OBSERVATION OF SPIN WAVES IN SPIN POLARIZED HYDROGEN.
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We report the results of continuing experiments on the spin transport properties of a dilute quantum gas, spin polarized hydrogen H ARROW DN . Spin wave resonances are prominent features of the pulsed Fourier transform NMR spectrum. For small tipping angles, the dependence of the spectrum on polarization and temperature are found to be in good qualitative agreement with theory. Preliminary results are presented on the large tipping angle spectrum, which exhibits a number of features not observed in the small angle spectrum.