Collisional energy transfer in Na(4[ital p]--3[ital d])--He,H[sub 2] collisions

We have investigated the direct collisional energy transfer process Na*(4[ital p])+M[r arrow]Na*(3[ital d])+M, where M=He,H[sub 2] under gas cell conditions. We have measured the temporal profiles of the Na(3[ital d]--3[ital p]) sensitized fluorescence as a function of quenching gas pressure and fit...

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