$Δ$-mass dependence of the M-matrix in the calculation of $\mbox{N}Δ\to \mbox{NN}$ cross sections
Ying Cui, Yingxun Zhang, Zhuxia Li · arXiv (Cornell University) · 2019
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.