Advances in the field-theoretic understanding of pion production in nucleon-nucleon collisions
| dc.creator | Lensky, V. | |
| dc.creator | Haidenbauer, J. | |
| dc.creator | Hanhart, C. | |
| dc.creator | Baru, V. | |
| dc.creator | Kudryavtsev, A. | |
| dc.creator | Meißner, U. -G. | |
| dc.date | 2006-09-04 | |
| dc.date.accessioned | 2026-07-07T10:26:27Z | |
| dc.date.available | 2026-07-07T10:26:27Z | |
| dc.description | We study the production amplitude for the reaction $NN\to NNπ$ up to next-to-leading order in chiral perturbation theory. We show that the irreducible chiral loops at this order exactly cancel those terms that arise from the off-shell parts of the $πN$ rescattering vertex. This cancellation is required for formal consistency of the whole scheme. The net effect of the inclusion of all next-to-leading order loops is to enhance the leading rescattering amplitude by a factor of 4/3 compared to phenomenological studies, bringing its contribution to the cross section for $pp\to dπ^+$ close to the experimental value. | |
| dc.description | To appear in the proceedings of the international conference MESON 2006, Cracow, Poland, 9 - 13 June 2006; 4 pages, 2 figures, uses ws-ijmpa.cls | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0609007 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0609007 | |
| dc.identifier | Int.J.Mod.Phys.A22:591-595,2007 | |
| dc.identifier | doi:10.1142/S0217751X07035902 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/176885 | |
| dc.subject | Nuclear Theory | |
| dc.title | Advances in the field-theoretic understanding of pion production in nucleon-nucleon collisions | |
| dc.type | text |