OMICRON(G(MU)(2)M(T)(4)) ELECTROWEAK RADIATIVE-CORRECTIONS TO THE ZB(B)OVER-BAR VERTEX

Authors
DENNER A HOLLIK W LAMPE B
Citation
A. Denner et al., OMICRON(G(MU)(2)M(T)(4)) ELECTROWEAK RADIATIVE-CORRECTIONS TO THE ZB(B)OVER-BAR VERTEX, Zeitschrift fur Physik. C, Particles and fields, 60(1), 1993, pp. 193-198
Citations number
15
Categorie Soggetti
Physics, Particles & Fields
Journal title
Zeitschrift fur Physik. C, Particles and fields → ACNP
ISSN journal
01709739
Volume
60
Issue
1
Year of publication
1993
Pages
193 - 198
Database
ISI
SICI code
0170-9739(1993)60:1<193:OERTTZ>2.0.ZU;2-0
Abstract
The leading heavy-top two-loop corrections to the ZbbBAR vertex are de termined from a direct evaluation of the corresponding Feynman diagram s in the large m(t) limit. The leading one-loop top-mass effect is enh anced by [1 + G(mu)m(t)2(9-pi2/3)/(8pi2 square-root 2)]. Our calculati on confirms a recent result of Barbieri et al..