C. Amsler et al., PARTIAL-WAVE ANALYSIS OF THE PI-PI-ETA IN (P)OVER-BAR-P ANNIHILATION AT REST, Nuovo cimento della Società Italiana di Fisica. A. Nuclei, particles and fields, 107(11), 1994, pp. 2321-2327
A new isovector scalar pi eta resonance with a mass of 1450 MeV is obs
erved in a high-statistics study of ($) over bar pp annihilation at re
st into pi(0) pi(0) eta.