Double-strangeness production in {bar p}Xe annihilation at low energy in the DIANA chamber

Journal Article · Thu Sep 01 04:00:00 EDT 1994 · Physics of Atomic Nuclei

OSTI ID:50577

Barmin, V V; Barylov, V G; Chernukha, S F; Davidenko, G V; Demidova, E V; Demidov, V S; Dobrokhotov, V N; Dolgolenko, A G; Ergakov, V A; Golubchikov, V M ^[1]

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1. Institute of Theoretical and Experimental Physics, Moscow (Russian Federation); and others

From the analysis of about 10{sup 5} annihilations of antiprotons at rest and in flight (0.4 - 0.9 GeV/c) on Xe nuclei, new results are presented for the final state K{sup 0}{sub s}SX (S = K{sup 0}{sub s}, K{sup {minus}}, {Lambda}, {Sigma}{sup 0}, {Sigma}{sup +-}). From these results and from earlier results for the final state K{sup +}SX, inclusive and semiinclusive yields are determined, giving virtually all strange channels. The effective strangeness contents were deduced to be 5.5% at rest and 5.3% in flight. In addition to 14 events reported earlier in the final states K{sup +}K{sup +}X and K{sup +}K{sup 0}{sub s}{Lambda}X and based on an analysis of 5.4 x 10{sup 5} annihilations, three new events were found in a further analysis of 10{sup 5} annihilations. The new events, together with the revised yields and momentum and mass distributions, are presented. The results confirm earlier results on the effective mass of {Lambda}{Lambda} and a determination of the preferable cascade process.

• OSTI ID: 50577
• Report Number(s): CONF-9309360--
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 9 Vol. 57; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ANNIHILATION
ANTIPROTON REACTIONS
KAONS MINUS
KAONS NEUTRAL SHORT-LIVED
LAMBDA PARTICLES
MULTIPLE PRODUCTION
SIGMA PARTICLES
STRANGE PARTICLES
XENON