| Autor: |
M.G. Sapozhnikov, G. Piragino, Paola Salvini, K M Danielsen, L. Ferrero, S. Bossolasco, L. Fava, Alberto Rotondi, F. Balestra, T. Jacobsen, M.P. Bussa, E. Lodi Rizzini, J.M. Olsen, G.B. Pontecorvo, A. Haatuft, L. Busso, A.M. Rozhdestvensky, S.O. Sørensen, I.V. Falomkin, D. Panzieri, A. Halsteinslid, A. Zenoni, A. Venaglioni, C. Guaraldo, F.O. Breivik, V.I. Tretyak, Yu.A. Batusov, A. Maggiora, G. Bendiscioli, F. Tosello, K. Myklebost, V. Filippini |
| Rok vydání: |
1991 |
| Předmět: |
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| Zdroj: |
Nuclear Physics A. 526:415-452 |
| ISSN: |
0375-9474 |
| Popis: |
New data are reported on antiproton annihilations at rest with production of Λ and K s 0 , using a streamer chamber with 3 He, 4 He and 20 Ne as gas targets. The data include Λ, K s 0 , ΛK s 0 and K s 0 K S 0 production rates and momentum distributions, π − momentum spectra, mean numbers of charged particles generally and of negatively charged particles separately for different reaction channels. The yields are compared to simple combinatorial calculations based on the extreme assumptions of Λ production via B = 1 or via B = 0 ( K rescattering) annihilations. Λ and K s 0 momentum spectra are compared to simple model calculations where B = 0 and B = 1 annihilations with and without final-state interactions are considered. A review of existing data on Λ and K s 0 production is presented, showing the dependence on the p momentum and on the mass number of the target. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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