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arXiv 1009.5960nucl-th
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介子交换图中的介子-重子相互作用

Meson-baryon interaction in the meson exchange picture

M. Döring

摘要:

这是对2010年菜单会议的贡献。总结了文献[7]的最新工作。弹性π-N散射和反应π ^+ p --> K^+ Sigma^+在考虑解析性的幺正耦合道方法中同时描述。SU(3)味对称性被用来联系t-和u-通道交换,这些交换驱动不同通道中的介子-重子相互作用。角分布,偏振,和自旋旋转参数与现有的实验数据进行了比较。从解析延拓中提取振幅的极点结构。

英文摘要:

This is the contribution to the proceedings of the MENU 2010 conference. The recent work of Ref. [7] is summarized. Elastic piN scattering and the reaction pi^+ p --> K^+ Sigma^+ are described simultaneously in a unitary coupled-channels approach which respects analyticity. SU(3) flavor symmetry is used to relate the t- and u- channel exchanges that drive the meson-baryon interaction in the different channels. Angular distributions, polarizations, and spin-rotation parameters are compared with available experimental data. The pole structure of the amplitudes is extracted from the analytic continuation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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