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Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics
The $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-...
| Autores principales: | , , , , , , , |
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| Lenguaje: | eng |
| Publicado: |
2001
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.88.202501 http://cds.cern.ch/record/526945 |
| _version_ | 1780897919155568640 |
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| author | Bleicher, M. Liu, F.M. Keranen, A. Aichelin, J. Bass, S.A. Becattini, F. Redlich, K. Werner, K. |
| author_facet | Bleicher, M. Liu, F.M. Keranen, A. Aichelin, J. Bass, S.A. Becattini, F. Redlich, K. Werner, K. |
| author_sort | Bleicher, M. |
| collection | CERN |
| description | The $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark production in small and low-mass strings. Since this behavior is not found in a statistical description of hadron production in proton proton collisions, it may serve as a key observable to probe the hadronization mechanism in such collisions. |
| id | cern-526945 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2001 |
| record_format | invenio |
| spelling | cern-5269452023-03-21T05:10:34Zdoi:10.1103/PhysRevLett.88.202501http://cds.cern.ch/record/526945engBleicher, M.Liu, F.M.Keranen, A.Aichelin, J.Bass, S.A.Becattini, F.Redlich, K.Werner, K.Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamicsParticle Physics - PhenomenologyThe $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark production in small and low-mass strings. Since this behavior is not found in a statistical description of hadron production in proton proton collisions, it may serve as a key observable to probe the hadronization mechanism in such collisions.The $\bar{\Omega}/\Omega$ ratio originating from string decays is predicted to be larger than unity in proton proton interactions at SPS energies ($E_{\rm lab}$=160 GeV). The anti-omega dominance increases with decreasing beam energy. This surprising behavior is caused by the combinatorics of quark-antiquark production in small and low-mass strings. Since this behavior is not found in a statistical description of hadron production in proton proton collisions, it may serve as a key observable to probe the hadronization mechanism in such collisions.hep-ph/0111187CERN-TH-2001-316CERN-TH-2001-316oai:cds.cern.ch:5269452001-11-15 |
| spellingShingle | Particle Physics - Phenomenology Bleicher, M. Liu, F.M. Keranen, A. Aichelin, J. Bass, S.A. Becattini, F. Redlich, K. Werner, K. Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| title | Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| title_full | Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| title_fullStr | Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| title_full_unstemmed | Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| title_short | Overpopulation of $\bar \Omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| title_sort | overpopulation of $\bar \omega$ in pp collisions: a way to distinguish statistical hadronization from string dynamics |
| topic | Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1103/PhysRevLett.88.202501 http://cds.cern.ch/record/526945 |
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