Direct observation of {ital s}-wave atomic collisions

Journal Article · Mon Oct 02 04:00:00 EDT 1995 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.75.2666· OSTI ID:118582

Gibble, K; Chang, S; Legere, R ^[1]

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1. Department of Physics, Yale University, New Haven, Connecticut 06520-8120 (United States)

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

• OSTI ID: 118582
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 14 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANGULAR DISTRIBUTION
ATOM-ATOM COLLISIONS
CESIUM
CROSS SECTIONS
S WAVES
SENSITIVITY
TEMPERATURE RANGE 0000-0013 K
VELOCITY