One more ingredient for energy loss quantification
| dc.creator | Hamed, A. M. | |
| dc.date | 2008-10-22 | |
| dc.date.accessioned | 2026-07-07T10:12:21Z | |
| dc.date.available | 2026-07-07T10:12:21Z | |
| dc.description | The recent results at RHIC for direct $γ$-charged hadron azimuthal correlations in heavy-ion collisions are presented. We use these correlations to study the color charge density of the medium through the medium-induced modification of high-p$_T$ parton fragmentation. Azimuthal correlations of direct photons at high transverse energy (8 $<$ E$_T$ $<$ 16 GeV) with away-side charged hadrons of transverse momentum (3 $<$ p$_T$ $<$ 6 GeV/c) have been measured over a broad range of centrality for $Au+Au$ collisions and $p+p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV in the STAR experiment. A transverse shower shape analysis in the STAR Barrel Electromagnetic Calorimeter Shower Maximum Detector is used to discriminate between the direct photons and photons from the decays of high-p$_T$ $π^{0}$. The per-trigger away-side yield of direct $γ$ is smaller than from $π^{0}$ triggers in the same centrality class. Within the current uncertainty the recoil suppression in central $Au+Au$ collisions I$_{CP}$ of direct $γ$ and $π^{0}$ are similar. | |
| dc.description | 5 pages, 7 figures, Hot Quarks 2008 | |
| dc.identifier | https://arxiv.org/abs/0810.3951 | |
| dc.identifier | http://arxiv.org/abs/0810.3951 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/172158 | |
| dc.subject | Nuclear Experiment | |
| dc.title | One more ingredient for energy loss quantification | |
| dc.type | text |