Chiral Prediction for the $πN$ Scattering Length $a^-$ to Order ${\cal O}(M_π^4)$
| dc.creator | Bernard, V. | |
| dc.creator | Kaiser, N. | |
| dc.creator | Meißner, Ulf-G. | |
| dc.date | 1995-06-01 | |
| dc.date.accessioned | 2026-07-07T11:14:32Z | |
| dc.date.available | 2026-07-07T11:14:32Z | |
| dc.description | We evaluate the S-wave pion--nucleon scattering length $a^-$ in the framework of heavy baryon chiral perturbation theory up--to--and--including terms of order $M_π^4$. We show that the order $M_π^4$ piece of the isovector amplitude at threshold, $T^-_{\rm thr}$, vanishes exactly. We predict for the isovector scattering length, $0.088 \, M_{π^+}^{-1} \le a^- \le 0.096 \, M_{π^+}^{-1}$. | |
| dc.description | 5 pp, LaTeX file, 2 figures (appended as separate compressed tar file, amin.uu) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9506204 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9506204 | |
| dc.identifier | Phys.Rev.C52:2185-2187,1995 | |
| dc.identifier | doi:10.1103/PhysRevC.52.2185 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/192102 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | Chiral Prediction for the $πN$ Scattering Length $a^-$ to Order ${\cal O}(M_π^4)$ | |
| dc.type | text |