Half-Life ofLi11, ofNa27, and of the New IsotopesNa28,Na29,Na30, andNa31Produced in High-Energy Nuclear Reactions

Abstract
Our on-line mass-spectrometer technique has enabled us to measure the half-lives of very neutron-rich Li and Na isotopes produced in the reaction of 24-GeV protons on heavy nuclei. A β energy spectrum of Na27 has also been obtained.