Weak mixing angle in the Thomson limit
| العنوان: | Weak mixing angle in the Thomson limit |
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| المؤلفون: | Rodolfo Ferro-Hernández, Jens Erler |
| المصدر: | Journal of High Energy Physics Journal of High Energy Physics, Vol 2018, Iss 3, Pp 1-23 (2018) |
| بيانات النشر: | Springer Science and Business Media LLC, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Physics, Nuclear and High Energy Physics, Current (mathematics), 010308 nuclear & particles physics, High Energy Physics::Phenomenology, FOS: Physical sciences, Perturbative QCD, Weinberg angle, 01 natural sciences, Standard Model, Momentum, Renormalization, High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph), 0103 physical sciences, lcsh:QC770-798, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, Resummation, 010306 general physics, Mixing (physics), Quark Masses and SM Parameters, Mathematical physics |
| الوصف: | We present a calculation of the weak mixing angle in the $\overline{\rm\small MS}$ renormalization scheme which is relevant for experiments performed at very low energies or momentum transfers. We include higher orders in the perturbative QCD expansion, as well as updated phenomenological and theoretical input, and obtain the result $\sin^{2}{\theta}_W(0) = 0.23868(5)(2)$ for the reference values $\alpha_s(M_Z) = 0.1182$ and $m_c(m_c) = 1.272$ GeV. The first quoted error is from the current Standard Model evaluation of the mixing angle at the $Z$ boson mass scale. The second error represents the theoretical and parametric uncertainties induced by the evolution to the Thomson limit and is discussed in detail. Comment: 22 pages, 3 figures; one formula extended with corresponding very small numerical changes; one table and four references added |
| تدمد: | 1029-8479 |
| DOI: | 10.1007/jhep03(2018)196 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33e566cb7f4f7a2ca801fa8ea8d9553c https://doi.org/10.1007/jhep03(2018)196 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....33e566cb7f4f7a2ca801fa8ea8d9553c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10298479 |
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| DOI: | 10.1007/jhep03(2018)196 |