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New CERES results
During 1999 the CERES experiment upgraded by the new TPC was taking data from semicentral Pb + Au collisions at 40 AGeV. The analysis of the di-electron spectra shows an enhancement in the low mass region of at least the same magnitude as previously observed at full SPS energy. The results are compa...
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| Lenguaje: | eng |
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2002
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| Acceso en línea: | http://cds.cern.ch/record/556840 |
| _version_ | 1780898990402830336 |
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| author | Marin, A. |
| author_facet | Marin, A. |
| author_sort | Marin, A. |
| collection | CERN |
| description | During 1999 the CERES experiment upgraded by the new TPC was taking data from semicentral Pb + Au collisions at 40 AGeV. The analysis of the di-electron spectra shows an enhancement in the low mass region of at least the same magnitude as previously observed at full SPS energy. The results are compared to model calculations with and without medium modifications of the vector mesons. The addition of the radial TPC gives more possibilities to study hadronic observables. The results obtained for the midrapidity $\Lambda$ yield and the $\bar{\Lambda}/\Lambda$ ratio are compared to the existing systematics |
| id | cern-556840 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2002 |
| record_format | invenio |
| spelling | cern-5568402023-03-14T17:00:01Zhttp://cds.cern.ch/record/556840engMarin, A.New CERES resultsParticle Physics - Experimenthep-exDuring 1999 the CERES experiment upgraded by the new TPC was taking data from semicentral Pb + Au collisions at 40 AGeV. The analysis of the di-electron spectra shows an enhancement in the low mass region of at least the same magnitude as previously observed at full SPS energy. The results are compared to model calculations with and without medium modifications of the vector mesons. The addition of the radial TPC gives more possibilities to study hadronic observables. The results obtained for the midrapidity $\Lambda$ yield and the $\bar{\Lambda}/\Lambda$ ratio are compared to the existing systematicsDuring 1999 the CERES experiment upgraded by the new TPC was taking data from semicentral Pb+Au collisions at 40 AGeV. The analysis of the di-electron spectra shows an enhancement in the low mass region of at least the same magnitude as previously observed at full SPS energy. The results are compared to model calculations with and without medium modifications of the vector mesons. The addition of the radial TPC gives more possibilities to study hadronic observables. The results obtained for the midrapidity Lambda yield and the AntiLambda/Lambda ratio are compared to the existing systematicshep-ex/0205105oai:cds.cern.ch:5568402002-05-31 |
| spellingShingle | Particle Physics - Experiment hep-ex Marin, A. New CERES results |
| title | New CERES results |
| title_full | New CERES results |
| title_fullStr | New CERES results |
| title_full_unstemmed | New CERES results |
| title_short | New CERES results |
| title_sort | new ceres results |
| topic | Particle Physics - Experiment hep-ex |
| url | http://cds.cern.ch/record/556840 |
| work_keys_str_mv | AT marina newceresresults |