| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000403234 |
| ISSN: | 0103-9733 |
| Authors: | Lacey, Roy A1 |
| Institutions: | 1Stony Brook University, Department of Chemistry, Stony Brook, Nueva York. Estados Unidos de América |
| Year: | 2007 |
| Season: | Sep |
| Volumen: | 37 |
| Number: | 3A |
| Pages: | 893-902 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English abstract | Recent femtoscopic measurements involving the use of an imaging technique and a newly developed moment analysis are presented and discussed. We show that this new paradigm allows robust investigation of reaction dynamics for which the sound speed cs = 0 during an extended hadronization period. Source functions extracted for charged pions produced in Au+Au and Pb+Pb collisions show non-Gaussian tails for a broad selection of collision energies. The ratio of the RMS radii of these source functions in the out and side directions are found to be greater than 1, suggesting a finite emission time for pions |
| Disciplines: | Física y astronomía |
| Keyword: | Física de materia condensada, Física nuclear, Interferometría |
| Keyword: | Physics and astronomy, Condensed matter physics, Nuclear physics, Interferometry |
| Full text: | Texto completo (Ver PDF) |
