$\bar \Lambda$ Production inK⁻p interactions at 32 GeV/c

U. Gensch,R. Klein,H. J. Schreiber,M. Walter,H. Graessler, D. Kuhn,D. R. O. Morrison,F. Triantis,R. Barloutaud,C. Cochet, D. Denegri,M. L. Faccini-Turluer, A. Givernaud,E. P. Kistenev,A. A. Minaenko,D. I. Patalakha,E. Kozlovsky,J. Macnaughton

European Physical Journal C（1979）

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摘要

Antilambda production is studied inK−p interactions at 32 GeV/c. Both total and differential cross sections are presented. The inclusive $\bar \Lambda$ production cross section amounts to 109±7 μb. A remarkable energy dependence is observed, σ( $\bar \Lambda$ ) increasing by a factor of four between 14.3 and 32 GeV/c. Thep⊥2 distribution exhibits an exponential fall-off with a slope of 3.3±0.2 (GeV/c)−2. Most of the $\bar \Lambda$ 's are emitted in the forward hemisphere. The invariantx distribution increases between 14.3 and 32 GeV/c. Data are presented for $\bar \Lambda$ production inK-p→Λ $\bar \Lambda$ +XK-p→ $\bar \Lambda$ Kn+X, andK-p→ $\bar \Lambda$ p+X.

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Production inK−p interactions at 32 GeV/c

$\bar \Lambda$ Production inK⁻p interactions at 32 GeV/c