Meson Production in Antinucleon Annihilation on Nuclei

Meson Production in Antinucleon Annihilation on Nuclei
复制标题

原子核反核子湮灭中介子的产生

DOI：
10.1051/epjconf/20123706009
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
S. Wycech
S. Wycech
中科院分区：
--
文献类型：
--
作者：
S. Lourenco;H. Lenske;S. Wycech

文献摘要

相似文献

用全量子力学方法研究了相干反质子湮灭反应中π介子的产生。由考虑耦合通道效应的at矩阵得到了基本弹性和→nπ湮灭顶点。理论振幅被用来推导微观光学模型势和介子产生顶点。通过在π-核子共振之外增加更高的π-核子共振来考虑π核末态相互作用。核结构方面由HFB理论描述。给出了π A和介子产生截面的计算结果。
Pion production in coherent antiproton annihilation reactions on nuclei is studied in a fully quantum mechanical description. The elementary elastic and the →nπannihilation vertices are obtained from at-matrix accounting for coupled channels effects. The theoretical amplitudes are used to derive a microscopic optical model potential and the meson production vertices. Pion nucleus final state interaction are taken into account by adding higher pion-nucleon resonances beyond theΔ-resonance. Nuclear structure aspects are described by HFB-theory. Results for ,πAand meson production cross sections are presented.