标题： 反质子-氘核湮灭中的Delta激发 显示英文标题

标题： Delta excitation in antiproton-deutron annihilation

摘要： $\Delta$激发在$\overline{p}d$静止湮灭中被研究。 从统计模型得到的湮灭振幅和从共振模型得到的$\pi N$振幅被用于我们的计算中。 我们分析了$\pi^+p$和$\pi^-p$系统的不变质量，选择动量高于 400 MeV/c 的质子，并针对不同的最终反应通道进行分析。 我们的模型合理地再现了实验数据。 显示英文摘要

摘要： The $\Delta$-excitation in $\overline{p}d$ annihilation at rest was studied. The annihilation amplitude from the statistical model and the $\pi N$ amplitude from the resonance model were adopted in our calculations. We analyze the invariant mass of the $\pi^+p$ and $\pi^-p$ systems selecting the protons with momenta above 400 MeV/c and with respect to the different final reaction channels. Our model reproduces reasonably the experimental data.