Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond
Abstract Experimental information on the trilinear Higgs boson self-coupling $$\kappa _3$$ κ 3 and the quartic self-coupling $$\kappa _4$$ κ 4 will be crucial for gaining insight into the shape of the Higgs potential and the nature of the electroweak phase transition. While Higgs pair production pro...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-04-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-12722-9 |
| _version_ | 1797209127496187904 |
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| author | Panagiotis Stylianou Georg Weiglein |
| author_facet | Panagiotis Stylianou Georg Weiglein |
| author_sort | Panagiotis Stylianou |
| collection | DOAJ |
| description | Abstract Experimental information on the trilinear Higgs boson self-coupling $$\kappa _3$$ κ 3 and the quartic self-coupling $$\kappa _4$$ κ 4 will be crucial for gaining insight into the shape of the Higgs potential and the nature of the electroweak phase transition. While Higgs pair production processes provide access to $$\kappa _3$$ κ 3 , triple Higgs production processes, despite their small cross sections, will provide valuable complementary information on $$\kappa _3$$ κ 3 and first experimental constraints on $$\kappa _4$$ κ 4 . We investigate triple Higgs boson production at the HL-LHC, employing efficient Graph Neural Network methodologies to maximise the statistical yield. We show that it will be possible to establish bounds on the variation of both couplings from the HL-LHC analyses that significantly go beyond the constraints from perturbative unitarity. We also discuss the prospects for the analysis of triple Higgs production at future high-energy lepton colliders operating at the TeV scale. |
| first_indexed | 2024-04-24T09:49:46Z |
| format | Article |
| id | doaj.art-43da6b118217461b96939ea858050538 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-04-24T09:49:46Z |
| publishDate | 2024-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-43da6b118217461b96939ea8580505382024-04-14T11:26:03ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-04-0184411510.1140/epjc/s10052-024-12722-9Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyondPanagiotis Stylianou0Georg Weiglein1Deutsches Elektronen-Synchrotron DESYDeutsches Elektronen-Synchrotron DESYAbstract Experimental information on the trilinear Higgs boson self-coupling $$\kappa _3$$ κ 3 and the quartic self-coupling $$\kappa _4$$ κ 4 will be crucial for gaining insight into the shape of the Higgs potential and the nature of the electroweak phase transition. While Higgs pair production processes provide access to $$\kappa _3$$ κ 3 , triple Higgs production processes, despite their small cross sections, will provide valuable complementary information on $$\kappa _3$$ κ 3 and first experimental constraints on $$\kappa _4$$ κ 4 . We investigate triple Higgs boson production at the HL-LHC, employing efficient Graph Neural Network methodologies to maximise the statistical yield. We show that it will be possible to establish bounds on the variation of both couplings from the HL-LHC analyses that significantly go beyond the constraints from perturbative unitarity. We also discuss the prospects for the analysis of triple Higgs production at future high-energy lepton colliders operating at the TeV scale.https://doi.org/10.1140/epjc/s10052-024-12722-9 |
| spellingShingle | Panagiotis Stylianou Georg Weiglein Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond European Physical Journal C: Particles and Fields |
| title | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond |
| title_full | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond |
| title_fullStr | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond |
| title_full_unstemmed | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond |
| title_short | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond |
| title_sort | constraints on the trilinear and quartic higgs couplings from triple higgs production at the lhc and beyond |
| url | https://doi.org/10.1140/epjc/s10052-024-12722-9 |
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