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          Institute: MPI für Kernphysik     Collection: Physics of Cold Molecular Ions and Ultra-Cold Ensembles     Display Documents



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ID: 50993.0, MPI für Kernphysik / Physics of Cold Molecular Ions and Ultra-Cold Ensembles
Evidence for Subthermal Rotational Populations in Stored Molecular Ions through State-Dependent Dissociative Recombination
Authors: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.
Language:English
Date of Publication (YYYY-MM-DD):2003-10-03
Title of Journal:Physical Review Letters
Volume:91
Issue / Number:14
Start Page:1
End Page:4
Sequence Number of Article:143201
Copyright:American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description: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
External Publication Status:published
Document Type:Article
Affiliations:MPI für Kernphysik/Group D. Schwalm/Atomic and Molecular Physics with Stored Ions (A. Wolf)
External Affiliations:Department of Particle Physics, Weizmann Institute of Science, Rehovot, 76100, Israel
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