[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...
Gespeichert in:
| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
August 4, 2010
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| In: |
Journal of high energy physics
Year: 2010, Heft: 8, Pages: 21 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2010)021 |
| Online-Zugang: | 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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| Verfasserangaben: | L. Mihaila and C. Reißer |
MARC
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| 246 | 3 | 3 | |a Omicron (alpha 2 S) corrections to fermionic Higgs decays in the MSSM |
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| 520 | |a 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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