Quenching of photon and pion spectra at intermediate RHIC energy
| dc.creator | Arleo, Francois | |
| dc.date | 2007-06-13 | |
| dc.date.accessioned | 2026-07-07T13:06:32Z | |
| dc.date.available | 2026-07-07T13:06:32Z | |
| dc.description | Single prompt photon and pion spectra in p-p and Au-Au collisions at intermediate RHIC energy, s^1/2 = 62.4 GeV, are computed at large transverse momentum in perturbative QCD. Next-to-leading order calculations in p-p scattering are first presented. The quenching of the prompt photon and pion yield due to energy loss processes in central Au-Au with respect to p-p collisions is then predicted. At this energy, the small phase-space available to produce hard partons makes the pion quenching almost as pronounced as at s^1/2 = 200 GeV, despite the smaller gluon density of the produced medium. In the photon sector, energy loss effects prove small because of this very phase-space restriction, which favours the direct production channel. A significant suppression of high-pt photons is however predicted, because of a strong isospin effect together with the depletion of nuclear parton densities at large x. | |
| dc.description | 14 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/0706.1848 | |
| dc.identifier | http://arxiv.org/abs/0706.1848 | |
| dc.identifier | JHEP 0707:032,2007 | |
| dc.identifier | doi:10.1088/1126-6708/2007/07/032 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/227810 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Experiment | |
| dc.subject | Nuclear Theory | |
| dc.title | Quenching of photon and pion spectra at intermediate RHIC energy | |
| dc.type | text |