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Resonance states in the hydrogen-antihydrogen system from a nonadiabatic treatment
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- Stegeby, Henrik (author)
- Uppsala universitet,Teoretisk kemi
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- Piszczatowski, Konrad (author)
- Uppsala universitet,Teoretisk kemi
- (creator_code:org_t)
- 2015-11-26
- 2016
- English.
- In: Journal of Physics B. - : IOP Publishing. - 0953-4075 .- 1361-6455. ; 49:1
- Journal article (peer-reviewed)
Abstract
Subject headings
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- 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.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- antimatter
- resonance
- hydrogen-antihydrogen
- few-body system
- stability method
- complex scaling
Publication and Content Type
- ref (subject category)
- art (subject category)
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