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| Auteurs principaux: | , , , , |
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| Format: | Preprint |
| Publié: |
2024
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| Sujets: | |
| Accès en ligne: | https://arxiv.org/abs/2406.04040 |
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| _version_ | 1866914827497111552 |
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| author | Mękała, Krzysztof Jeans, Daniel Tian, Junping Reuter, Jürgen Żarnecki, Aleksander Filip |
| author_facet | Mękała, Krzysztof Jeans, Daniel Tian, Junping Reuter, Jürgen Żarnecki, Aleksander Filip |
| contents | Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes to New Physics. Accurate studies of the Z-boson couplings to the first-generation quarks could reveal potential discrepancies between the fundamental theory and experimental data. Future lepton colliders offering high statistics of Z bosons would be an excellent tool to perform such a measurement based on comparison of radiative and non-radiative hadronic decays of the Z boson. Due to the difference in quark charge, the relative contribution of the events with final-state radiation (FSR) directly reflects the ratio of up- and down-type quark decays. Such an analysis requires a proper distinction between photons coming from different sources, including initial-state radiation (ISR), FSR, parton showers and hadronisation. In our talk, we will show how to extract the values of the Z couplings to quarks and present preliminary results of the analysis for ILC. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_04040 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Precise measurement of light-quark electroweak couplings at future colliders Mękała, Krzysztof Jeans, Daniel Tian, Junping Reuter, Jürgen Żarnecki, Aleksander Filip High Energy Physics - Phenomenology Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes to New Physics. Accurate studies of the Z-boson couplings to the first-generation quarks could reveal potential discrepancies between the fundamental theory and experimental data. Future lepton colliders offering high statistics of Z bosons would be an excellent tool to perform such a measurement based on comparison of radiative and non-radiative hadronic decays of the Z boson. Due to the difference in quark charge, the relative contribution of the events with final-state radiation (FSR) directly reflects the ratio of up- and down-type quark decays. Such an analysis requires a proper distinction between photons coming from different sources, including initial-state radiation (ISR), FSR, parton showers and hadronisation. In our talk, we will show how to extract the values of the Z couplings to quarks and present preliminary results of the analysis for ILC. |
| title | Precise measurement of light-quark electroweak couplings at future colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.04040 |