Isotope effect for associative detachment : H(D)- + H(D) -> H2(D2) + e-

Miller, K.A.;Bruhns, H.;Cizek, M.;Eliasek, J.;Savin, D.W.;et.al.
(2012) Physical review. A, Atomic, molecular, and optical physics — Vol. 86, n° 3, p. 32714 (2012)

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Authors
  • Miller, K.A.Columbia Astrophysics Laboratory, University of Columbia, USA
    Author
  • Bruhns, H.Columbia Astrophysics Laboratory, Columbia University, USA
    Author
  • Cizek, M.Charles University Prague, Czech Republic
    Author
  • Eliasek, J.Charles University Prague, Czech Republic
    Author
  • O'Connor, AodhUCLouvain
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  • Urbain, Xavierorcid-logoUCLouvain
    Author
  • Savin, D.W.Columbia Astrophysics Laboratory, University of Columbia, USA
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Abstract
We report experimental and theoretical results for associative detachment (AD) of D− + D → D2 + e−. We compare these data to our previously published results for H− + H → H2 + e−. The measurements show no significant isotope effect in the total cross section. This is to be contrasted with previously published experimental and theoreticalwork which has found a significant isotope effect in diatomic systems for partialADcross sections, i.e., as a function of the rotational and vibrational levels of the final molecule formed. Our work implies that though the rovibrational distribution of flux is different for AD of H− + H andD− + D, the total flux for these two systems is essentially the same when summed over all possible final channels.
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Miller, K. A., Bruhns, H., Cizek, M., Eliasek, J., Cabrera-Trujillo, R., Kreckel, H., O’Connor, A., Urbain, X., & Savin, D. W. (2012). Isotope effect for associative detachment : H(D)- + H(D) -> H2(D2) + e-. Physical review. A, Atomic, molecular, and optical physics, 86(3), 32714. https://doi.org/10.1103/PhysRevA.86.032714 (Original work published 2012)