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arXiv 1910.07232nucl-thhep-ph
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$Δ$ -计算$\mbox{N}Δ\to \mbox{NN}$截面时M矩阵的质量依赖性

$Δ$-mass dependence of the M-matrix in the calculation of $\mbox{N}Δ\to \mbox{NN}$ cross sections

Ying Cui, Yingxun Zhang, Zhuxia Li

摘要:

在单玻色子交换模型中,研究了$Δ$ -质量相关M矩阵及其对$NΔ\to NN$截面计算的影响。计算表明,$|\textbf{p}_{NΔ}|$和$|\mathcal{M}|^2$的$m_Δ$依赖性对$σ_{NΔ\to NN}$的计算有影响,特别是在阈值能量附近.最后,我们提供了一个表,可以使用在传输模型的准确的$σ_{NΔ\to NN}$。

英文摘要:

Within the one boson exchange model, $Δ$-mass dependent M-matrix and its influence on the calculation of $NΔ\to NN$ cross sections are investigated. Our calculations show that the $m_Δ$ dependence of $|\textbf{p}_{NΔ}|$ and $|\mathcal{M}|^2$ has effects on the calculations of $σ_{NΔ\to NN}$, especially around the threshold energy. We finally provide a table of accurate $σ_{NΔ\to NN}$ which can be used in the transport models.

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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