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期刊论文
RADIATIVE CORRECTIONS TO THE Zbb- and ZT+T− VERTICES IN A REALISTIC ONE-FAMILY EXTENDED TECHNICOLOR MODEL
TUIMP-TH-95/62 February 1995,-0001,():
In a realistic effective one-family extended technicolor (ETC) model without exact custodial sym-metry, we calculate the one-loop corrections to the Zb-b and Zτ+τ− vertices from the sideways and diagonal ETC bosons exchange. The result shows that both the Z → b¯b partial width b (and branching ratio Rb ) and the τ polarization asymmetry parameter A are enhanced by the corrections and are in agreement with the present experimental data.
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