Molecular-dynamics simulations of cold antihydrogen formation in strongly magnetized plasmas

Employing a high-order symplectic integrator and an adaptive time-step algorithm, we perform molecular-dynamics simulations of antihydrogen formation, in a cold plasma confined by a strong magnetic field, over time scales of microseconds. Sufficient positron-antiproton recombination events occur to...

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Bibliographic Details
Published inPhysical review letters Vol. 95; no. 16; p. 163402
Main Authors Hu, S X, Vrinceanu, D, Mazevet, S, Collins, L A
Format Journal Article
LanguageEnglish
Published United States 14.10.2005
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Summary:Employing a high-order symplectic integrator and an adaptive time-step algorithm, we perform molecular-dynamics simulations of antihydrogen formation, in a cold plasma confined by a strong magnetic field, over time scales of microseconds. Sufficient positron-antiproton recombination events occur to allow a statistical analysis for various properties of the formed antihydrogen atoms. Giant-dipole states are formed in the initial stage of recombination. In addition to neutral atoms, we also observe antihydrogen positive ions (H(+)), in which two positrons simultaneously bind to an antiproton.
ISSN:0031-9007
DOI:10.1103/PhysRevLett.95.163402