Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three-Body Resonances in Framework of the Faddeev Configuration Space
  Approach   Algorithm, based on explicit representations for analytic continuation of the
T-matrix Faddeev components on unphysical sheets, is worked out for
calculations of resonances in the three-body quantum problem. According to the
representations, poles of the T--matrix, scattering matrix and resolvent on
unphysical sheets, interpreted as resonances, coincide with those complex
energy values where appropriate truncations of the scattering matrix have zero
as eigenvalue. Scattering amplitudes on the physical sheet, necessary to
construct scattering matrix, are calculated on the basis of the Faddeev
differential equations. Effectiveness of the algorithm developed is
demonstrated for example of searching for resonances in the system $nnp$ and in
a model three-boson system.

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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: patt-sol
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: stat
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The categories of this paper are: acc-phys
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-lat