贵州师范大学学报：自然科学版
貴州師範大學學報：自然科學版
귀주사범대학학보：자연과학판
Journal of Guizhou Normal University(Natural Sciences)
2011年
3期
127-131
,共5页
He—BH复合物%密耦近似%散射截面%分波截面%电荷分布
He—BH複閤物%密耦近似%散射截麵%分波截麵%電荷分佈
He—BH복합물%밀우근사%산사절면%분파절면%전하분포
He-BH complex%close coupling approximation%scattering cross section%partial cross section%charge distribution
用密耦近似方法计算了入射能量分别为25meV、75meV、125meV和150meV时，He原子与基态BH分子碰撞的分波截面。计算结果表明：在总分波截面尾部效应极大值对应的碰撞参数附近，径向偶极发生转向；总分波截面最大峰的位置几乎对应于He原子具有最大负电荷的位置。
用密耦近似方法計算瞭入射能量分彆為25meV、75meV、125meV和150meV時，He原子與基態BH分子踫撞的分波截麵。計算結果錶明：在總分波截麵尾部效應極大值對應的踫撞參數附近，徑嚮偶極髮生轉嚮；總分波截麵最大峰的位置幾乎對應于He原子具有最大負電荷的位置。
용밀우근사방법계산료입사능량분별위25meV、75meV、125meV화150meV시，He원자여기태BH분자팽당적분파절면。계산결과표명：재총분파절면미부효응겁대치대응적팽당삼수부근，경향우겁발생전향；총분파절면최대봉적위치궤호대응우He원자구유최대부전하적위치。
The partial cross section for collision between He atom and ground state of BH molecule has been calculated by close-coupling approximation method. This calculation is performed at the incident energies of 25meV,75meV, 125meV and 150meV,respectively. The result suggests that the radial di- pole steers in the vicinity of the impact parameter corresponding to the maximum of the total partial cross section （TPCS） tail effect, and the maximum peak position of the TPCS nearly corresponds to the position where the He atom has the largest negative charge.
