On S-Matrix Pole vs Cusp in pp Scattering near the NΔ-Threshold
On S-Matrix Pole vs Cusp in pp Scattering near the NΔ-Threshold
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关于 NΔ 阈值附近 pp 散射中的 S 矩阵极点与尖点
DOI：
10.1143/ptp/89.2.569
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发表时间：
1993
期刊：
影响因子：
--
通讯作者：
N. Hoshizaki
中科院分区：
文献类型：
--
作者：
N. Hoshizaki
发现D波pp弹性散射截面除以πχp2有一个明显低于NΔ阈值的峰值。用M=2144 MeV，Γ=110 MeV的不稳定束束态极点解释了这一峰值。关于NΔ虚态极点或阈值尖点的解释是无效的
The cross section for the D-wave pp elastic scattering divided by πχ p 2 is found to have a peak significantly below the NΔ-threshold. The peak is explained on the basis of the unstable bound-state type pole of M = 2144 MeV, Γ = 110 MeV. Interpretations in terms of the NΔ virtual-state pole or the threshold cusp are invalid