在+^（12）C弹性散射中对一种唯象的N湮灭势的研究

Study on a Phenomenological +￣(12)C Annihilation Potential Model Via Elastic ■ Scattering

在Ｇｌａｕｂｅｒ多重散射理论近似下，采用泡里关联的核波函数，使用一种唯象的湮灭势，对１８０ＭｅＶ的在１２Ｃ上的弹性散射微分截面，极化角分布和自旋旋转参数进行了计算。结果表明，自旋效应可以忽略，这种势模型与实验符合得较好。

The differential cross section, the polarisation and the spin-rotationparameter in elastic scattering of 180 MeV antiproton by 12C are calculated by means ofGlauber's multiple scattering theory and Pauli-correlated wavefunction. Aphenomenological NN annihilation optential is studied within this framework. The resultindicate that spin effects are negligible, and that this NN annihilation potential model isagreement with the experimental data.