Limit on the Strength of Intermediate-Range Forces Coupling to Isospin

Abstract

A laboratory experiment searching for intermediate-range forces coupling to $N\ensuremath{-}Z$ of nuclei has been performed. This yields the bound on the strength of any such force to be less than 3.0 \ifmmode\times\else\texttimes\fi{} ${10}^{\ensuremath{-}3}$ of gravity per baryon, for all ranges $\ensuremath{\lambda}>3$ m.