Constraints on $\hat{I}\pounds$ Nucleus Dynamics from Dirac Phenomenology of $\hat{I}{\pounds }^{-}$ Atoms

Abstract

Strong interaction level shifts and widths in $\hat{I}{\pounds }^{-}$ atoms are analyzed by using a $\hat{I}\pounds$ 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 $\hat{I}\pounds$ hypernuclei are discussed.

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