University of Massachusetts Amherst From the SelectedWorks of John Donoghue 1980 Analysis of ÄS = 1 nonleptonic weak decays and the ÄI = 1/2 rule John Donoghue, University of Massachusetts - Amherst E. Golowich, University of Massachusetts - Amherst William Ponce, University of Massachusetts - Amherst Barry Holstein, National Science Foundation Available at: https://works.bepress.com/john_donoghue/ 19/