Present and future electroweak precision measurements and the indirect determination of the mass of the Higgs boson

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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 (M{sub W}, sin{sup 2}{theta}{sub eff}, m{sub t},...) 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 M{sub W} and sin{sup 2} {theta}{sub eff} due to missing higher order corrections are estimated and expectations and necessary theoretical improvements for future colliders are ... continued below

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325 Kilobytes pages

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al., U. Baur et February 14, 2002.

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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 (M{sub W}, sin{sup 2}{theta}{sub eff}, m{sub t},...) 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 M{sub W} and sin{sup 2} {theta}{sub eff} 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 M{sub H} of {approx} 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 M{sub H}.

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325 Kilobytes pages

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  • Proceedings of Snowmass 2001, Snowmass, CO (US), 07/01/2001--07/21/2001

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  • Report No.: FERMILAB-Conf-02/010-T
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 791561
  • Archival Resource Key: ark:/67531/metadc740005

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • February 14, 2002

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 1, 2016, 4:31 p.m.

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al., U. Baur et. Present and future electroweak precision measurements and the indirect determination of the mass of the Higgs boson, article, February 14, 2002; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc740005/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.