dorsal/arxiv
View SchemaSource chaoticity in relativistic heavy ion collisions at SPS and RHIC
| Authors | Kenji Morita, Shin Muroya, Hiroki Nakamura |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/0610125 |
| URL | https://arxiv.org/abs/nucl-th/0610125 |
| Journal | Braz.J.Phys.37:705-707,2007 |
Abstract
We investigate degree of coherence of pion sources produced in relativistic heavy ion collisions using multi-particle interferometry. In order to obtain ``true'' chaoticity, lambda^true from two-pion correlation functions measured in experiments, we make a correction for long-lived resonance decay contributions. Using this lambda^true and the weight factor which are obtained from parameter fitted to two- and three-pion correlation function, we calculate a chaotic fraction epsilon and the number of coherent sources alpha for different colliding energies. The result gives constraints on the source and shows an increase of the minimum number of alpha with multiplicity, although multiplicity independent chaoticity is not excluded.
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"abstract": "We investigate degree of coherence of pion sources produced in relativistic\nheavy ion collisions using multi-particle interferometry. In order to obtain\n``true\u0027\u0027 chaoticity, lambda^true from two-pion correlation functions measured\nin experiments, we make a correction for long-lived resonance decay\ncontributions. Using this lambda^true and the weight factor which are obtained\nfrom parameter fitted to two- and three-pion correlation function, we calculate\na chaotic fraction epsilon and the number of coherent sources alpha for\ndifferent colliding energies. The result gives constraints on the source and\nshows an increase of the minimum number of alpha with multiplicity, although\nmultiplicity independent chaoticity is not excluded.",
"arxiv_id": "nucl-th/0610125",
"authors": [
"Kenji Morita",
"Shin Muroya",
"Hiroki Nakamura"
],
"categories": [
"nucl-th",
"hep-ph",
"nucl-ex"
],
"journal_ref": "Braz.J.Phys.37:705-707,2007",
"title": "Source chaoticity in relativistic heavy ion collisions at SPS and RHIC",
"url": "https://arxiv.org/abs/nucl-th/0610125"
},
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