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Cryogenic merged-io...
Cryogenic merged-ion-beam experiments in DESIREE : Final-state-resolved mutual neutralization of Li+ and D-
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- Eklund, Gustav (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Grumer, Jon (author)
- Uppsala universitet,Teoretisk astrofysik
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- Rosén, Stefan (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Ji, MingChao (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Punnakayathil, Najeeb (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Källberg, Anders (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Simonsson, Ansgar (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Thomas, Richard D. (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Stockett, Mark H. (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Reinhed, Peter (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Löfgren, Patrik (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Björkhage, Mikael (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Blom, Mikael (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Barklem, Paul S. (author)
- Uppsala universitet,Teoretisk astrofysik
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- Cederquist, Henrik (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Zettergren, Henning (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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- Schmidt, Henning T. (author)
- Stockholms universitet,Fysikum,Stockholm Univ, Dept Phys, S-10691 Stockholm, Sweden.
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(creator_code:org_t)
- American Physical Society (APS), 2020
- 2020
- English.
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In: Physical Review A: covering atomic, molecular, and optical physics and quantum information. - : American Physical Society (APS). - 2469-9926 .- 2469-9934. ; 102:1
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https://uu.diva-port... (primary) (Raw object)
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Abstract
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- We have developed an experimental technique to study charge-and energy-flow processes in sub-eV collisions between oppositely charged, internally cold, ions of atoms, molecules, and clusters. Two ion beams are stored in separate rings of the cryogenic ion-beam storage facility DESIREE, and merged in a common straight section where a set of biased drift tubes is used to control the center-of-mass collision energy locally in fine steps. Here, we present measurements on mutual neutralization between Li+ and D- where a time-sensitive imaging-detector system is used to measure the three-dimensional distance between the neutral Li and D atoms as they reach the detector. This scheme allows for direct measurements of kinetic-energy releases, and here it reveals separate populations of the 3s state and the (3p + 3d) states in neutral Li while the D atom is left in its ground state 1s. The branching fraction of the 3s final state is measured to be 57.8 +/- 0.7% at a center-of-mass collision energy of 78 +/- 13 meV. The technique paves the way for studies of charge-, energy-, and mass-transfer reactions in single collisions involving molecular and cluster ions in well-defined quantum states.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
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- ref (subject category)
- art (subject category)
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- By the author/editor
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Eklund, Gustav
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Grumer, Jon
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Rosén, Stefan
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Ji, MingChao
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Punnakayathil, N ...
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Källberg, Anders
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Simonsson, Ansga ...
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Thomas, Richard ...
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Stockett, Mark H ...
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Reinhed, Peter
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Löfgren, Patrik
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Björkhage, Mikae ...
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Blom, Mikael
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Barklem, Paul S.
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Cederquist, Henr ...
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Zettergren, Henn ...
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Schmidt, Henning ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
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Physical Review ...
- By the university
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Stockholm University
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Uppsala University