Novel and Updated Bounds on Flavor-Violating Z Interactions in the Quark Sector
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866917361929420800 |
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| author | Abu-Ajamieh, Fayez Ahriche, Amine Kumbhakar, Suman Okada, Nobuchika |
| author_facet | Abu-Ajamieh, Fayez Ahriche, Amine Kumbhakar, Suman Okada, Nobuchika |
| contents | We derive bounds on the flavor-violating (FV) couplings of the $Z$ boson to quarks and present future sensitivity projections. Our analysis shows that the current bounds on the FV couplings are $\mathcal{O}(10^{-9})$ for the $Z$ couplings to $cu$ and $sd$, $\mathcal{O}(10^{-7})$ for $bd$, $\mathcal{O}(10^{-6})$ for $bs$, and $\mathcal{O}(10^{-3})$ for $tu$ and $tc$. Overall, low-energy flavor experiments provide significantly stronger constraints on these FV couplings than current collider searches. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_10525 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Novel and Updated Bounds on Flavor-Violating Z Interactions in the Quark Sector Abu-Ajamieh, Fayez Ahriche, Amine Kumbhakar, Suman Okada, Nobuchika High Energy Physics - Phenomenology High Energy Physics - Experiment We derive bounds on the flavor-violating (FV) couplings of the $Z$ boson to quarks and present future sensitivity projections. Our analysis shows that the current bounds on the FV couplings are $\mathcal{O}(10^{-9})$ for the $Z$ couplings to $cu$ and $sd$, $\mathcal{O}(10^{-7})$ for $bd$, $\mathcal{O}(10^{-6})$ for $bs$, and $\mathcal{O}(10^{-3})$ for $tu$ and $tc$. Overall, low-energy flavor experiments provide significantly stronger constraints on these FV couplings than current collider searches. |
| title | Novel and Updated Bounds on Flavor-Violating Z Interactions in the Quark Sector |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.10525 |