[Omicron] (α2S) corrections to fermionic Higgs decays in the MSSM
We compute the two-loop corrections of O(α2s)O(αs2) \mathcal{O}\left( {\alpha_s^2} \right) to the Yukawa couplings in the framework of the Minimal Supersymmetric Standard Model (MSSM). The calculation is performed using the effective Lagrangian approach under the approximation of neglecting the Higg...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
August 4, 2010
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| In: |
Journal of high energy physics
Year: 2010, Issue: 8, Pages: 21 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2010)021 |
| Online Access: | Verlag, kostenfrei, Volltext: http://dx.doi.org/10.1007/JHEP08(2010)021 Verlag, kostenfrei, Volltext: https://link.springer.com/article/10.1007/JHEP08(2010)021 
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| Author Notes: | L. Mihaila and C. Reißer |
| Summary: | We compute the two-loop corrections of O(α2s)O(αs2) \mathcal{O}\left( {\alpha_s^2} \right) to the Yukawa couplings in the framework of the Minimal Supersymmetric Standard Model (MSSM). The calculation is performed using the effective Lagrangian approach under the approximation of neglecting the Higgs boson mass with respect to the top quark, gluino and all squark flavour masses. As an application we derive the O(α2s)O(αs2) \mathcal{O}\left( {\alpha_s^2} \right) corrections to the partial decay width of the lightest Higgs boson to a bottom quark pair. We find that the two-loop corrections are sizable for large values of tan β and low CP-odd Higgs boson mass. With our calculation of the O(α2s)O(αs2) \mathcal{O}\left( {\alpha_s^2} \right) corrections the remaining theoretical uncertainties reduce below a few percent. |
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| Item Description: | Im Titel werden "Omicron" und "alpha" als griechische Buchstaben dargestellt Im Titel ist "2" hoch- und "S" tiefgestellt Gesehen am 28.11.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2010)021 |