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Decay rates of excited muonic molecular ions
KTH, School of Engineering Sciences (SCI), Physics, Reactor Physics.ORCID iD: 0000-0002-6082-8913
2003 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 68, no 3Article in journal (Refereed) Published
Abstract [en]

Muonic molecular ions in excited states have been predicted to form in collisions between excited muonic atoms and hydrogen molecules. We have calculated radiative and Coulombic decay rates for ppmu(*) and ddmu(*) molecular states located below the 2s threshold, using the complex rotation method. The x-ray spectrum from the radiative decay is shown to exhibit several maxima, corresponding to the vibrational motion of the decaying molecule. The branching ratio of the radiative decay mode was calculated to be less than 15% for ppmu(*), while a radiative yield of more than 80% is predicted for the decay of ddmu(*). Our results have a significant impact on the analysis of the muon catalyzed fusion cycle as well as on the interpretation of exotic hydrogen spectroscopy.

Place, publisher, year, edition, pages
2003. Vol. 68, no 3
Keyword [en]
x-ray, coulomb deexcitation, resonance states, cross-sections, mesic hydrogen, atomic cascade, mu, absorption, collisions, kinetics
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-22864DOI: 10.1103/PhysRevA.68.032502ISI: 000185716700038OAI: oai:DiVA.org:kth-22864DiVA: diva2:341562
Note
QC 20100525 NR 20140804Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Wallenius, Janne

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