标题： 氘-质子背向弹性散射在GeV能区 显示英文标题

标题： Deuteron-proton backward elastic scattering at GeV energies

摘要： 氘-质子弹性散射在从880 MeV到2 GeV的能量以及散射角为$\theta^*\ge 140^\circ$的情况下被研究。 使用多重散射法来计算反应振幅。 考虑了四种反应机制：单核子交换、单散射以及中间态包含一个核子和一个Delta共振态的双散射。 该方法能够同时计算非极化微分截面和任意极化可观测量。 所有得到的结果均与实验数据进行了比较。 显示英文摘要

摘要： Deuteron-proton elastic scattering is considered at the energies from 880 MeV to 2 GeV at the scattering angles $\theta^*\ge 140^\circ$. The multiple-scattering method is used to calculate the reaction amplitude. Four reaction mechanisms are taken into account: one-nucleon-exchange, single-scattering, and double-scattering with a nucleon and a delta-isobar in the intermediate state. The method allows calculating both unpolarized differential cross section and any polarization observables. All the results obtained are compared to the experimental data.