dorsal/arxiv
View SchemaFormation of correlations at short time scales and consequences on interferometry methods
| Authors | K. Morawetz, H. S. Köhler |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9807046 |
| URL | https://arxiv.org/abs/nucl-th/9807046 |
Abstract
The formation of correlations due to collisions in an interacting nucleonic system is investigated shortly after a disturbance. Results from one-time kinetic equations are compared with the Kadanoff and Baym two-time equation with collisions included in second order Born approximation. A reasonable agreement is found for a proposed approximation of the memory effects by a finite duration of collisions. The formation of correlations and the build up time is calculated analytically for the high temperature and the low temperature limit. This translates into a time dependent increase of the effective temperature on time scales which interfere with standard fire ball scenarios of heavy ion collisions. The consequences of the formation of correlations on the two- particle interferometry are investigated and it is found that standard extracted lifetimes should be corrected downwards.
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"date_created": "2026-03-02T18:00:22.364000Z",
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"abstract": "The formation of correlations due to collisions in an interacting nucleonic\nsystem is investigated shortly after a disturbance. Results from one-time\nkinetic equations are compared with the Kadanoff and Baym two-time equation\nwith collisions included in second order Born approximation. A reasonable\nagreement is found for a proposed approximation of the memory effects by a\nfinite duration of collisions. The formation of correlations and the build up\ntime is calculated analytically for the high temperature and the low\ntemperature limit. This translates into a time dependent increase of the\neffective temperature on time scales which interfere with standard fire ball\nscenarios of heavy ion collisions. The consequences of the formation of\ncorrelations on the two- particle interferometry are investigated and it is\nfound that standard extracted lifetimes should be corrected downwards.",
"arxiv_id": "nucl-th/9807046",
"authors": [
"K. Morawetz",
"H. S. K\u00f6hler"
],
"categories": [
"nucl-th"
],
"title": "Formation of correlations at short time scales and consequences on interferometry methods",
"url": "https://arxiv.org/abs/nucl-th/9807046"
},
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