Nuclear shadowing and prompt photons at relativistic hadron colliders
| dc.creator | Mariotto, C. Brenner | |
| dc.creator | Goncalves, V. P. | |
| dc.date | 2008-07-10 | |
| dc.date | 2008-08-26 | |
| dc.date.accessioned | 2026-07-07T11:52:27Z | |
| dc.date.available | 2026-07-07T11:52:27Z | |
| dc.description | The production of prompt photons at high energies provides a direct probe of the dynamics of the strong interactions. In particular, one expect that it could be used to constrain the behavior of the nuclear gluon distribution in $pA$ and $AA$ collisions. In this letter we investigate the influence of nuclear effects in the production of prompt photons and estimate the transverse momentum dependence of the nuclear ratios $R_{pA} = {\frac{dσ(pA)}{dy d^2 p_T}} / A {\frac{dσ(pp)}{dy d^2 p_T}}$ and $R_{AA} = {\frac{dσ(AA)}{dy d^2 p_T}} / A^2 {\frac{dσ(pp)}{dy d^2 p_T}}$ at RHIC and LHC energies. We demonstrate that the study of these observables can be useful to determine the magnitude of the shadowing and antishadowing effects in the nuclear gluon distribution. | |
| dc.description | 4 pages, 3 figures. Version to be published in PRC | |
| dc.identifier | https://arxiv.org/abs/0807.1680 | |
| dc.identifier | http://arxiv.org/abs/0807.1680 | |
| dc.identifier | Phys.Rev.C78:037901,2008 | |
| dc.identifier | doi:10.1103/PhysRevC.78.037901 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/204236 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Nuclear shadowing and prompt photons at relativistic hadron colliders | |
| dc.type | text |