Y0∗ (1520) mass, width and decay fractions☆

Abstract The decay fractions of the Y 0 ∗ (1520) have been measured using the reaction K − p → Y 0 ∗ (1520) π + π − at 2.0 GeV/ c incident momentum. They are K N : Σπ: Λππ = (52 ± 4):(37 ± 4):(11 ± 2) . The best values for the mass and width are 1518.0 ± 0.7 MeV and 16 ± 2 MeV.