A practical approach to the problem of the missing imaginary part of the handbag diagram in the confined Bethe-Salpeter framework
| dc.creator | Ishii, Noriyoshi | |
| dc.date | 2003-06-06 | |
| dc.date.accessioned | 2026-07-07T05:39:37Z | |
| dc.date.available | 2026-07-07T05:39:37Z | |
| dc.description | In the confined Bethe-Salpeter (BS) methods, the quark propagator is an entire function. Hence, the imaginary part of the handbag diagram disappears, leading to a problem of the vanishing parton distribution function (PDF). In contrast, the direct calculation of the light-cone (LC) momentum distribution does give a non-vanishing result even in the confined BS framework. We consider their precise relation and difference, and propose to use the latter as a practical approach to this problem. Our formalism is general enough to be applied to various effective models. | |
| dc.description | 4 pages, Latex2e, 4 figures | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0306028 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0306028 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/82027 | |
| dc.subject | Nuclear Theory | |
| dc.title | A practical approach to the problem of the missing imaginary part of the handbag diagram in the confined Bethe-Salpeter framework | |
| dc.type | text |