Baryons with functional methods
We summarise recent results on the spectrum of ground-state and excited baryons and their form factors in the framework of functional methods. As an improvement upon similar approaches we explicitly take into account the underlying momentum-dependent dynamics of the quark-gluon interaction that lead...
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| Format: | Article |
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EDP Sciences
2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201713402007 |
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doaj-80711ad010f7409bbd03bbaae893a55e2021-08-02T20:12:12ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011340200710.1051/epjconf/201713402007epjconf_sfbtr2017_02007Baryons with functional methodsFischer Christian S.We summarise recent results on the spectrum of ground-state and excited baryons and their form factors in the framework of functional methods. As an improvement upon similar approaches we explicitly take into account the underlying momentum-dependent dynamics of the quark-gluon interaction that leads to dynamical chiral symmetry breaking. For light octet and decuplet baryons we find a spectrum in very good agreement with experiment, including the level ordering between the positive- and negative-parity nucleon states. Comparing the three-body framework with the quark-diquark approximation, we do not find significant differences in the spectrum for those states that have been calculated in both frameworks. This situation is different in the electromagnetic form factor of the Δ, which may serve to distinguish both pictures by comparison with experiment and lattice QCD.https://doi.org/10.1051/epjconf/201713402007 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Fischer Christian S. |
| spellingShingle |
Fischer Christian S. Baryons with functional methods EPJ Web of Conferences |
| author_facet |
Fischer Christian S. |
| author_sort |
Fischer Christian S. |
| title |
Baryons with functional methods |
| title_short |
Baryons with functional methods |
| title_full |
Baryons with functional methods |
| title_fullStr |
Baryons with functional methods |
| title_full_unstemmed |
Baryons with functional methods |
| title_sort |
baryons with functional methods |
| publisher |
EDP Sciences |
| series |
EPJ Web of Conferences |
| issn |
2100-014X |
| publishDate |
2017-01-01 |
| description |
We summarise recent results on the spectrum of ground-state and excited baryons and their form factors in the framework of functional methods. As an improvement upon similar approaches we explicitly take into account the underlying momentum-dependent dynamics of the quark-gluon interaction that leads to dynamical chiral symmetry breaking. For light octet and decuplet baryons we find a spectrum in very good agreement with experiment, including the level ordering between the positive- and negative-parity nucleon states. Comparing the three-body framework with the quark-diquark approximation, we do not find significant differences in the spectrum for those states that have been calculated in both frameworks. This situation is different in the electromagnetic form factor of the Δ, which may serve to distinguish both pictures by comparison with experiment and lattice QCD. |
| url |
https://doi.org/10.1051/epjconf/201713402007 |
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AT fischerchristians baryonswithfunctionalmethods |
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1721227296937869312 |