Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay
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...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2022-07-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP07(2022)008 |
| _version_ | 1811323460337532928 |
|---|---|
| author | Silvia Zanoli Mauro Chiesa Emanuele Re Marius Wiesemann Giulia Zanderighi |
| author_facet | Silvia Zanoli Mauro Chiesa Emanuele Re Marius Wiesemann Giulia Zanderighi |
| author_sort | Silvia Zanoli |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-13T13:55:30Z |
| format | Article |
| id | doaj.art-723eace3c6e64e07bb5eccc9764b30f3 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-13T13:55:30Z |
| publishDate | 2022-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-723eace3c6e64e07bb5eccc9764b30f32022-12-22T02:44:12ZengSpringerOpenJournal of High Energy Physics1029-84792022-07-012022713710.1007/JHEP07(2022)008Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decaySilvia Zanoli0Mauro Chiesa1Emanuele Re2Marius Wiesemann3Giulia Zanderighi4Max-Planck-Institut für PhysikDipartimento di Fisica, Università di Pavia, and INFN, Sezione di PaviaINFN, Sezione di Milano - Bicocca, and Università di Milano – BicoccaMax-Planck-Institut für PhysikMax-Planck-Institut für PhysikAbstract 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.https://doi.org/10.1007/JHEP07(2022)008Higgs ProductionHigher-Order Perturbative CalculationsParton ShowerResummation |
| spellingShingle | Silvia Zanoli Mauro Chiesa Emanuele Re Marius Wiesemann Giulia Zanderighi Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay Journal of High Energy Physics Higgs Production Higher-Order Perturbative Calculations Parton Shower Resummation |
| title | Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay |
| title_full | Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay |
| title_fullStr | Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay |
| title_full_unstemmed | Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay |
| title_short | Next-to-next-to-leading order event generation for VH production with H → b b ¯ $$ b\overline{b} $$ decay |
| title_sort | next to next to leading order event generation for vh production with h b b ¯ b overline b decay |
| topic | Higgs Production Higher-Order Perturbative Calculations Parton Shower Resummation |
| url | https://doi.org/10.1007/JHEP07(2022)008 |
| work_keys_str_mv | AT silviazanoli nexttonexttoleadingordereventgenerationforvhproductionwithhbbboverlinebdecay AT maurochiesa nexttonexttoleadingordereventgenerationforvhproductionwithhbbboverlinebdecay AT emanuelere nexttonexttoleadingordereventgenerationforvhproductionwithhbbboverlinebdecay AT mariuswiesemann nexttonexttoleadingordereventgenerationforvhproductionwithhbbboverlinebdecay AT giuliazanderighi nexttonexttoleadingordereventgenerationforvhproductionwithhbbboverlinebdecay |