Real-virtual corrections to Higgs boson pair production at NNLO: three closed top quark loops

Davies, Joshua; Herren, Florian; Mishima, Go; Steinhauser, Matthias

doi:10.1007/jhep05(2019)157

Cited by 22 publications

(26 citation statements)

References 116 publications

(231 reference statements)

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“…Analytic approximations for the top quark mass dependence of the two-loop amplitudes in the NLO calculation have been studied in Refs. [46][47][48][49][50]. Complete analytic results in the high energy limit have been presented in Ref.…”

Section: Introductionmentioning

confidence: 99%

Exploring anomalous couplings in Higgs boson pair production through shape analysis

Capozi

Heinrich

2020

J. High Energ. Phys.

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We classify shapes of Higgs boson pair invariant mass distributions m hh , calculated at NLO with full top quark mass dependence, and visualise how distinct classes of shapes relate to the underlying coupling parameter space. Our study is based on a five-dimensional parameter space relevant for Higgs boson pair production in a non-linear Effective Field Theory framework. We use two approaches: an analysis based on predefined shape types and a classification into shape clusters based on unsupervised learning. We find that our method based on unsupervised learning is able to capture shape features very well and therefore allows a more detailed study of the impact of anomalous couplings on the m hh shape compared to more conventional approaches to a shape analysis.

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Section: Introductionmentioning

confidence: 99%

Exploring anomalous couplings in Higgs boson pair production through shape analysis

Capozi

Heinrich

2020

J. High Energ. Phys.

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“…In the infinitem t limit the cross section has been computed in refs. [27][28][29] and finite 1/m t expansion terms for the virtual corrections are available from [30,31]. In ref.…”

Section: Jhep01(2022)049mentioning

confidence: 99%

Real corrections to Higgs boson pair production at NNLO in the large top quark mass limit

Davies

Herren

Mishima

et al. 2022

J. High Energ. Phys.

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In this paper we consider the next-to-next-to-leading order total cross section of Higgs boson pair production in the large top quark mass limit and compute four expansion terms in 1/$$ {m}_t^2 $$ m t 2 . To this end, we analytically compute the real-virtual and double-real contributions to the total cross section and combine them with the existing virtual contribution. Good convergence is observed below the top quark threshold, which makes our results a valuable input for approximation methods which aim for next-to-next-to-leading order corrections over the whole kinematic range. We present details on various steps of our calculation; in particular, we provide results for three- and four-particle phase-space master integrals and describe in detail the evaluation of the collinear counterterms.

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“…On the other hand, the m t → ∞ approximation is insufficient for the phenomenological applications. Thereby, many theoretical efforts have been devoted to investigate the finite m t corrections based on this approximation [19,[30][31][32][33][34][35].…”

Section: Pos(ichep2020)084mentioning

confidence: 99%

Higgs boson pair production at N$^3$LO QCD

Chen¹,

Li²,

Shao³

et al. 2020

Proceedings of 40th International Conference on High Energy Physics — PoS(ICHEP2020)

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Understanding the Higgs potential by measuring its self-interactions is fundamental in answering several big questions, such as electroweak symmetry breaking, electroweak baryogenesis, electroweak phase transition, and electroweak vacuum stability. The most promising way to probe the Higgs potential is to detect Higgs boson pair final state at high-energy colliders. In this talk, we report a recent perturbative calculation for the di-Higgs gluon-fusion process by taking into account N 3 LO QCD radiative corrections in the approximation of infinite top quark mass limit. Finite top quark mass effects are also incorporated with several approximate schemes, which are known to be crucial in phenomenological applications. We show a very good asymptotic perturbative convergence at O(α 5 s), and demonstrate that the remaining scale uncertainty is only at percent level.

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Real-virtual corrections to Higgs boson pair production at NNLO: three closed top quark loops

Cited by 22 publications

References 116 publications

Exploring anomalous couplings in Higgs boson pair production through shape analysis

Exploring anomalous couplings in Higgs boson pair production through shape analysis

Real corrections to Higgs boson pair production at NNLO in the large top quark mass limit

Higgs boson pair production at N$^3$LO QCD

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