A next-to-next-to-leading-order $pp \to ppπ^0$ transition operator in chiral perturbation theory
| dc.creator | Dmitrašinović, V. | |
| dc.creator | Kubodera, K. | |
| dc.creator | Myhrer, F. | |
| dc.creator | Sato, T. | |
| dc.date | 1999-02-19 | |
| dc.date | 1999-09-23 | |
| dc.date.accessioned | 2026-07-07T11:36:42Z | |
| dc.date.available | 2026-07-07T11:36:42Z | |
| dc.description | We present a systematic analysis of next-to-next-to-leading-order diagrams that contribute to the $pp \to ppπ^0$ production at threshold. Analytic expressions are given for the effective transition operators, and the relative importance of various types of diagrams is discussed. The vertex-correction-type graphs are found to give only small corrections to lower order graphs in conformity with expectations. By contrast, we find very large contributions from the two-pion graphs which can be interpreted as a part of effective $σ$-meson exchange diagrams. The recoil correction to the pion rescattering diagram also turns out to be large. | |
| dc.description | 15 pages, 6 (eps) figures, corrected the sign of type VII graph in Table II, changed one sentence in the text accordingly | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9902048 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9902048 | |
| dc.identifier | Phys.Lett.B465:43-54,1999 | |
| dc.identifier | doi:10.1016/S0370-2693(99)01075-8 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/199011 | |
| dc.subject | Nuclear Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | A next-to-next-to-leading-order $pp \to ppπ^0$ transition operator in chiral perturbation theory | |
| dc.type | text |