Flavor violating Higgs and $Z$ decays at FCC-ee
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arXiv
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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2023
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| _version_ | 1866911951484878848 |
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| author | Kamenik, Jernej F. Korajac, Arman Szewc, Manuel Tammaro, Michele Zupan, Jure |
| author_facet | Kamenik, Jernej F. Korajac, Arman Szewc, Manuel Tammaro, Michele Zupan, Jure |
| contents | Recent advances in $b$, $c$, and $s$ quark tagging coupled with novel statistical analysis techniques will allow future high energy and high statistics electron-positron colliders, such as the FCC-ee, to place phenomenologically relevant bounds on flavor violating Higgs and $Z$ decays to quarks. We assess the FCC-ee reach for $Z/h\to bs, cu$ decays as a function of jet tagging performance. We also update the SM predictions for the corresponding branching ratios, as well as the indirect constraints on the flavor violating Higgs and $Z$ couplings to quarks. Using type III two Higgs doublet model as an example of beyond the standard model physics, we show that the searches for $h\to bs, cu$ decays at FCC-ee can probe new parameter space not excluded by indirect searches. We also reinterpret the FCC-ee reach for $Z\to bs , cu$ in terms of the constraints on models with vectorlike quarks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2306_17520 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Flavor violating Higgs and $Z$ decays at FCC-ee Kamenik, Jernej F. Korajac, Arman Szewc, Manuel Tammaro, Michele Zupan, Jure High Energy Physics - Phenomenology Recent advances in $b$, $c$, and $s$ quark tagging coupled with novel statistical analysis techniques will allow future high energy and high statistics electron-positron colliders, such as the FCC-ee, to place phenomenologically relevant bounds on flavor violating Higgs and $Z$ decays to quarks. We assess the FCC-ee reach for $Z/h\to bs, cu$ decays as a function of jet tagging performance. We also update the SM predictions for the corresponding branching ratios, as well as the indirect constraints on the flavor violating Higgs and $Z$ couplings to quarks. Using type III two Higgs doublet model as an example of beyond the standard model physics, we show that the searches for $h\to bs, cu$ decays at FCC-ee can probe new parameter space not excluded by indirect searches. We also reinterpret the FCC-ee reach for $Z\to bs , cu$ in terms of the constraints on models with vectorlike quarks. |
| title | Flavor violating Higgs and $Z$ decays at FCC-ee |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2306.17520 |