Chemical destruction of rotationally "hot" HeH + : Quantum cross sections and mechanisms of its reaction with H
作者： S. Bovino , F.A. Gianturco , M. Tacconi
DOI: 10.1016/J.CPLETT.2012.10.027
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摘要: Abstract The present work focuses on the reaction of a molecule astrophysical interest, HeH + , with most abundant species in Universe: H atom, and situations where partner ion is internally excited into some its lower rotational states. This strongly exothermic reaction: → 2 He leads to destruction we study this outcome by using an accurate reactive potential energy surface (RPES) analysing behaviour helicity within Negative Imaginary Potential (NIP) approach. Different, possible molecular mechanisms connected role rotationally “hot” partners are thus suggested from cross sections for different values effects overall efficiency also discussed, both temperatures range Early Universe processes colder conditions traps (at mK temperatures).
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