Threshold laws for collisional reorientation of electronic angular momentum

被引:30
作者
Krems, RV [1 ]
Dalgarno, A
机构
[1] Harvard Smithsonian Ctr Astrophys, Harvard MIT Ctr Ultracold Atoms, Cambridge, MA 02138 USA
[2] Harvard Smithsonian Ctr Astrophys, Inst Theoret Atom & Mol Phys, Cambridge, MA 02138 USA
来源
PHYSICAL REVIEW A | 2003年 / 67卷 / 05期
关键词
D O I
10.1103/PhysRevA.67.050704
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
It is shown that the velocity dependence of cross sections for projection-changing transitions in collisions of paramagnetic atoms or molecules with structureless targets near threshold has the form v(2Deltam) when Deltam is even and v(2(Deltam+1)) when Deltam is odd, where Deltam is the change in the projection quantum number and v is the relative velocity.
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页数:3
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