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  1. No Access

    Article

    Recovering the Two-Body Potential from a Given Three-Body Wave Function

    A simple way of deducing the two-body potential from a given two- or three-body wave function is suggested. This method makes it possible to numerically obtain an unknown potential acting between the particles A ...

    V. B. Belyaev, S. A. Rakityansky, I. M. Gopane in Few-Body Systems (2022)

  2. No Access

    Article

    Analytic Structure and Power-Series Expansion of the Jost Matrix

    For the Jost-matrix that describes the multi-channel scattering, the momentum dependencies at all the branching points on the Riemann surface are factorized analytically. The remaining single-valued matrix fun...

    S. A. Rakityansky, N. Elander in Few-Body Systems (2013)

  3. No Access

    Chapter and Conference Paper

    Microscopic Description of η-nuclear Systems

    The production of η mesons and their collisions with nuclei have been studied experimentally and theoretically with increasing interest during the last years. To a large extent this is motivated by the fundame...

    V. B. Belyaev, N. V. Shevchenko, S. A. Rakityansky… in Resonances in Few-Body Systems (2002)

  4. No Access

    Article

    Low-energy ηd-resonance

    N.V. Shevchenko, V.B. Belyaev… in The European Physical Journal A - Hadrons … (2000)

  5. No Access

    Chapter and Conference Paper

    Jost function for coupled channels

    Almost any textbook on the scattering theory has a chapter devoted to the Jost function, but none of them gives a practical recipe for its calculation. Thus one usually gets a feeling that the Jost function is...

    S. A. Rakityansky, S. A. Sofianos in Few-Body Problems in Physics ’98 (1999)

  6. No Access

    Article

    A method for calculating the Jost function for analytic potentials

    A combination of the variable-constant and complex coordinate rotation methods is used to solve the two-body Schrödinger equation. The latter is replaced by a system of linear first-order differential equation...

    S. A. Rakityansky, S. A. Sofianos, K. Amos in Il Nuovo Cimento B (1971-1996) (1996)

  7. No Access

    Chapter and Conference Paper

    On the possibility of an η-meson light nucleus bound state formation

    The resonance and bound-state poles of the amplitude describing elastic scattering of η-meson off the light nuclei 2H, 3H, 3He, and 4He are calculated in the framework of a microscopic approach based on few-body ...

    S. A. Rakityansky, S. A. Sofianos, V. B. Belyaev, W. Sandhas in Mesons and Light Nuclei ’95 (1996)

  8. No Access

    Chapter and Conference Paper

    Interaction of η-Meson with Light Nuclei

    A microscopic treatment of η-nucleus scattering is presented. When applying the underlying exact integral equations, excitations of the target are neglected, and an input ηN amplitude is chosen which reproduces t...

    V. B. Belyaev, S. A. Rakityansky, S. A. Sofianos… in Few-Body Problems in Physics ’95 (1996)

  9. No Access

    Article

    Semianalytical method for treatment of the N-body problem with complex total energy within the hyperharmonics approach

    We develop the variable phase approach to analyze all the solutions of the N-body hyperradial equations. As a first result of this analysis, we display here how the usual cutoff of the long-range potential mat...

    V. V. Pupyshev, S. A. Rakityansky in Zeitschrift für Physik A Hadrons and Nuclei (1994)

  10. No Access

    Article

    Nuclear transition in the muonic moleculetμ 3He

    We consider the possibility of a nuclear transition, through the intermediate state of the6Li(3+, 0) nucleus, for the muonic moleculetμ 3He. While the three-body Coulomb part of the problem is treated by a variat...

    V. B. Belyaev, V. I. Korobov, S. A. Rakityansky in Few-Body Systems (1994)

  11. No Access

    Chapter and Conference Paper

    Nuclear Transitions in Muonic Molecules

    A scheme, analogous to the Linear Combination of Atomic Orbitals (LCAO), is proposed to calculate rates of reactions of nucleon-group transfer between nuclei confined in muonic molecules. As an example the rat...

    V. B. Belyaev, H. Fiedeldey, S. A. Rakityansky… in Few-Body Problems in Physics ’93 (1994)