Absolute polarization measurements and natural lifetime in the 7 S 1/2 state of Cs
作者： M.A. Bouchiat , J. Guena , L. Pottier
DOI: 10.1051/JPHYSLET:019840045011052300
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摘要: We report Hanle effect measurements of the relaxation in 7S 1/2 state cesium by collisions with or buffer gas (helium) atoms an electric field. The results show spin polarization to remain isotropic adopted configuration, and justify calibration procedure used our recent parity violation 6S-7S transition cesium. also obtain lifetime state: τ =48.5±0.5 ns (and depolarization cross-section σ CsHe =(1.10±0.05)×10 −15 cm 2 ). Accordingly semi-empirical value scalar polarizability becomes α=-(265.1±2.5)a 3 0 Mesures par effet Hanle, de la dans l'etat Cs induite avec des atomes ou gaz tampon (He) en presence d'un champ electrique: polarisation electronique reste isotrope configuration adoptee. Justification du procede d'etalonnage utilise lors mesures recentes parite sur Cs. Deduction duree vie et section efficace depolarisation
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