Lambda production near threshold in central nucleus-nucleus collisions

Lambda 's produced in central collisions of 40Ar+KC1 at 1.8-GeV/u incident energy were detected in a streamer chamber by their charged-particle decay. For central collisions with impact parameters b<2.4 fm the Lambda pro
Lambda 's produced in central collisions of 40Ar+KC1 at 1.8-GeV/u incident energy were detected in a streamer chamber by their charged-particle decay. For central collisions with impact parameters b<2.4 fm the Lambda production cross section is 7.6±2.2 mb. A calculation in which Lambda production occurs in the early stage of the collision qualitatively reproduces the results but underestimates the transverse momenta. An average Lambda polarization of -0.10±0.05 is observed. PACS numbers: 25.70 Bc
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Metadaten
Author:J. W. Harris, A. Sandoval, Reinhard Stock, Herbert Ströbele, R. E. Renfordt, J. V. Geaga, H. G. Pugh, S Schroeder, K. L. Wolf, A. Dacal
URN:urn:nbn:de:hebis:30-15500
Document Type:Article
Language:English
Date of Publication (online):2005/09/20
Year of first Publication:1981
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/09/20
Source:Phys. Rev. Lett. 47, 229-232 (1981), ©1981 The American Physical Society, http://prola.aps.org/abstract/PRL/v47/i4/p229_1
HeBIS PPN:186943024
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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