Polarized-boson pairs at NLO in the SMEFT
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arXiv
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915804999581696 |
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| author | Haisch, Ulrich Linder, Jakob Pelliccioli, Giovanni Re, Emanuele Zanderighi, Giulia |
| author_facet | Haisch, Ulrich Linder, Jakob Pelliccioli, Giovanni Re, Emanuele Zanderighi, Giulia |
| contents | We present a computation of diboson production in the $W^\pm Z$ channel at the Large Hadron Collider (LHC), incorporating leptonic decays of the gauge bosons and considering intermediate gauge bosons with definite polarization states. The analysis includes contributions from the Standard Model effective field theory (SMEFT) and is carried out at next-to-leading order accuracy in QCD, matched to a parton-shower simulation. Our implementation allows for the selection of specific helicity configurations, both in the Standard Model and in the presence of dimension-six operators inducing anomalous triple-gauge-boson couplings. This work provides a key ingredient for both polarization-template and quantum-tomography analyses of diboson systems at the LHC within the SMEFT framework. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_21768 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Polarized-boson pairs at NLO in the SMEFT Haisch, Ulrich Linder, Jakob Pelliccioli, Giovanni Re, Emanuele Zanderighi, Giulia High Energy Physics - Phenomenology High Energy Physics - Experiment We present a computation of diboson production in the $W^\pm Z$ channel at the Large Hadron Collider (LHC), incorporating leptonic decays of the gauge bosons and considering intermediate gauge bosons with definite polarization states. The analysis includes contributions from the Standard Model effective field theory (SMEFT) and is carried out at next-to-leading order accuracy in QCD, matched to a parton-shower simulation. Our implementation allows for the selection of specific helicity configurations, both in the Standard Model and in the presence of dimension-six operators inducing anomalous triple-gauge-boson couplings. This work provides a key ingredient for both polarization-template and quantum-tomography analyses of diboson systems at the LHC within the SMEFT framework. |
| title | Polarized-boson pairs at NLO in the SMEFT |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.21768 |