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Ambiguities in hard-photon theorems for radiative pi N scattering
Recently developed hard-photon theorems, used to parametrize off-shell effects in radiative pion-nucleon scattering, are shown to suffer from ambiguities in terms of order k in an expansion in photon energy. These ambiguities can be shown to arise primarily from the arbitrary choice of parameters us...
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| Lenguaje: | eng |
| Publicado: |
1975
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| Acceso en línea: | https://dx.doi.org/10.1016/0550-3213(75)90101-7 http://cds.cern.ch/record/873279 |
| _version_ | 1780907666214748160 |
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| author | Piccioto, C |
| author_facet | Piccioto, C |
| author_sort | Piccioto, C |
| collection | CERN |
| description | Recently developed hard-photon theorems, used to parametrize off-shell effects in radiative pion-nucleon scattering, are shown to suffer from ambiguities in terms of order k in an expansion in photon energy. These ambiguities can be shown to arise primarily from the arbitrary choice of parameters used to describe the strong amplitude. As expected from Low's soft-photon theorem, terms up to order k/sup 0/ are not affected by the choice of parameters. (7 refs). |
| id | cern-873279 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 1975 |
| record_format | invenio |
| spelling | cern-8732792019-09-30T06:29:59Zdoi:10.1016/0550-3213(75)90101-7http://cds.cern.ch/record/873279engPiccioto, CAmbiguities in hard-photon theorems for radiative pi N scatteringParticle Physics - PhenomenologyRecently developed hard-photon theorems, used to parametrize off-shell effects in radiative pion-nucleon scattering, are shown to suffer from ambiguities in terms of order k in an expansion in photon energy. These ambiguities can be shown to arise primarily from the arbitrary choice of parameters used to describe the strong amplitude. As expected from Low's soft-photon theorem, terms up to order k/sup 0/ are not affected by the choice of parameters. (7 refs).oai:cds.cern.ch:8732791975 |
| spellingShingle | Particle Physics - Phenomenology Piccioto, C Ambiguities in hard-photon theorems for radiative pi N scattering |
| title | Ambiguities in hard-photon theorems for radiative pi N scattering |
| title_full | Ambiguities in hard-photon theorems for radiative pi N scattering |
| title_fullStr | Ambiguities in hard-photon theorems for radiative pi N scattering |
| title_full_unstemmed | Ambiguities in hard-photon theorems for radiative pi N scattering |
| title_short | Ambiguities in hard-photon theorems for radiative pi N scattering |
| title_sort | ambiguities in hard-photon theorems for radiative pi n scattering |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1016/0550-3213(75)90101-7 http://cds.cern.ch/record/873279 |
| work_keys_str_mv | AT picciotoc ambiguitiesinhardphotontheoremsforradiativepinscattering |