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 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
| 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 |
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| URN: | urn:nbn:de:hebis:30-15500 |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 20.09.2005 |
| Year of first Publication: | 1981 |
| Publishing Institution: | Univ.-Bibliothek Frankfurt am Main |
| 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): |  Veröffentlichungsvertrag für Publikationen ohne Print on Demand |
