A study of production in 32 GeV/cK+p interactions

Autor: L.N. Gerdyukov, A.P. Vorobjev, O. G. Tchikilev, P. V. Chliapnikov, J. Hanton, E. A. De Wolf, France-USSR, A. M. Rybin, F. Verbeure, V. N. Riadovikov, M. Gijsen, V.M. Perevoztchikov, V. A. Uvarov, J. Kesteman, J. J. Dumont
Rok vydání: 1979
Předmět:
Zdroj: Nuclear Physics B. 158:253-264
ISSN: 0550-3213
DOI: 10.1016/0550-3213(79)90164-0
Popis: Production of Σ ∗− and Ξ ∗− antibaryon resonances in K+ fragmentation processes is observed by studying inclusive λ π + and λ K + 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 λ K + masses of 2240, 2380 and 2540 MeV, which correspond to previously observed Ξ ∗− states. Evidence is presented for a low-mass λ p enhancement around 2145 MeV.
Databáze: OpenAIRE