Resonance states in the hydrogen-antihydrogen system from a nonadiabatic treatment
2016 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 49, no 1, 014002Article in journal (Refereed) PublishedText
The quantum-mechanical four-body problem for the hydrogen-antihydrogen system has been solved by means of the variational implementation of the coupled-arrangement channel method. Wave functions have been formed using the Gaussian expansion method (GEM) in Jacobi coordinates; they explicitly include components corresponding to the rearrangement from hydrogen and antihydrogen (H + (H) over bar into protonium and positronium (Pn + Ps). We analyze the solutions belonging to the discretized spectrum of the four-body eigenvalue problem, searching for resonance states at energies just below the H-(H) over bar dissociation energy threshold by means of the stabilization method and complex scaling.
Place, publisher, year, edition, pages
2016. Vol. 49, no 1, 014002
antimatter, resonance, hydrogen-antihydrogen, few-body system, stability method, complex scaling
IdentifiersURN: urn:nbn:se:uu:diva-274895DOI: 10.1088/0953-4075/49/1/014002ISI: 000367153800003OAI: oai:DiVA.org:uu-274895DiVA: diva2:899877
FunderWenner-Gren FoundationsSwedish Research Council