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Low-energy ηd-resonance

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Abstract:

Elastic ηd-scattering is considered within the Alt-Grassberger-Sandhas (AGS) formalism for various ηN input data. A three-body resonant state is found close to the ηd threshold. This resonance is sustained for different choices of the two-body ηN-scattering length a ηN. The position of the resonance moves towards the ηd threshold when Rea ηN is increased, and turns into a quasi-bound state at Rea ηN∼ 0.7-0.8 fm depending on the choice of Ima ηN.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, Dubna, 141980, Russia, , , , , , RU

    N.V. Shevchenko & V.B. Belyaev

  2. Physics Department, University of South Africa, P.O. Box 392, Pretoria 0003, South Africa, , , , , , ZA

    S.A. Rakityansky & S.A. Sofianos

  3. Physikalisches Institut, Universität Bonn, D-53115 Bonn, Germany, , , , , , DE

    W. Sandhas

Authors
  1. N.V. Shevchenko
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  2. V.B. Belyaev
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  3. S.A. Rakityansky
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  4. S.A. Sofianos
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  5. W. Sandhas
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Received: 12 June 2000 / Accepted: 3 August 2000

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Shevchenko, N., Belyaev, V., Rakityansky, S. et al. Low-energy ηd-resonance. Eur Phys J A 9, 143–146 (2000). https://doi.org/10.1007/s100500070064

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  • DOI: https://doi.org/10.1007/s100500070064

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