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- W1970866501 abstract "Relaxation experiments performed on optically polarized Rb atoms in a rare gas have been previously reported; their detailed interpretation is given below. It is shown that the relaxation governed by the spin-orbit interaction is strongly affected by the formation of chemically unstable Rb-Kr molecules bound by van der Waals forces. Two processes of molecule formation are analyzed: binary resonant collisions leading to metastable states and three-body collisions producing actual bound states. A relaxation model valid for any disorientation probability per single Rb-Kr interaction is developed. Aside from clear evidence for the existence of alkali-rare-gas molecules, the success of the theoretical interpretation of the relaxation experiments yields the equilibrium constant $mathcal{K}=1.7ifmmodetimeselsetexttimesfi{}{10}^{ensuremath{-}22}$ ${mathrm{cm}}^{3}$/molecule for the reaction Rb+Kr ensuremath{rightleftharpoons} Rb-Kr at 300ifmmode^circelsetextdegreefi{}K, the average lifetime of a Rb-Kr molecule in the gas phase, $ensuremath{tau}=0.65ifmmodetimeselsetexttimesfi{}{10}^{ensuremath{-}7}$ sec, at a krypton pressure of one Torr, and the average spin-orbit coupling constant in a Rb-Kr molecule, $overline{ensuremath{gamma}}{h}^{ensuremath{-}1}=0.63$ MHz. It is also shown that the spin-orbit potential is predominantly short-range." @default.
- W1970866501 created "2016-06-24" @default.
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- W1970866501 date "1969-05-05" @default.
- W1970866501 modified "2023-09-23" @default.
- W1970866501 title "Evidence for Rb-Rare-Gas Molecules from the Relaxation of Polarized Rb Atoms in a Rare Gas. Theory" @default.
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- W1970866501 doi "https://doi.org/10.1103/physrev.181.144" @default.
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