 |
 |
 |
|
|
|
| HAL : in2p3-00724003, version 1 |
| arXiv : 1208.2736 |
| Fiche détaillée |  Récupérer au format |
|
|
|
|
| J/$\psi$ production at high transverse momenta in p+p and Au+Au collisions at sqrt(s_{NN}) = 200 GeV |
|
|
| L. AdamczykW. Borowski1S. Kabana1 |
|
|
| STAR Collaboration(s) |
|
|
| (2012) |
|
|
|
| We report $J/\psi$ spectra for transverse momenta $p_T$> 5 GeV/$c$ at mid-rapidity in p+p and Au+Au collisions at sqrt(s_{NN}) = 200 GeV.The inclusive $J/\psi$ spectrum and the extracted $B$-hadron feed-down are compared to models incorporating different production mechanisms. We observe significant suppression of the $J/\psi$ yields for $p_T$> 5 GeV/$c$ in 0-30% Au+Au collisions relative to the p+p yield scaled by the number of binary nucleon-nucleon collisions in Au+Au collisions. In 30-60% collisions, no such suppression is observed.The level of suppression is consistently less than that of high-$p_T$ $\pi^{\pm}$ and low-$p_T$ $J/\psi$. |
|
|
|
|
|
|
|
|
|
|
|
| 1 : | SUBATECH - Laboratoire SUBATECH Nantes |
|
|
|
|
|
|
|
|
|
| Thème(s) | : | Physique/Physique des Hautes Energies - Expérience Physique/Physique Nucléaire Expérimentale |
|
|
| Lien vers le texte intégral : |
|
| http://fr.arXiv.org/abs/1208.2736 |
| in2p3-00724003, version 1 | |
| http://hal.in2p3.fr/in2p3-00724003 | |
| oai:hal.in2p3.fr:in2p3-00724003 | |
| Contributeur : Dominique Girod | |
| Soumis le : Jeudi 16 Août 2012, 13:13:38 | |
| Dernière modification le : Vendredi 17 Août 2012, 10:43:49 | |
