| Автор | Carsten Greiner |
| Автор | Stefan Leupold |
| Дата выпуска | 2001-09-01 |
| dc.description | Recently, it has been shown that the observed antiproton yield in heavy-ion collisions at CERN-SpS energies can be understood by multi-pionic interactions such as πππππ↔pp̅, which enforce local chemical equilibrium of the antiprotons with the nucleons and pions. Here we show that antihyperons are driven towards local chemical equilibrium with pions, nucleons and kaons on a timescale of 1-3 fm c<sup>-1</sup> when applying a similar argument for the antihyperons by considering the inverse channel of annihilation reactions such as Y̅ + p↔n<sub>1</sub>π + n<sub>2</sub>K. These multi-mesonic reactions easily explain the antihyperon yields at CERN-SpS energies as advertised in pure thermal, hadronic models without the need of a quark-gluon plasma phase. In addition, the argument also applies for AGS energies. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Antihyperon production in relativistic heavy-ion collisions |
| Тип | lett |
| DOI | 10.1088/0954-3899/27/9/102 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 27 |
| Первая страница | L95 |
| Последняя страница | L101 |
| Аффилиация | Carsten Greiner; Institut für Theoretische Physik, Universität Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany |
| Аффилиация | Stefan Leupold; Institut für Theoretische Physik, Universität Giessen, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany |
| Выпуск | 9 |
