Evidence for Subthermal Rotational Populations in Stored Molecular Ions through 
State-Dependent Dissociative Recombination

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

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Evidence for Subthermal Rotational Populations in Stored Molecular Ions through State-Dependent Dissociative Recombination

MPG-Autoren

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

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Lange, M.
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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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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Witte, P.
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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Wolf, A.
Division Prof. Dr. Klaus Blaum, 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

Lammich, L., Strasser, D., Kreckel, H., Lange, M., Pedersen, H., Altevogt, S., et al. (2003). Evidence for Subthermal Rotational Populations in Stored Molecular Ions through State-Dependent Dissociative Recombination. Physical Review Letters, 91(14): 143201, pp. 1-4.

Zitierlink: https://hdl.handle.net/11858/00-001M-0000-0011-8DF6-C

Zusammenfassung

We demonstrate that the dissociative recombination of D/sub 2/H/sup +/ with low-energy electrons depends on the rotational energy of the molecular ion such that highly excited ions have a larger rate coefficient than colder ones. Observations on an ion beam continuously interacting with electrons at low relative velocity indicate that excited rotational levels are preferentially depleted which, in competition with radiative heating due to blackbody radiation, provides an opportunity for controlling the rotational temperature of stored molecules