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arxiv: 1603.05304 · v2 · pith:QYL73JIJnew · submitted 2016-03-16 · ✦ hep-ph · hep-ex

New physics and signal-background interference in associated ppto HZ production

Christoph Englert , Rogerio Rosenfeld , Michael Spannowsky , Alberto Tonero This is my paper
classification ✦ hep-ph hep-ex
keywords physicsassociatedinterferenceproductionsectorsignal-backgroundtop-higgsclass
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We re-investigate electroweak signal-background interference in associated Higgs production via gluon fusion in the presence of new physics in the top-Higgs sector. Considering the full final state $pp \to b \bar b \ell^+\ell^-$ ($\ell=e,\mu$), we discuss how new physics in the top-Higgs sector that enhances the $ZZ$ component can leave footprints in the $HZ$ limit setting. In passing we investigate the phenomenology of a class of new physics interactions that can be genuinely studied in this process.

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  1. Associated $ZH$ production in gluon fusion process at NLO+NLL

    hep-ph 2026-05 unverdicted novelty 5.0

    NLO+NLL QCD corrections to gluon-fusion ZH production increase the cross-section by ~20% and reduce scale uncertainties from 20% to 12% at LHC energies, combined with Drell-Yan N3LL results.