Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond
Fuente:
arXiv
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Preprint |
| Published: |
2023
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916801283096576 |
|---|---|
| author | Stylianou, Panagiotis Weiglein, Georg |
| author_facet | Stylianou, Panagiotis Weiglein, Georg |
| contents | Experimental information on the trilinear Higgs boson self-coupling $κ_3$ and the quartic self-coupling $κ_4$ 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 $κ_3$, triple Higgs production processes, despite their small cross sections, will provide valuable complementary information on $κ_3$ and first experimental constraints on $κ_4$. 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_04646 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond Stylianou, Panagiotis Weiglein, Georg High Energy Physics - Phenomenology High Energy Physics - Experiment Experimental information on the trilinear Higgs boson self-coupling $κ_3$ and the quartic self-coupling $κ_4$ 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 $κ_3$, triple Higgs production processes, despite their small cross sections, will provide valuable complementary information on $κ_3$ and first experimental constraints on $κ_4$. 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. |
| title | Constraints on the trilinear and quartic Higgs couplings from triple Higgs production at the LHC and beyond |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2312.04646 |