APS » PROLA » Phys. Rev. Lett. » Volume 79 » Issue 3

Phys. Rev. Lett. 79, 395 - 398 (1997)

Isotope and Electric Field Effects in Dissociative Recombination of D3+

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M. Larsson1, H. Danared2, Å. Larson3, A. Le Padellec3, J. R. Peterson4, S. Rosén1, J. Semaniak3, and C. Strömholm3
1Department of Physics, Stockholm University, P.O. Box 6730, S-113 85 Stockholm, Sweden
2Manne Siegbahn Laboratory, Stockholm University, S-104 05 Stockholm, Sweden
3Department of Physics, Royal Institute of Technology (KTH), S-100 44 Stockholm, Sweden
4Molecular Physics Laboratory, SRI International, Menlo Park, California 94025

Received 10 February 1997

The cross section for dissociative recombination of vibrationally cold D3+ has been measured at the ion storage ring CRYRING. The rate constant at 300 K, α  =  2.7×10-8 cm3 s-1, is a factor of 4.3 smaller than the corresponding value for H3+ measured earlier in CRYRING. An electric field of 30 V/cm was introduced in the electron-ion interaction region. This had no measurable effect on the dissociative recombination cross section. This suggests that the cross sections measured in storage rings for H3+ and its isotopic variants can be directly compared with theoretical results once such results become available.


©1997 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v79/p395
DOI: 10.1103/PhysRevLett.79.395
PACS: 34.80.Gs, 34.80.Ht

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