Search for pseudoscalar Higgs boson $A_0$ of the Bestest Little Higgs model at the LHC and FCC-hh
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| Format: | Preprint |
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2025
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| _version_ | 1866913919026593792 |
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| author | Cervantes-Baltazar, Y. Cruz-Albaro, E. Gutiérrez-Rodríguez, A. Hernández-Ruíz, M. A. Espinosa-Gómez, D. |
| author_facet | Cervantes-Baltazar, Y. Cruz-Albaro, E. Gutiérrez-Rodríguez, A. Hernández-Ruíz, M. A. Espinosa-Gómez, D. |
| contents | We analyse the sensitivity of the Large Hadron Collider (LHC) and the Future Circular Collider-hadron-hadron (FCC-hh) to the existence of pseudoscalar Higgs boson $A_0$ predicted by the Bestest Little Higgs model. We study the tree-level (two and three body) and one-loop decays of the pseudoscalar, $A_0 \to b\bar b, t \bar t, γt\bar t, γb \bar b, Zt\bar t, Zb \bar b, Wt\bar b, h_0 t \bar t, h_0 b \bar b$, and $A_0 \to γγ, γZ, ZZ, gg, WW$, respectively. In addition, we perform a phenomenological study of the production of the pseudoscalar $A_0$ via gluon fusion $gg \to A_0 \to Y$ processes, where $Y \equiv γγ, γZ, ZZ, gg, WW$. From the cross section of the processes of interest and the expected integrated luminosity of the LHC and FCC-hh, we determined the number of events that could be produced in both colliders. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_23500 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Search for pseudoscalar Higgs boson $A_0$ of the Bestest Little Higgs model at the LHC and FCC-hh Cervantes-Baltazar, Y. Cruz-Albaro, E. Gutiérrez-Rodríguez, A. Hernández-Ruíz, M. A. Espinosa-Gómez, D. High Energy Physics - Phenomenology We analyse the sensitivity of the Large Hadron Collider (LHC) and the Future Circular Collider-hadron-hadron (FCC-hh) to the existence of pseudoscalar Higgs boson $A_0$ predicted by the Bestest Little Higgs model. We study the tree-level (two and three body) and one-loop decays of the pseudoscalar, $A_0 \to b\bar b, t \bar t, γt\bar t, γb \bar b, Zt\bar t, Zb \bar b, Wt\bar b, h_0 t \bar t, h_0 b \bar b$, and $A_0 \to γγ, γZ, ZZ, gg, WW$, respectively. In addition, we perform a phenomenological study of the production of the pseudoscalar $A_0$ via gluon fusion $gg \to A_0 \to Y$ processes, where $Y \equiv γγ, γZ, ZZ, gg, WW$. From the cross section of the processes of interest and the expected integrated luminosity of the LHC and FCC-hh, we determined the number of events that could be produced in both colliders. |
| title | Search for pseudoscalar Higgs boson $A_0$ of the Bestest Little Higgs model at the LHC and FCC-hh |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2506.23500 |