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Triviality, perturbation theory and $Z \to b\overline{b}$
We compute the large-m_t contributions to the Zb\overline b 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 trivialit...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
1994
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(94)90379-4 http://cds.cern.ch/record/264383 |
| _version_ | 1780886496571555840 |
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| author | Aoki, K Peris, S |
| author_facet | Aoki, K Peris, S |
| author_sort | Aoki, K |
| collection | CERN |
| description | We compute the large-m_t contributions to the Zb\overline b 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<M_H<1\tev) even when the top mass is below 200\gev. |
| id | cern-264383 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1994 |
| record_format | invenio |
| spelling | cern-2643832019-09-30T06:29:59Zdoi:10.1016/0370-2693(94)90379-4http://cds.cern.ch/record/264383engAoki, KPeris, STriviality, perturbation theory and $Z \to b\overline{b}$Particle Physics - PhenomenologyWe compute the large-m_t contributions to the Zb\overline b 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<M_H<1\tev) even when the top mass is below 200\gev.hep-ph/9406290TIT-HEP-258CERN-TH-7287-94oai:cds.cern.ch:2643831994-06-12 |
| spellingShingle | Particle Physics - Phenomenology Aoki, K Peris, S Triviality, perturbation theory and $Z \to b\overline{b}$ |
| title | Triviality, perturbation theory and $Z \to b\overline{b}$ |
| title_full | Triviality, perturbation theory and $Z \to b\overline{b}$ |
| title_fullStr | Triviality, perturbation theory and $Z \to b\overline{b}$ |
| title_full_unstemmed | Triviality, perturbation theory and $Z \to b\overline{b}$ |
| title_short | Triviality, perturbation theory and $Z \to b\overline{b}$ |
| title_sort | triviality, perturbation theory and $z \to b\overline{b}$ |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1016/0370-2693(94)90379-4 http://cds.cern.ch/record/264383 |
| work_keys_str_mv | AT aokik trivialityperturbationtheoryandztoboverlineb AT periss trivialityperturbationtheoryandztoboverlineb |