Running of αs and mb in the MSSM
A consistent evolution of the strong coupling constant αs from MZ to the grand unified theory (GUT) scale is presented, involving three-loop running and two-loop decoupling. The two-loop transition from the MS- to the DR-scheme is properly taken into account. In the second part of the paper, the bot...
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| Hauptverfasser: | , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
7 September 2007
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| In: |
Physical review. D, Particles, fields, gravitation, and cosmology
Year: 2007, Jahrgang: 76, Heft: 5 |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.76.055002 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevD.76.055002 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevD.76.055002 
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| Verfasserangaben: | R.V. Harlander, L. Mihaila, and M. Steinhauser |
| Zusammenfassung: | A consistent evolution of the strong coupling constant αs from MZ to the grand unified theory (GUT) scale is presented, involving three-loop running and two-loop decoupling. The two-loop transition from the MS- to the DR-scheme is properly taken into account. In the second part of the paper, the bottom quark mass in the DR-scheme at the electroweak/supersymmetry (SUSY) scale is evaluated with four-loop accuracy. We find that the three-loop effects are comparable to the experimental uncertainty both for αs and mb. |
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| Beschreibung: | Im Titel sind "s" und "b" tiefgestellt Gesehen am 12.02.2018 |
| Beschreibung: | Online Resource |
| ISSN: | 1550-2368 |
| DOI: | 10.1103/PhysRevD.76.055002 |