arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0911.3288nucl-th
收藏

核物质中$Σ$超子的光学模型势

The optical model potential of the $Σ$ hyperon in nuclear matter

J. Dabrowski, J. Rozynek

摘要:

本文试图确定核物质中$Σ$超子的光学模型势$U_Σ= V_Σ-iW_Σ$。我们分析了$U_Σ$的以下信息来源:$ΣN$散射,$Σ^-$原子,以及核靶上$(π,K^+)$和$(K^-.π)$反应中$Σ$超子的终态相互作用。我们的结论是,$V_Σ$是排斥内的核和有一个浅的牵引口袋在核表面。$V_Σ$的这些特征与超子-核子相互作用的Nijmegen模型F是一致的。

英文摘要:

We present our attempts to determine the optical model potential $U_Σ= V_Σ-iW_Σ$ of the $Σ$ hyperon in nuclear matter. We analyze the following sources of information on $U_Σ$: $ΣN$ scattering, $Σ^-$ atoms, and final state interaction of $Σ$ hyperons in the $(π,K^+)$ and $(K^-.π)$ reactions on nuclear targets. We conclude that $V_Σ$ is repulsive inside the nucleus and has a shallow a tractive pocket at the nuclear surface. These features of $V_Σ$ are consistent with the Nijmegen model F of the hyperon-nucleon interaction.

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。

↑