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Multiscalar amplitudes to all orders in perturbation theory
A method for calculating loop amplitudes at the multiboson threshold is presented, based on Feynman-diagram techniques. We explicitly calculate the one-loop amplitudes in both $\phi^4$-symmetric and broken symmetry cases, using dimensional regularization. We argue that, to all orders in the perturba...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
1993
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1016/0370-2693(93)91287-W http://cds.cern.ch/record/560064 |
| _version_ | 1780899049239478272 |
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| author | Argyres, E.N. Kleiss, Ronald H.P. Papadopoulos, Costas G. |
| author_facet | Argyres, E.N. Kleiss, Ronald H.P. Papadopoulos, Costas G. |
| author_sort | Argyres, E.N. |
| collection | CERN |
| description | A method for calculating loop amplitudes at the multiboson threshold is presented, based on Feynman-diagram techniques. We explicitly calculate the one-loop amplitudes in both $\phi^4$-symmetric and broken symmetry cases, using dimensional regularization. We argue that, to all orders in the perturbation expansion, the unitarity-violating behaviour of the tree-order amplitudes persists. |
| id | cern-560064 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1993 |
| record_format | invenio |
| spelling | cern-5600642020-07-23T21:24:44Zdoi:10.1016/0370-2693(93)91287-Whttp://cds.cern.ch/record/560064engArgyres, E.N.Kleiss, Ronald H.P.Papadopoulos, Costas G.Multiscalar amplitudes to all orders in perturbation theoryParticle Physics - PhenomenologyA method for calculating loop amplitudes at the multiboson threshold is presented, based on Feynman-diagram techniques. We explicitly calculate the one-loop amplitudes in both $\phi^4$-symmetric and broken symmetry cases, using dimensional regularization. We argue that, to all orders in the perturbation expansion, the unitarity-violating behaviour of the tree-order amplitudes persists.A method for calculating loop amplitudes at the multiboson threshold is presented, based on Feynman-diagram techniques. We explicitly calculate the one-loop amplitudes in both $\phi~4$-symmetric and broken symmetry cases, using dimensional regularization. We argue that, to all orders in the perturbation expansion, the unitarity-violating behaviour of the tree-order amplitudes persists.A method for calculating loop amplitudes at the multiboson threshold is presented, based on Feynman-diagram techniques. We explicitly calculate the one-loop amplitudes in both φ 4 -symmetric and broken symmetry cases, using dimensional regularization. We argue that, to all orders in the perturbation expansion, the unitarity-violating behaviour of the tree-order amplitudes persists.hep-ph/9303321CERN-TH-6852-93CERN-TH-6852-93oai:cds.cern.ch:5600641993 |
| spellingShingle | Particle Physics - Phenomenology Argyres, E.N. Kleiss, Ronald H.P. Papadopoulos, Costas G. Multiscalar amplitudes to all orders in perturbation theory |
| title | Multiscalar amplitudes to all orders in perturbation theory |
| title_full | Multiscalar amplitudes to all orders in perturbation theory |
| title_fullStr | Multiscalar amplitudes to all orders in perturbation theory |
| title_full_unstemmed | Multiscalar amplitudes to all orders in perturbation theory |
| title_short | Multiscalar amplitudes to all orders in perturbation theory |
| title_sort | multiscalar amplitudes to all orders in perturbation theory |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1016/0370-2693(93)91287-W http://cds.cern.ch/record/560064 |
| work_keys_str_mv | AT argyresen multiscalaramplitudestoallordersinperturbationtheory AT kleissronaldhp multiscalaramplitudestoallordersinperturbationtheory AT papadopouloscostasg multiscalaramplitudestoallordersinperturbationtheory |