| Autor: |
Silvia Zanoli, Mauro Chiesa, Emanuele Re, Marius Wiesemann, Giulia Zanderighi |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-37 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1029-8479 |
| DOI: |
10.1007/JHEP07(2022)008 |
| Popis: |
Abstract We consider the Higgsstrahlung process in hadronic collisions and present the computation of next-to-next-to-leading order predictions matched to parton showers for both production and H → b b ¯ $$ b\overline{b} $$ decay employing the MiNNLOPS method. We present predictions for ZH and W ± H production including spin correlations and off-shell effects by calculating the full processes pp → ℓ + ℓ − H → ℓ + ℓ − b b ¯ $$ b\overline{b} $$ , pp → ν ℓ ν ¯ ℓ H $$ {\nu}_{\ell }{\overline{\nu}}_{\ell }H $$ → ν ℓ ν ¯ ℓ b b ¯ $$ {\nu}_{\ell }{\overline{\nu}}_{\ell }b\overline{b} $$ and pp → ℓ ± ν ℓ H → ℓ ± ν ¯ ℓ b b ¯ $$ {\ell}^{\pm }{\overline{\nu}}_{\ell }b\overline{b} $$ in the narrow-width approximation for the Higgs boson. For the W ± H process, NNLO+PS accuracy in production and decay is achieved for the first time. Our calculations are validated against earlier simulations in the NNLOPS approach that includes NNLO corrections via multi-differential reweighting. The new MiNNLOPS generators for these processes, which evaluate NNLO corrections on-the-fly in the event generation, will supersede those earlier calculations. Our predictions are in good agreement with recent measurements of the Higgsstrahlung cross sections. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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