highlights
The discovery of the Higgs boson [1, 2] has enabled a large number of tests of the Standard Model (SM) scalar and gauge sectors.In the SM, electroweak bosons (W and Z) acquire their mass and, as a consequence, an additional longitudinal polarization, through their coupling to the Higgs field
We study the Z-boson polarization from the decay of a Higgs boson produced in association with two jets, both in the gluon-fusion and in the vector-boson fusion channel
In this work we perform a phenomenological study of polarized electroweak bosons from the decay of a Standard Model (SM) Higgs boson produced in association with two jets at the Large Hadron Collider (LHC)
Summary
The discovery of the Higgs boson [1, 2] has enabled a large number of tests of the Standard Model (SM) scalar and gauge sectors. For the purposes of this work, we only consider the production of a Higgs boson in association with two jets In this channel the GGF and VBF contributions are comparable. The SM prediction for an on-shell Higgs boson produced in GGF in association with two jets is known at leading order (LO) in QCD, including dependence on the top-quark mass [42,43,44]. In this work we perform a phenomenological study of polarized electroweak bosons from the decay of a Standard Model (SM) Higgs boson produced in association with two jets at the LHC. Given the very small fraction of Higgs bosons decaying into four charged leptons, being able to sum over different production channels is crucial to enhance the experimental sensitivity to the polarization structure.
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