Influence of Isotope Substitution Helium Atom on Partial Cross Sections in He-HF Collisions

• Published in: Communications in theoretical physics Vol. 52; no. 11; pp. 924 - 928
• Main Author: YU Chun-Ri ZHANG Jie CHEN Li JIANG Gui-Sheng HUANG Guo-Dong
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.11.2009
• Subjects: 光导开关; 同位素; 弹性散射; 截面计算; 氦原子; 碰撞系统; 高激发态
• ISSN: 0253-6102
• DOI: 10.1088/0253-6102/52/5/32

Close-coupling equation and anisotropic potential developed in our previous research are applied to HE-SHe （4He, 6He, 8He,10He） collision system, and partial cross sections （PCSs） at the incident energy of 40 me V are calculated. By analyzing the differences of these PCSs, change rules of PCSs with the increase of partial wave number, and with the change of the mass of isotope substitution helium atom are obtained. The results show that excitation PCSs converge faster than elastic PCSs for collision energy and each of systems considered here. Also excitation PCSs converge more rapidly for high-excited states. Tail effect is present only in elastic scattering and low-excited states but not in high- excited states. With the increase of the mass of isotope substitution helium atom, converging speed of elastic, total inelastic, and state-to-state excitation PCS slows down, and the maxima of these PCSs undergoes a regular change.