dorsal/arxiv
View SchemaTesting the Core-Halo Model on Bose-Einstein Correlation Functions
| Authors | S. Nickerson, T. Csorgo, D. Kiang |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9712059 |
| URL | https://arxiv.org/abs/nucl-th/9712059 |
| DOI | 10.1103/PhysRevC.57.3251 |
| Journal | Phys.Rev.C57:3251-3262,1998 |
Abstract
Having first performed a Monte Carlo simulation to justify the analysis technique to be used, we then analyze the Bose-Einstein correlation functions from CERN experiment NA44 in the context of the core-halo model. Although experimental resolution and error bar distribution prevents a direct observation of the halo structure, the values for the core radius and the core fraction of pions can be obtained in a straight-forward manner. These are found to be independent of the structure of the correlation function at small relative momenta of Q < 50 MeV. Hence, the omega meson decay products do not distort the Gaussian shape of the Bose-Einstein correlation function in S + Pb -> pi + pi + X reaction at CERN SPS. As we find that the "model-independent" HBT radii yield results that are quantitatively as well as qualitatively unreliable for systems with long-lived resonances, we present their corrected form that applies for correlation functions with lambda(K) < 1.
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"abstract": "Having first performed a Monte Carlo simulation to justify the analysis\ntechnique to be used, we then analyze the Bose-Einstein correlation functions\nfrom CERN experiment NA44 in the context of the core-halo model. Although\nexperimental resolution and error bar distribution prevents a direct\nobservation of the halo structure, the values for the core radius and the core\nfraction of pions can be obtained in a straight-forward manner. These are found\nto be independent of the structure of the correlation function at small\nrelative momenta of Q \u003c 50 MeV. Hence, the omega meson decay products do not\ndistort the Gaussian shape of the Bose-Einstein correlation function in S + Pb\n-\u003e pi + pi + X reaction at CERN SPS. As we find that the \"model-independent\"\nHBT radii yield results that are quantitatively as well as qualitatively\nunreliable for systems with long-lived resonances, we present their corrected\nform that applies for correlation functions with lambda(K) \u003c 1.",
"arxiv_id": "nucl-th/9712059",
"authors": [
"S. Nickerson",
"T. Csorgo",
"D. Kiang"
],
"categories": [
"nucl-th"
],
"doi": "10.1103/PhysRevC.57.3251",
"journal_ref": "Phys.Rev.C57:3251-3262,1998",
"title": "Testing the Core-Halo Model on Bose-Einstein Correlation Functions",
"url": "https://arxiv.org/abs/nucl-th/9712059"
},
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