- Abstract:
-
We point out that the precision measurements of the pseudo observables R_b^0, A_b, and A_FB^0,b performed at LEP and SLC suggest that in models with minimal-flavor-violation the sign of the Z-penguin amplitude is identical to the one present in the standard model. We determine the allowed range for the non-standard contribution to the Inami-Lim function C and show by analyzing possible scenarios with positive and negative interference of standard model and new physics contributions, that the ...
Expand abstract - Publisher copy:
- 10.1103/PhysRevD.76.074027
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- Journal:
- Phys.Rev.D
- Volume:
- 76
- Pages:
- 074027
- Publication date:
- 2007-06-14
- DOI:
- URN:
-
uuid:7bd266eb-6665-48fa-a815-23f2dbe0f075
- Source identifiers:
-
177532
- Local pid:
- pubs:177532
- Copyright date:
- 2007
- Notes:
-
20 pages, 5 pdf figures, 5 tables, uses pdflatex; further typos
corrected, matches PRD version
Journal article
Determining the Sign of the Z-Penguin Amplitude
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