Photoproduction of Excited Baryons in the 1/Nc Expansion of QCD
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| Format: | Artículo científico |
| Langue: | en |
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Sociedade Brasileira de Física
2008
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| _version_ | 1876466509144915968 |
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| author | N. N. Scoccola |
| author_facet | N. N. Scoccola |
| contents | Photoproduction of Excited Baryons in the 1/Nc Expansion of QCD N. N. Scoccola Física, Astronomía y Matemáticas Large Nc QCD Excited baryon photoproduction We present results for the photoproduction helicity amplitudes of excited baryons obtained in the context of the 1 /Nc expansion of QCD. The results show that, in order to get a satisfactory description of the observed photoproduction amplitudes, the sub-leading corrections in 1/Nc are important. We also find that, while one-body effective operators are dominant, there is some evidence for the need of two-body effects which, in general, are not included in quark model calculations. 2008 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46415795012 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.38 |
| format | Artículo científico |
| id | redalyc_46415795012 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Sociedade Brasileira de Física |
| spellingShingle | Photoproduction of Excited Baryons in the 1/Nc Expansion of QCD N. N. Scoccola Física, Astronomía y Matemáticas Large Nc QCD Excited baryon photoproduction Photoproduction of Excited Baryons in the 1/Nc Expansion of QCD N. N. Scoccola Física, Astronomía y Matemáticas Large Nc QCD Excited baryon photoproduction We present results for the photoproduction helicity amplitudes of excited baryons obtained in the context of the 1 /Nc expansion of QCD. The results show that, in order to get a satisfactory description of the observed photoproduction amplitudes, the sub-leading corrections in 1/Nc are important. We also find that, while one-body effective operators are dominant, there is some evidence for the need of two-body effects which, in general, are not included in quark model calculations. 2008 artículo científico 0103-9733 https://www.redalyc.org/articulo.oa?id=46415795012 en http://www.redalyc.org/revista.oa?id=464 Brazilian Journal of Physics application/pdf Sociedade Brasileira de Física Brazilian Journal of Physics (Brasil) Num.3B Vol.38 |
| title | Photoproduction of Excited Baryons in the 1/Nc Expansion of QCD |
| topic | Física, Astronomía y Matemáticas Large Nc QCD Excited baryon photoproduction |
| url | https://www.redalyc.org/articulo.oa?id=46415795012 |