Author/Authors :
DIANA Collaboration، نويسنده , , V.V. Barmin، نويسنده , , V.G. Barylov، نويسنده , , V.S Borisov، نويسنده , , G.V. Davidenko، نويسنده , , A.G. Dolgolenko، نويسنده , , C. Guaraldo، نويسنده , , V.A. Matveev، نويسنده , , G.S. Mirosidi، نويسنده , , K. Myklebost، نويسنده , , M. Olsen، نويسنده , , C. Petrascu، نويسنده , , V.A. Shebanov، نويسنده , , N.N. Shishov، نويسنده , , A.A. Sibirtsev، نويسنده , , L.I Sokolov، نويسنده , , B.S. Volkov، نويسنده , , N.K. Zombkovskaya، نويسنده ,
Abstract :
Hyperon production mechanisms in antiproton annihilation on nuclei at low energy were investigated by using 7.8×105 annihilations events in the Xe bubble chamber DIANA at View the MathML source GeV/c. The full kinematical reconstruction of the two-body secondary hyperon production reactions View the MathML source and ωp→K+Λ was performed and it was found that most of hyperons (about 70%) are produced via the reaction View the MathML source, while the remaining ones come mainly from the ωN→KYX process, in agreement with the predictions of the cascade models. The View the MathML source and the ωp→K+Λ cross sections were also estimated as further consistency check. The latter, View the MathML source mb at View the MathML source GeV/c, represents the first experimental determination.
