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Near-resonant collisional energy transfer in Sr(5s6p 1p1-rare-gas systems

✍ Scribed by Richard W. Schwenz; Stephen R. Leone

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 673 KB
Volume: 133
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)87097-5

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✦ Synopsis

The total quenching cross sections for strontium (5~6~ 'Pi) collisions with the rare gases are determined by pulsed laser, time-resolved fluorescence measurements to be 80, 40, 73, 101,140 AZ for He, Ne, Ar, Rr and Xe, respectively. For cohisions with Kr, alI of the near-resonant states, 4dSp 3F, 5s6p 3P and 4d5p 'D2, are observed to be excited. The cross sections are interpreted in terms of a curve crossing mechanism. The product branching can be explained in terms of strong coupling of the initial state with the near-resonant states, weighted by energy gap considerations.

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