Storage Ring Experiments with Cold Molecular Ions: the H3+ Puzzle

Wolf, A.; Lammich, L.; Strasser, D.; Altevogt, S.; Andrianarijaona, V.; Buhr, H.; Heber, O.; Kreckel, H.; Pedersen, H.; Schwalm, D.; Zajfman, D.

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Storage Ring Experiments with Cold Molecular Ions: the H₃⁺ Puzzle

MPG-Autoren

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Wolf, A.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Lammich, L.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Strasser, D.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Altevogt, S.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Andrianarijaona, V.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Buhr, H.
Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Kreckel, H.
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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Pedersen, H.
Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Schwalm, D.
Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Zajfman, D.
Prof. Dirk Schwalm, Emeriti, MPI for Nuclear Physics, Max Planck Society;

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Zitation

Wolf, A., Lammich, L., Strasser, D., Altevogt, S., Andrianarijaona, V., Buhr, H., et al. (2004). Storage Ring Experiments with Cold Molecular Ions: the H₃⁺ Puzzle. Physica Scripta, T110, 193-199.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-8CF9-E

Zusammenfassung

Experiments on the dissociative recombination (DR) of low-energy electrons with triatomic hydrogen ions (H3+) using merged beams in storage rings are discussed, focusing on the ro-vibrational relaxation and state diagnostics of the stored ion beam, on studies of the three-body breakup following DR, and on new observations showing a variation of the DR rates during the continuous interaction of the stored ions with a cold electron beam. Linear fragmentation patterns in the three-body DR are discussed in the light of the H3 electronic potential surfaces. Measured energy dependencies of the H3+ DR rate coefficient are compared to recent theoretical predictions [Kokoouline, V. and Greene, C. H., Phys. Rev. A 68, 012703 (2003)] and a recent storage-ring measurement at CRYRING [McCall, B. J. et al., Nature 422, 500 (2003)].