Precise calculation of MW, sin^2 theta_MSbar, and sin^2 theta_eff

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dc.creatorDegrassi, G.
dc.creatorGambino, P.
dc.creatorSirlin, A.
dc.date1996-11-19
dc.date.accessioned2026-07-07T10:33:26Z
dc.date.available2026-07-07T10:33:26Z
dc.descriptionThe two-loop O(g^4 mt^2/mw^2) corrections are incorporated in the theoretical calculation of MW, sin^2 theta_MSbar(MZ), and sin^2 theta_eff, as functions of MH. The analysis is carried out in a previously proposed MSbar formulation and two novel on-shell resummation schemes. It is found that the inclusion of the new effects sharply decreases the scheme and residual scale dependence of the calculations. QCD corrections are incorporated in two different approaches. Comparison with the world average of sin^2 theta_eff leads to MH= 127 +143 -71 GeV and MW= 80.367 +/- 0.048 GeV, with small variations among the six calculations.
dc.description10 pages, Latex, 3 tables
dc.identifierhttps://arxiv.org/abs/hep-ph/9611363
dc.identifierhttp://arxiv.org/abs/hep-ph/9611363
dc.identifierPhys.Lett.B394:188-194,1997
dc.identifierdoi:10.1016/S0370-2693(96)01677-2
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/179106
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePrecise calculation of MW, sin^2 theta_MSbar, and sin^2 theta_eff
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