TY - JOUR
T1 - Triviality, perturbation theory and Z → bb
AU - Aoki, Kenichiro
AU - Peris, Santiago
N1 - Funding Information:
K.A. would like to thank the hospitality of UCLA where a part of this work was conducted. The work of K.A. was supported in part by the Grant in Aid for Scientitic Research from the Ministry of Education, Science and Culture.
PY - 1994/9/8
Y1 - 1994/9/8
N2 - We compute the large-mt contributions to the Zbb vertex in the Standard Model non-perturbatively using both the 1/Nc and the 1/NF expansions. Triviality and its consequences for the perturbative result are systematically analyzed. In particular, we point out that the effect of triviality is already important at the two-loop level for a heavy Higgs (600 GeV < MH < 1 TeV) even when the top mass is below 200 GeV.
AB - We compute the large-mt contributions to the Zbb vertex in the Standard Model non-perturbatively using both the 1/Nc and the 1/NF expansions. Triviality and its consequences for the perturbative result are systematically analyzed. In particular, we point out that the effect of triviality is already important at the two-loop level for a heavy Higgs (600 GeV < MH < 1 TeV) even when the top mass is below 200 GeV.
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U2 - 10.1016/0370-2693(94)90379-4
DO - 10.1016/0370-2693(94)90379-4
M3 - Article
AN - SCOPUS:0346223352
VL - 335
SP - 470
EP - 478
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
SN - 0370-2693
IS - 3-4
ER -