SMEFT truncation effects in Higgs boson pair production at NLO QCD

Heinrich, G.; Jannis, Lang,

doi:10.1088/1742-6596/2438/1/012153

Cited by 2 publications

(1 citation statement)

References 22 publications

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“…A possible extension of this analysis is 𝑝 𝑝 → ℎ 𝑗, which we leave for future work. The impact of four-top operators in 𝑝 𝑝 → ℎℎ (considering also the subleties of the continuation of 𝛾 5 ) has been studied in [22].…”

Section: Discussionmentioning

confidence: 99%

Higgs probes of top contact interactions and their interplay with Higgs self-coupling

Di Noi,

Gröber

2024

Proceedings of the Eleventh Annual Conference on Large Hadron Collider Physics — PoS(LHCP2023)

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We present a method which relies on loop contributions from four-top SMEFT operators to single Higgs observables to contrain their Wilson coefficients. Such loop-induced terms have a nontrivial interplay with the extraction of the trilinear Higgs coupling. We show that this strategy can, for some operators, lead to more stringent bounds than direct measurement via top quark data. Finally, we mention some recent developements in the treatment of 𝛾 5 in dimensional regularisation in the context of the SMEFT.

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Section: Discussionmentioning

confidence: 99%

Higgs probes of top contact interactions and their interplay with Higgs self-coupling

Di Noi,

Gröber

2024

Proceedings of the Eleventh Annual Conference on Large Hadron Collider Physics — PoS(LHCP2023)

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Effective field theory descriptions of Higgs boson pair production

Alasfar,

Cadamuro,

Dimitriadi

et al. 2024

SciPost Phys. Comm. Rep.

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Higgs boson pair production is traditionally considered to be of particular interest for a measurement of the trilinear Higgs self-coupling. Yet it can offer insights into other couplings as well, since – in an effective field theory (EFT) parameterisation of potential new physics – both the production cross section and kinematical properties of the Higgs boson pair depend on various other Wilson coefficients of EFT operators. This note summarises the ongoing efforts related to the development of EFT tools for Higgs boson pair production in gluon fusion, and provides recommendations for the use of distinct EFT parameterisations in the Higgs boson pair production process. This document also outlines where further efforts are needed and provides a detailed analysis of theoretical uncertainties. Additionally, benchmark scenarios are updated. We also re-derive a parameterisation of the next-to-leading order (NLO) QCD corrections in terms of the EFT Wilson coefficients both for the total cross section and the distribution in the invariant mass of the Higgs boson pair, providing for the first time also the covariance matrix. A reweighting procedure making use of the newly derived coefficients is validated, which can be used to significantly speed up experimental analyses.

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SMEFT truncation effects in Higgs boson pair production at NLO QCD

Cited by 2 publications

References 22 publications

Higgs probes of top contact interactions and their interplay with Higgs self-coupling

Higgs probes of top contact interactions and their interplay with Higgs self-coupling

Effective field theory descriptions of Higgs boson pair production

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