ISSN - 05874254, Acta Physica Polonica, Series B., 1998, vol. 29, p. 2987-2991
Two-pion production in proton-proton collisions near threshold at CELSIUS
Two-pion production reactions in proton-proton collisions near threshold are measured using an internal cluster-jet hydrogen target and the WASA/PROMICE detector at the CELSIUS storage ring. Four out of the five possible two-pion production reactions are measured simultaneously.