The eta-meson light nucleus resonances and quasi-bound states

1996/01/24 by S. A. Rakityansky, S. A. Sofianos, Rakityansky, S. A. +9
Physics and Astronomy · #FOS: Physical sciences #Nuclear Theory (nucl-th) #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quantum, superfluid, helium dynamics #nucl-th

paper · pdf · doi:10.48550/arxiv.nucl-th/9601035

31K,RevTex, 9 pages, 1 Tex-pseudofigure, no postscript files, submitted to Phys.Rev.C Rapid Comm

arxiv created 1996/01/24 · openalex publication_date 1996/01/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The position and movement of poles of the amplitude for elastic eta-meson scattering off the light nuclei d, t, ³He, and ⁴He are studied. It is found that, within the existing uncertainties for the elementary eta-N interaction, all these nuclei can support a quasi-bound state. The values of the eta-nucleus scattering lengths corresponding to the critical eta-N interaction which produces a quasi--bound state are given.

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