2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/37401A precise measurement of the ratio of hadron to muon production in e^+e^- collisions, denoted by R(s), is a necessary input for the interpretation of current precision electroweak measurements. We describe a method for measuring R(s) with the BaBar detector at the PEP-II B-factory using initial-state radiation events.Physics in Collision - Stanford, California, June 20-22, 2002; PSN : THAP10High Energy Physics - Experimenttext