DIRECT OBSERVATION OF S-WAVE ATOMIC-COLLISIONS

被引：223

作者：

GIBBLE, K

CHANG, S

LEGERE, R

机构：

[1] Department of Physics, Yale University, New Haven

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.75.2666

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We observe the angular distribution of s-wave scattering of Cs atoms in an atomic fountain by selecting and probing atomic velocities. At an average temperature of T = 0.89 mu K the scattering is predominantly s-wave and we have a sensitivity to p-wave cross sections as small as 0.1% of the s-wave. The cross section is 4 X 10(-11) cm(2) for atoms in the F = 3, m(F) = 0 state colliding with atoms distributed among the F = 4, m(F) states. We also demonstrate a multiply loaded magneto-optic trap and a temperature of 1.53(7) mu K.

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页码：2666 / 2669

页数：4

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