System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron
Results on Lambda, Lambda[over-bar], and Xi- production in centrality selected Pb+Pb reactions at 40A and 158A GeV and in near-central C+C and Si+Si reactions at 158A GeV are presented. Transverse mass spectra, rapidity spectra, and multiplicities in dependence of the system size are discussed. Com...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/54956 https://orcid.org/0000-0001-8983-2169 |
| _version_ | 1826197851126890496 |
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| author | Veres, Gabor Roland, Christof E Roland, Gunther M |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Veres, Gabor Roland, Christof E Roland, Gunther M |
| author_sort | Veres, Gabor |
| collection | MIT |
| description | Results on Lambda, Lambda[over-bar], and Xi- production in centrality selected Pb+Pb reactions at 40A and 158A GeV and in near-central C+C and Si+Si reactions at 158A GeV are presented. Transverse mass spectra, rapidity spectra, and multiplicities in dependence of the system size are discussed. Comparisons to transport models (ultrarelativistic quantum molecular dynamics and hadron string dynamics) and to the core-corona approach are performed. Although Lambda and Lambda[over-bar] production can be described by transport models reasonably well, these models do not agree with the Xi- measurements. However, the core-corona picture fits very well the system-size dependence of Lambda and Xi-, whereas it agrees less well with the Lambda[over-bar] data. |
| first_indexed | 2024-09-23T10:54:28Z |
| format | Article |
| id | mit-1721.1/54956 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T10:54:28Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/549562023-02-26T08:11:23Z System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron System-size dependence of Λ and Ξ production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron Veres, Gabor Roland, Christof E Roland, Gunther M Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Roland, Gunther M. Roland, Christof E. Roland, Gunther M. Veres, Gabor Results on Lambda, Lambda[over-bar], and Xi- production in centrality selected Pb+Pb reactions at 40A and 158A GeV and in near-central C+C and Si+Si reactions at 158A GeV are presented. Transverse mass spectra, rapidity spectra, and multiplicities in dependence of the system size are discussed. Comparisons to transport models (ultrarelativistic quantum molecular dynamics and hadron string dynamics) and to the core-corona approach are performed. Although Lambda and Lambda[over-bar] production can be described by transport models reasonably well, these models do not agree with the Xi- measurements. However, the core-corona picture fits very well the system-size dependence of Lambda and Xi-, whereas it agrees less well with the Lambda[over-bar] data. Bulgarian National Science Fund (Ph-09/05) Korea Research Foundation (KRF-2007-313-C00175) Polish Ministry of Science and Higher Education (1 P03B 006 30, 1 P03B 127 30, 0297/B/H03/2007/33, N N202 078735) Polish- German Foundation Országos Tudományos Kutatási Alapprogramok (F034707) Hungarian National Science Foundation Hungarian Scientific Research Foundation (T032648, T032293, T043514) Virtual Institute VI-146 of Helmholtz Gemeinschaft, Germany Bundesministerium für Bildung und Forschung, Germany (06F137) United States Department of Energy (Grant DE-FG03-97ER41020/A000) 2010-05-25T20:18:45Z 2010-05-25T20:18:45Z 2009-09 2009-06 Article http://purl.org/eprint/type/JournalArticle 0556-2813 http://hdl.handle.net/1721.1/54956 NA49 Collaboration et al. “System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron.” Physical Review C 80.3 (2009): 034906. © 2009 American Physical Society. https://orcid.org/0000-0001-8983-2169 en_US http://dx.doi.org/10.1103/PhysRevC.80.034906 Physical Review C Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Veres, Gabor Roland, Christof E Roland, Gunther M System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron |
| title | System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron |
| title_full | System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron |
| title_fullStr | System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron |
| title_full_unstemmed | System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron |
| title_short | System-size dependence of Lambda and Xi production in nucleus-nucleus collisions at 40A and 158A GeV measured at the CERN Super Proton Synchrotron |
| title_sort | system size dependence of lambda and xi production in nucleus nucleus collisions at 40a and 158a gev measured at the cern super proton synchrotron |
| url | http://hdl.handle.net/1721.1/54956 https://orcid.org/0000-0001-8983-2169 |
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