| Автор | Andrew S Hoover |
| Автор | the PHENIX Collaboration |
| Дата выпуска | 2004-01-01 |
| dc.description | A preliminary measurement of the J/ψ production cross section in = 200 GeV pp collisions at PHENIX is presented. Using observations of the J/ψ → μ<sup>+</sup>μ<sup>−</sup> and J/ψ → e<sup>+</sup>e<sup>−</sup> decay channels, the total production cross section for J/ψ is found to be 3.8 ± 0.6 (stat.) ± 1.3 (sys.) µb. The measurement agrees well with predictions given by the colour evaporation model and non-relativistic QCD. Our one available data point for the differential p<sub>t</sub> cross section indicates that the colour octet production mechanisms dominate J/ψ production at RHIC. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Копирайт | 2004 IOP Publishing Ltd |
| Название | Charmonium production in pp collisions at PHENIX |
| Тип | paper |
| DOI | 10.1088/0954-3899/30/1/057 |
| Electronic ISSN | 1361-6471 |
| Print ISSN | 0954-3899 |
| Журнал | Journal of Physics G: Nuclear and Particle Physics |
| Том | 30 |
| Первая страница | S487 |
| Последняя страница | S492 |
| Аффилиация | Andrew S Hoover; Department of Physics, New Mexico State University, Las Cruces, NM 88003, USA |
| Аффилиация | the PHENIX Collaboration; Department of Physics, New Mexico State University, Las Cruces, NM 88003, USA |
| Выпуск | 1 |
