Dissociative Recombination of S18O+2: Evidence for Three-Body Breakup

Details Dissociative Recombination of S18O+2: Evidence for Three-Body Breakup Dissociative Recombination of S18O+2: Evidence for Three-Body Breakup

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apj...610.1228g&link_type=abstract

The Astrophysical Journal, Volume 610, Issue 2, pp. 1228-1233.

Astronomy and Astrophysics

Astronomy

9

Astrochemistry, Methods: Laboratory, Molecular Data

Scientific paper

Branching ratios and absolute cross sections have been measured for the dissociative recombination of S18O+2 using the CRYRING ion storage ring. The branching ratio of the S18O+2+e--->S18O+18O channel amounts to 61%, while the three-body breakup S18O+2+e--->S+218O accounts for the remaining 39% of the total reaction. The cross section of the reaction could be fitted by the expression σ=(1.2+/-0.4)×10-15E-0.96+/-0.02 cm2, which leads to a thermal reaction rate of k(T)=(4.6+/-0.2)×10-7(T/300K)-0.52+/-0.02 cm3 mol-1 s-1.

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