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Threshold anomaly in doubletn-d scattering

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Abstract

The behaviour of the doubletn-d scattering phase shift δ2(k) at energies close to the three-particle threshold is studied analytically and numerically. The scattering parameters possess an anomaly associated with the low energy of the singletN-N virtual state. The anomaly manifests itself both as a bend in the energy dependence of the functionk cot(Re δ2) in the range around 0.5 MeV and in the nonstandard behaviour of the break-up cross section near the threshold.

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Authors and Affiliations

  1. Institute for Theoretical Physics, Academy of Sciences of the Ukrainian SSR, SU-252130, Kiev, USSR

    D. V. Shapoval & I. V. Simenog

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  1. D. V. Shapoval
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  2. I. V. Simenog
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Shapoval, D.V., Simenog, I.V. Threshold anomaly in doubletn-d scattering. Few-Body Systems 8, 145–158 (1990). https://doi.org/10.1007/BF01081827

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  • DOI: https://doi.org/10.1007/BF01081827

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