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    Antihydrogen formation in low-energy antiproton collisions with excited-state positronium atoms

    Access Status
    Fulltext not available
    Authors
    Kadyrov, Alisher
    Rawlins, C.
    Charlton, M.
    Fabrikant, I.
    Bray, Igor
    Date
    2018
    Type
    Conference Paper
    
    Metadata
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    Citation
    Kadyrov, A. and Rawlins, C. and Charlton, M. and Fabrikant, I. and Bray, I. 2018. Antihydrogen formation in low-energy antiproton collisions with excited-state positronium atoms.
    Source Title
    Hyperfine Interactions
    DOI
    10.1007/s10751-018-1519-x
    ISSN
    0304-3843
    School
    School of Electrical Engineering, Computing and Mathematical Science (EECMS)
    URI
    http://hdl.handle.net/20.500.11937/72393
    Collection
    • Curtin Research Publications
    Abstract

    © 2018, Springer Nature Switzerland AG. The convergent close-coupling method is used to obtain cross sections for antihydrogen formation in low-energy antiproton collisions with positronium (Ps) atoms in specified initial excited states with principal quantum numbers ni= 5. The threshold behaviour as a function of the Ps kinetic energy, E, is consistent with the 1/E law expected from threshold theory for all initial states. We find that the increase in the cross sections is muted above ni= 3 and that here their scaling is roughly consistent with ni2, rather than the classically expected increase as ni4.

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