| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000408169 |
| ISSN: | 0103-9733 |
| Authors: | Morita, Kenji1 Muroya, Shin2 Nakamura, Hiroki1 |
| Institutions: | 1Waseda University, Department of Physics, Tokio. Japón 2Matsumoto University, Matsumoto. Japón |
| Year: | 2007 |
| Season: | Jun |
| Volumen: | 37 |
| Number: | 2C |
| Pages: | 705-707 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, analítico |
| English 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, ltrue from two-pion correlation functions measured in experiments, we make a correction for long-lived resonance decay contributions. Using this ltrue and the weight factor which are obtained from parameter fitted to two- and three-pion correlation function, we calculate a chaotic fraction e and the number of coherent sources a for different colliding energies. The result gives constraints on the source and shows an increase of the minimum number of a with multiplicity, although multiplicity independent chaoticity is not excluded |
| Disciplines: | Física y astronomía |
| Keyword: | Física, Física de partículas y campos cuánticos, Mecánica cuántica, Fluctuaciones cuánticas, Correlaciones, Iones pesados, Colisiones, Piones |
| Keyword: | Physics and astronomy, Particle physics and quantum fields, Physics, Quantum mechanics, Quantum fluctuations, Correlations, Heavy ions, Collisions, Pions |
| Full text: | Texto completo (Ver PDF) |
