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Present and Future Electroweak Precision Measurements and the Indirect Determination of the Mass of the Higgs Boson | | U. Baur
; R. Clare
; A. Denner
; J.L. Diaz Cruz
; S. Dittmaier
; J. Erler
; M. Gruenewald
; S. Heinemeyer
; U. Heintz
; M. Kraemer
; H.E. Logan
; K. Monig
; M. Narain
; M. Roth
; M. Schmitt
; D. Wackeroth
; G. Weiglein
; D.R. Wood
; J. Wudka
; | | Date: |
1 Feb 2002 | | Journal: | eConf C010630 (2001) P1WG1 | | Subject: | hep-ph | | Abstract: | We discuss the experimental and theoretical uncertainties on precision electroweak observables and their relationship to the indirect constraints on the Higgs-boson mass, $MH$, in the Standard Model (SM). The critical experimental measurements ($MW$, $sweff$, $mt$, ...) are evaluated in terms of their present uncertainties and their prospects for improved precision at future colliders, and their contribution to the constraints on $MH$. In addition, the current uncertainties of the theoretical predictions for $MW$ and $sweff$ due to missing higher order corrections are estimated and expectations and necessary theoretical improvements for future colliders are explored. The constraints from rare B decays are also discussed. Analysis of the present experimental and theoretical precisions yield a current upper bound on $MH$ of $sim 200$ GeV. Including anticipated improvements corresponding to the prospective situation at future colliders (Tevatron Run II, LHC, LC/GigaZ), we find a relative precision of about 25% to 8% (or better) is achievable in the indirect determination of $MH$. | | Source: | arXiv, hep-ph/0202001 | | Services: | Forum | Review | PDF | Favorites | |
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