Phys. Rev. D 49, 1363–1369 (1994)Oblique corrections to the W widthReceived 23 September 1993; published in the issue dated 1 February 1994 The lowest-order expression for the partial W width to eν, Γ(W→eν)=GμMW3/(6π√2), has no oblique radiative corrections from new physics if the measured W mass is used. Here Gμ=(1.16639±0.00002)×10-5 GeV/c2 is the muon decay constant. For the present value of MW=(80.14±0.27) GeV/c2, and with mt=140 GeV/c2, one expects Γ(W→eν)=(224.4±2.3) MeV. The total width Γtot(W) is also expected to lack oblique corrections from new physics, so that Γtot(W)/Γ(W→eν)=3+6[1+{αs(MW)/π} ]. Present data are consistent with this prediction. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.49.1363
DOI:
10.1103/PhysRevD.49.1363
PACS:
13.38.Be, 12.10.Dm, 12.15.Ji, 14.70.Fm
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