Pion-proton correlations and asymmetry measurement in Au + Au collisions at √s NN = 200 GeV data
| Autor: | Marcin Zawisza |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Radiation Proton media_common.quotation_subject Nuclear Theory Relative velocity Spherical harmonics Asymmetry Atomic and Molecular Physics and Optics Correlation function (statistical mechanics) Pion Particle High Energy Physics::Experiment Radiology Nuclear Medicine and imaging Nuclear Experiment media_common |
| Zdroj: | Physics of Particles and Nuclei Letters. 8:924-927 |
| ISSN: | 1531-8567 1547-4771 |
| DOI: | 10.1134/s1547477111090378 |
| Popis: | Correlations between non-identical particles at small relative velocity probe asymmetries in the average space-time emission points at freeze-out. The origin of such asymmetries may be from long-lived resonances, bulk collective effects, or differences in the freeze-out scenario for the different particle species. STAR has extracted pion-proton correlation functions from a dataset of Au+Au collisions at √sNN = 200 GeV. We present correlation functions in the spherical harmonic decomposition representation, for different centralities and for different combinations of pions and (anti-)protons. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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