Searching for the vector-like X-quark at the future electron–proton colliders
Abstract In a simplified model including an exotic vector-like X-quark (VLQ-X) with electric charge 5/3, we investigate the process $$e^{+}p \rightarrow \bar{\nu }_{e}X+\bar{\nu }_{e}X\bar{t}$$ e + p → ν ¯ e X + ν ¯ e X t ¯ induced by the couplings between the VLQ-X and the first- and third-generati...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-11-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13475-1 |
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| _version_ | 1846100978608111616 |
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| author | Yan-Ju Zhang Yong-Tao Zhu Lin Han Yan-Ping Bi Tai-Gang Liu |
| author_facet | Yan-Ju Zhang Yong-Tao Zhu Lin Han Yan-Ping Bi Tai-Gang Liu |
| author_sort | Yan-Ju Zhang |
| collection | DOAJ |
| description | Abstract In a simplified model including an exotic vector-like X-quark (VLQ-X) with electric charge 5/3, we investigate the process $$e^{+}p \rightarrow \bar{\nu }_{e}X+\bar{\nu }_{e}X\bar{t}$$ e + p → ν ¯ e X + ν ¯ e X t ¯ induced by the couplings between the VLQ-X and the first- and third-generation quarks at the future ep colliders. We further explore the prospects of discovering the VLQ-X via the $$X\rightarrow tW$$ X → t W decay model at the electron–hadron Future Circular Collider (FCC-eh) with its proposed 60 GeV electron beam and 50 TeV proton beam. We focus our analysis on the final states, including two same-sign lepton (electrons or muons) or $$\mu \mu $$ μ μ pairs, at least one b-tagged jet, and large missing transverse momentum. By performing a detailed signal-to-background analysis and detector simulations, the 95% confidence level exclusion limits and $$5\sigma $$ 5 σ discovery reaches are presented in terms of parameter space regions. |
| format | Article |
| id | doaj-art-5d91d6aa29c84a3d97ad0d7a01b60b45 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-5d91d6aa29c84a3d97ad0d7a01b60b452024-12-29T12:43:09ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-11-01841111110.1140/epjc/s10052-024-13475-1Searching for the vector-like X-quark at the future electron–proton collidersYan-Ju Zhang0Yong-Tao Zhu1Lin Han2Yan-Ping Bi3Tai-Gang Liu4School of Biomedical Engineering, Xinxiang Medical UniversitySchool of Biomedical Engineering, Xinxiang Medical UniversitySchool of Biomedical Engineering, Xinxiang Medical UniversitySchool of Biomedical Engineering, Xinxiang Medical UniversitySchool of Biomedical Engineering, Xinxiang Medical UniversityAbstract In a simplified model including an exotic vector-like X-quark (VLQ-X) with electric charge 5/3, we investigate the process $$e^{+}p \rightarrow \bar{\nu }_{e}X+\bar{\nu }_{e}X\bar{t}$$ e + p → ν ¯ e X + ν ¯ e X t ¯ induced by the couplings between the VLQ-X and the first- and third-generation quarks at the future ep colliders. We further explore the prospects of discovering the VLQ-X via the $$X\rightarrow tW$$ X → t W decay model at the electron–hadron Future Circular Collider (FCC-eh) with its proposed 60 GeV electron beam and 50 TeV proton beam. We focus our analysis on the final states, including two same-sign lepton (electrons or muons) or $$\mu \mu $$ μ μ pairs, at least one b-tagged jet, and large missing transverse momentum. By performing a detailed signal-to-background analysis and detector simulations, the 95% confidence level exclusion limits and $$5\sigma $$ 5 σ discovery reaches are presented in terms of parameter space regions.https://doi.org/10.1140/epjc/s10052-024-13475-1 |
| spellingShingle | Yan-Ju Zhang Yong-Tao Zhu Lin Han Yan-Ping Bi Tai-Gang Liu Searching for the vector-like X-quark at the future electron–proton colliders European Physical Journal C: Particles and Fields |
| title | Searching for the vector-like X-quark at the future electron–proton colliders |
| title_full | Searching for the vector-like X-quark at the future electron–proton colliders |
| title_fullStr | Searching for the vector-like X-quark at the future electron–proton colliders |
| title_full_unstemmed | Searching for the vector-like X-quark at the future electron–proton colliders |
| title_short | Searching for the vector-like X-quark at the future electron–proton colliders |
| title_sort | searching for the vector like x quark at the future electron proton colliders |
| url | https://doi.org/10.1140/epjc/s10052-024-13475-1 |
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