Experimental determination of the rate constants for spin exchange between optically pumped K, Rb, and Cs atoms and Xe129 nuclei in alkali-metal noble-gas van der Waals molecules

X. Zeng, Z. Wu, T. Call, E. Miron, D. Schreiber, W. Happer

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Abstract

By analyzing the measured spin-relaxation transients of Xe129 nuclear spins and alkali-metal-atomic spins in mixtures of alkali-metal-atom vapors, Xe gas, and larger amounts of N2 gas, we have determined the three-body formation rates and the spin-transfer probabilities for alkali- metal noble-gas van der Waals molecules. Three parameters, in addition to the spin quantum numbers of the alkali-metal and noble-gas nuclei, are needed to predict the spin-transfer rates. These parameters, which we have determined from experimental measurements, are x=N/±, the ratio of the spin-rotation interaction N to the spin-exchange interaction ±; p0, the third-body pressure for which the molecular breakup rate -1 is equal to the spin-rotation frequency N/h; and Z, the three-body rate constant for forming van der Waals molecules.

Original languageEnglish (US)
Pages (from-to)260-278
Number of pages19
JournalPhysical Review A
Volume31
Issue number1
DOIs
StatePublished - 1985
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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