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| Main Authors: | , , , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2504.04037 |
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| _version_ | 1866917977667928064 |
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| author | Dong, Zhenyu Sun, Xiaohu Guo, Botao Zhang, Licheng Li, Zhiyuan Wang, Jin Li, Zhe Ban, Yong Mao, Yajun |
| author_facet | Dong, Zhenyu Sun, Xiaohu Guo, Botao Zhang, Licheng Li, Zhiyuan Wang, Jin Li, Zhe Ban, Yong Mao, Yajun |
| contents | A comprehensive study of triple Higgs boson production in the $4τ2b$ decay final state is performed for the first time at a future 100 TeV hadron collider. The analysis incorporates modified Higgs self-couplings via trilinear Higgs self-coupling $c_3$ and quartic Higgs self-coupling $d_4$, enabling for a model-independent investigation of potential new physics effects. Higgs bosons are reconstructed using both resolved and boosted techniques. To optimize sensitivity across different kinematic regions, we introduce a novel event categorization strategy based on the triple Higgs invariant mass spectrum and the multiplicity of boosted Higgs bosons. In addition to a traditional cut-based analysis, a Boosted Decision Tree (BDT) approach is employed to exploit multivariate correlations among kinematic observables, leading to a significant improvement in sensitivity. Our result demonstrates that the $4τ2b$ channel provides a viable pathway for probing the Higgs quartic coupling, complementing the existing multi-Higgs production studies, and could reach 5 $σ$ in significance for $c_3 \lesssim -1$ and $d_4 \gtrsim 10$ in the scanned range. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_04037 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Probing triple Higgs production via $4τ2b$ decay channel at a 100 TeV hadron collider Dong, Zhenyu Sun, Xiaohu Guo, Botao Zhang, Licheng Li, Zhiyuan Wang, Jin Li, Zhe Ban, Yong Mao, Yajun High Energy Physics - Phenomenology A comprehensive study of triple Higgs boson production in the $4τ2b$ decay final state is performed for the first time at a future 100 TeV hadron collider. The analysis incorporates modified Higgs self-couplings via trilinear Higgs self-coupling $c_3$ and quartic Higgs self-coupling $d_4$, enabling for a model-independent investigation of potential new physics effects. Higgs bosons are reconstructed using both resolved and boosted techniques. To optimize sensitivity across different kinematic regions, we introduce a novel event categorization strategy based on the triple Higgs invariant mass spectrum and the multiplicity of boosted Higgs bosons. In addition to a traditional cut-based analysis, a Boosted Decision Tree (BDT) approach is employed to exploit multivariate correlations among kinematic observables, leading to a significant improvement in sensitivity. Our result demonstrates that the $4τ2b$ channel provides a viable pathway for probing the Higgs quartic coupling, complementing the existing multi-Higgs production studies, and could reach 5 $σ$ in significance for $c_3 \lesssim -1$ and $d_4 \gtrsim 10$ in the scanned range. |
| title | Probing triple Higgs production via $4τ2b$ decay channel at a 100 TeV hadron collider |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2504.04037 |