Constraints on $Σ$ Nucleus Dynamics from Dirac Phenomenology of $Σ^-$ Atoms

Details Constraints on $Σ$ Nucleus Dynamics from Dirac Phenomenology of $Σ^-$ Atoms Constraints on $Σ$ Nucleus Dynamics from Dirac Phenomenology of $Σ^-$ Atoms

1995-05-06

arxiv.org/abs/nucl-th/9505003v1

Nucl.Phys. A594 (1995) 311-324

Physics

Nuclear Physics

Nuclear Theory

18 pages, RevTex, 4 uuencoded figures, subm. Nucl.Phys.A

Scientific paper

10.1016/0375-9474(95)00358-8

Strong interaction level shifts and widths in $\Sigma^-$ atoms are analyzed by using a $\Sigma$ nucleus optical potential constructed within the relativistic mean field approach. The analysis leads to potentials with a repulsive real part in the nuclear interior. The data are sufficient to establish the size of the isovector meson--hyperon coupling. Implications to $\Sigma$ hypernuclei are discussed.

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