Higgs boson production in association with massive bottom quarks at NNLO+PS
Abstract We study the production of a Higgs boson in association with a bottom-quark pair b b ¯ H $$ \left(b\overline{b}H\right) $$ at hadron colliders. Our calculation is performed in the four-flavour scheme with massive bottom quarks. This work presents the first computation of next-to-next-to-lea...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-04-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP04(2025)088 |
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| _version_ | 1849312970761306112 |
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| author | Christian Biello Javier Mazzitelli Aparna Sankar Marius Wiesemann Giulia Zanderighi |
| author_facet | Christian Biello Javier Mazzitelli Aparna Sankar Marius Wiesemann Giulia Zanderighi |
| author_sort | Christian Biello |
| collection | DOAJ |
| description | Abstract We study the production of a Higgs boson in association with a bottom-quark pair b b ¯ H $$ \left(b\overline{b}H\right) $$ at hadron colliders. Our calculation is performed in the four-flavour scheme with massive bottom quarks. This work presents the first computation of next-to-next-to-leading-order (NNLO) QCD corrections to this process, and we combine them with all-order radiative corrections from a parton shower simulation (NNLO+PS). The calculation is exact, except for the two-loop amplitude, which is evaluated in the small quark mass expansion, which is an excellent approximation for bottom quarks at LHC energies. For the NNLO+PS matching, we employ the MiNNLOPS method for heavy-quark plus colour-singlet production within the Powheg framework. We present an extensive phenomenological analysis both at the inclusive level and considering bottom jets using flavour-tagging algorithms. By comparing four-flavour and five-flavour scheme predictions at NNLO+PS, we find that the NNLO corrections in the four-flavour scheme resolve the long-standing tension between the two schemes. Finally, we show that our NNLO+PS predictions also have important implications on modelling the b b ¯ H $$ b\overline{b}H $$ background in Higgs-pair measurements. |
| format | Article |
| id | doaj-art-adc2bd50cdc245ee817a1e4c0167fecd |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-adc2bd50cdc245ee817a1e4c0167fecd2025-08-20T03:52:53ZengSpringerOpenJournal of High Energy Physics1029-84792025-04-012025415310.1007/JHEP04(2025)088Higgs boson production in association with massive bottom quarks at NNLO+PSChristian Biello0Javier Mazzitelli1Aparna Sankar2Marius Wiesemann3Giulia Zanderighi4Max-Planck-Institut für PhysikPSI Center for Neutron and Muon SciencesMax-Planck-Institut für PhysikMax-Planck-Institut für PhysikMax-Planck-Institut für PhysikAbstract We study the production of a Higgs boson in association with a bottom-quark pair b b ¯ H $$ \left(b\overline{b}H\right) $$ at hadron colliders. Our calculation is performed in the four-flavour scheme with massive bottom quarks. This work presents the first computation of next-to-next-to-leading-order (NNLO) QCD corrections to this process, and we combine them with all-order radiative corrections from a parton shower simulation (NNLO+PS). The calculation is exact, except for the two-loop amplitude, which is evaluated in the small quark mass expansion, which is an excellent approximation for bottom quarks at LHC energies. For the NNLO+PS matching, we employ the MiNNLOPS method for heavy-quark plus colour-singlet production within the Powheg framework. We present an extensive phenomenological analysis both at the inclusive level and considering bottom jets using flavour-tagging algorithms. By comparing four-flavour and five-flavour scheme predictions at NNLO+PS, we find that the NNLO corrections in the four-flavour scheme resolve the long-standing tension between the two schemes. Finally, we show that our NNLO+PS predictions also have important implications on modelling the b b ¯ H $$ b\overline{b}H $$ background in Higgs-pair measurements.https://doi.org/10.1007/JHEP04(2025)088Higgs ProductionHigher-Order Perturbative Calculations |
| spellingShingle | Christian Biello Javier Mazzitelli Aparna Sankar Marius Wiesemann Giulia Zanderighi Higgs boson production in association with massive bottom quarks at NNLO+PS Journal of High Energy Physics Higgs Production Higher-Order Perturbative Calculations |
| title | Higgs boson production in association with massive bottom quarks at NNLO+PS |
| title_full | Higgs boson production in association with massive bottom quarks at NNLO+PS |
| title_fullStr | Higgs boson production in association with massive bottom quarks at NNLO+PS |
| title_full_unstemmed | Higgs boson production in association with massive bottom quarks at NNLO+PS |
| title_short | Higgs boson production in association with massive bottom quarks at NNLO+PS |
| title_sort | higgs boson production in association with massive bottom quarks at nnlo ps |
| topic | Higgs Production Higher-Order Perturbative Calculations |
| url | https://doi.org/10.1007/JHEP04(2025)088 |
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