奇异原子能级与光学模型势

Energies of the Strange Exotic Atom and Optical Model Potential

为进一步研究K-介子原子和Σ-超子原子2类奇异原子中的相互作用和能量问题,基于二阶线性偏微分方程的差分数值解法求解了Klein-Gordon方程和Dirac方程,得到K-介子原子和Σ-超子原子的相应能级.其结果与实验数据的最大误差分别仅为-0.051%和0.035%,这表明光学模型势应用于奇异原子能级计算能够提高理论结果的准确性.此结果连同π-原子-、P原子的情况支持了Batty光学模型势在奇异原子中应用的正确性,进而表明核子间的强相互作用力为排斥力.

The interaction and energies between two types strange exotic atoms, meson atom and hyperon atom are further studied. The energy levels of meson atom and hyperon atom are obtained by solving of the Klein-Gordon equation and Dirac equation numerically. The results coincide with the experimental date well. The maximum fractional errors in the energy levels of meson atom and hyperon atom is only --0. 051% and 0. 035 %. The application of optical model to calculating energy levels of the strange exotic atoms can improve theoretical results. It is verified that the strong interaction between the meson or hyperon and nucleons is described by the optical model potential in the strange exotic atoms, and it is repelling between the nucleons.