par Chliapnikov, P.;Gerdyukov, L.N.;Perevoztchikov, V.M.;Riadovikov, V.N.;Rybin, A.M.;Tchikilev, O.G.;Uvarov, Vladimir;Vorobjev, A.P.;de Wolf, Els;Dumont, Jean-Jacques ;Gijsen, M.;Verbeure, F;Hanton, J.;Kesteman, José
Référence Nuclear physics. B, 158, 2-3, page (253-264)
Publication Publié, 1979
Référence Nuclear physics. B, 158, 2-3, page (253-264)
Publication Publié, 1979
Article révisé par les pairs
Résumé : | Production of Σ*- and Ξ*- antibaryon resonances in K+ fragmentation processes is observed by studying inclusive λπ+ and λK+ invariant mass distributions in 32 GeV/c K+p interactions. A possible Ξ*- state is reported with a mass of 2137±4 MeV and width ≲20 MeV. Signals are observed at λK+ masses of 2240, 2380 and 2540 MeV, which correspond to previously observed Ξ*- states. Evidence is presented for a low-mass λp enhancement around 2145 MeV. © 1979. |