Four-jet event shapes in hadronic Higgs decays
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
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2023
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| _version_ | 1866911806245568512 |
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| author | Ridder, Aude Gehrmann-De Preuss, Christian T Williams, Ciaran |
| author_facet | Ridder, Aude Gehrmann-De Preuss, Christian T Williams, Ciaran |
| contents | We present next-to-leading order perturbative QCD predictions for four-jet-like event-shape observables in hadronic Higgs decays. To this end, we take into account two Higgs-decay categories: involving either the Yukawa-induced decay to a $b\bar{b}$ pair or the loop-induced decay to two gluons via an effective Higgs-gluon-gluon coupling. We present results for distributions related to the event-shape variables thrust minor, light-hemisphere mass, narrow jet broadening, $D$-parameter, and Durham four-to-three-jet transition variable. For each of these observables we study the impact of higher-order corrections and compare their size and shape in the two Higgs-decay categories. We find large NLO corrections with a visible shape difference between the two decay modes, leading to a significant shift of the peak in distributions related to the $H\to gg$ decay mode. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2310_09354 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Four-jet event shapes in hadronic Higgs decays Ridder, Aude Gehrmann-De Preuss, Christian T Williams, Ciaran High Energy Physics - Phenomenology We present next-to-leading order perturbative QCD predictions for four-jet-like event-shape observables in hadronic Higgs decays. To this end, we take into account two Higgs-decay categories: involving either the Yukawa-induced decay to a $b\bar{b}$ pair or the loop-induced decay to two gluons via an effective Higgs-gluon-gluon coupling. We present results for distributions related to the event-shape variables thrust minor, light-hemisphere mass, narrow jet broadening, $D$-parameter, and Durham four-to-three-jet transition variable. For each of these observables we study the impact of higher-order corrections and compare their size and shape in the two Higgs-decay categories. We find large NLO corrections with a visible shape difference between the two decay modes, leading to a significant shift of the peak in distributions related to the $H\to gg$ decay mode. |
| title | Four-jet event shapes in hadronic Higgs decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2310.09354 |