Classifying the CP properties of the ggH coupling in H + 2j production
The Higgs-gluon interaction is crucial for LHC phenomenology. To improve the constraints on the $\mathcal{CP}$ structure of this coupling, we investigate Higgs production with two jets using machine learning. In particular, we exploit the $\mathcal{CP}$ sensitivity of the so far neglected phase spac...
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| Format: | Article |
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2025-01-01
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| Series: | SciPost Physics Core |
| Online Access: | https://scipost.org/SciPostPhysCore.8.1.006 |
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| author | Henning Bahl, Elina Fuchs, Marc Hannig, Marco Menen |
| author_facet | Henning Bahl, Elina Fuchs, Marc Hannig, Marco Menen |
| author_sort | Henning Bahl, Elina Fuchs, Marc Hannig, Marco Menen |
| collection | DOAJ |
| description | The Higgs-gluon interaction is crucial for LHC phenomenology. To improve the constraints on the $\mathcal{CP}$ structure of this coupling, we investigate Higgs production with two jets using machine learning. In particular, we exploit the $\mathcal{CP}$ sensitivity of the so far neglected phase space region that differs from the typical vector boson fusion-like kinematics. Our results indicate that further improvements in the current experimental limits could be achievable using our techniques. We also discuss the most relevant observables and how $\mathcal{CP}$ violation in the Higgs–gluon interaction can be disentangled from $\mathcal{CP}$ violation in the interaction between the Higgs boson and massive vector bosons. Assuming the absence of $\mathcal{CP}$-violating Higgs interactions with coloured beyond-the-Standard-Model states, our projected limits on a $\mathcal{CP}$-violating top-Yukawa coupling are competitive with more direct probes like top-associated Higgs production and limits from a global fit. |
| format | Article |
| id | doaj-art-2d4a66a5948b4919a1348837479ef2c7 |
| institution | Kabale University |
| issn | 2666-9366 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | SciPost |
| record_format | Article |
| series | SciPost Physics Core |
| spelling | doaj-art-2d4a66a5948b4919a1348837479ef2c72025-01-20T14:10:13ZengSciPostSciPost Physics Core2666-93662025-01-018100610.21468/SciPostPhysCore.8.1.006Classifying the CP properties of the ggH coupling in H + 2j productionHenning Bahl, Elina Fuchs, Marc Hannig, Marco MenenThe Higgs-gluon interaction is crucial for LHC phenomenology. To improve the constraints on the $\mathcal{CP}$ structure of this coupling, we investigate Higgs production with two jets using machine learning. In particular, we exploit the $\mathcal{CP}$ sensitivity of the so far neglected phase space region that differs from the typical vector boson fusion-like kinematics. Our results indicate that further improvements in the current experimental limits could be achievable using our techniques. We also discuss the most relevant observables and how $\mathcal{CP}$ violation in the Higgs–gluon interaction can be disentangled from $\mathcal{CP}$ violation in the interaction between the Higgs boson and massive vector bosons. Assuming the absence of $\mathcal{CP}$-violating Higgs interactions with coloured beyond-the-Standard-Model states, our projected limits on a $\mathcal{CP}$-violating top-Yukawa coupling are competitive with more direct probes like top-associated Higgs production and limits from a global fit.https://scipost.org/SciPostPhysCore.8.1.006 |
| spellingShingle | Henning Bahl, Elina Fuchs, Marc Hannig, Marco Menen Classifying the CP properties of the ggH coupling in H + 2j production SciPost Physics Core |
| title | Classifying the CP properties of the ggH coupling in H + 2j production |
| title_full | Classifying the CP properties of the ggH coupling in H + 2j production |
| title_fullStr | Classifying the CP properties of the ggH coupling in H + 2j production |
| title_full_unstemmed | Classifying the CP properties of the ggH coupling in H + 2j production |
| title_short | Classifying the CP properties of the ggH coupling in H + 2j production |
| title_sort | classifying the cp properties of the ggh coupling in h 2j production |
| url | https://scipost.org/SciPostPhysCore.8.1.006 |
| work_keys_str_mv | AT henningbahlelinafuchsmarchannigmarcomenen classifyingthecppropertiesofthegghcouplinginh2jproduction |