中能区反质子与原子核散射的极化度

The Polarization in Antiproton—Nucleus Scattering at Intermediate Energies

在已获得的中能区反质子与核的中心势的光学势基础上,把光学势扩大到包含自旋轨道耦合势.在反质子能量为179.8,294.8和508MeV各情况下,分别计算和分析与^(12)C靶核的微分截面(dσ)/(dΩ),极化度P(θ)和自旋转动函数Q(θ).在与极化度的实验比较中,得到中能区普遍形式的反质子光学势.

The central optical potential of the antiproton—nucleus has already been studied at intermediate energies. Now we extend it to include the spin—orbit interaction terms. The elastic scattering differential cross section dσ/(dΩ), polarization P(θ) and spin rotation function Q(θ) are calculated separately for the target nucleus^(12)C at incident energies 179.80 294.8 and 508 MeV. By comparison with the experimental polarization data, the antiproton optical potential in its general form is obtained at intermediate energies.