System size dependence of strangeness production at 158 AGeV
- Strange particle production in A+A interactions at 158 AGeV is studied by the CERN experiment NA49 as a function of system size and collision geometry. Yields of charged kaons, phi and Lambda are measured and compared to those of pions in central C+C, Si+Si and centrality-selected Pb+Pb reactions. An overall increase of relative strangeness production with the size of the system is observed which does not scale with the number of participants. Arguing that rescattering of secondaries plays a minor role in small systems the observed strangeness enhancement can be related to the space-time density of the primary nucleon-nucleon collisions.
Author: | Claudia HöhneGND, NA49 Collaboration |
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URN: | urn:nbn:de:hebis:30-16489 |
ArXiv Id: | http://arxiv.org/abs/nucl-ex/0209018 |
Document Type: | Preprint |
Language: | English |
Date of Publication (online): | 2005/09/27 |
Year of first Publication: | 2002 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2005/09/27 |
Source: | Nucl.Phys. A715 (2003), http://arxiv.org/abs/nucl-ex/0209018 |
HeBIS-PPN: | 185558410 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Licence (German): | Deutsches Urheberrecht |