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Progress on two-loop non-propagator integrals
At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg...
| Autores principales: | , |
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| Lenguaje: | eng |
| Publicado: |
2001
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/483617 |
| _version_ | 1780896888918114304 |
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| author | Gehrmann, T. Remiddi, E. |
| author_facet | Gehrmann, T. Remiddi, E. |
| author_sort | Gehrmann, T. |
| collection | CERN |
| description | At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions. |
| id | cern-483617 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2001 |
| record_format | invenio |
| spelling | cern-4836172023-03-14T18:00:16Zhttp://cds.cern.ch/record/483617engGehrmann, T.Remiddi, E.Progress on two-loop non-propagator integralsParticle Physics - PhenomenologyAt variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions.At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions.At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions.At variance with fully inclusive quantities, which have been computed already at the two- or three-loop level, most exclusive observables are still known only at one loop, as further progress was hampered up to very recently by the greater computational problems encountered in the study of multi-leg amplitudes beyond one loop. We discuss the progress made lately in the evaluation of two-loop multi-leg integrals, with particular emphasis on two-loop four-point functions.hep-ph/0101147TTP-01-04TTP-2001-04oai:cds.cern.ch:4836172001-01-15 |
| spellingShingle | Particle Physics - Phenomenology Gehrmann, T. Remiddi, E. Progress on two-loop non-propagator integrals |
| title | Progress on two-loop non-propagator integrals |
| title_full | Progress on two-loop non-propagator integrals |
| title_fullStr | Progress on two-loop non-propagator integrals |
| title_full_unstemmed | Progress on two-loop non-propagator integrals |
| title_short | Progress on two-loop non-propagator integrals |
| title_sort | progress on two-loop non-propagator integrals |
| topic | Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/483617 |
| work_keys_str_mv | AT gehrmannt progressontwoloopnonpropagatorintegrals AT remiddie progressontwoloopnonpropagatorintegrals |