Constraints for nuclear gluon densities from DIS data
| dc.creator | Eskola, K. J. | |
| dc.creator | Honkanen, H. | |
| dc.creator | Kolhinen, V. J. | |
| dc.creator | Salgado, C. A. | |
| dc.date | 2002-05-21 | |
| dc.date.accessioned | 2026-07-07T03:47:07Z | |
| dc.date.available | 2026-07-07T03:47:07Z | |
| dc.description | The $Q^2$ dependence of the ratios of nuclear structure functions $F_2^A$ is studied by performing QCD evolution of nuclear parton distribution functions. The log $Q^2$ slope of these ratios is very sensitive to the nuclear gluon distribution function. Taking different parametrizations, we show that the NMC data on the $Q^2$ dependence of $F_2^{\rm Sn}/F_2^{\rm C}$ rule out the case where nuclear shadowing (suppression) of gluons at $x\sim 0.01$ is much larger than the shadowing observed in the ratio $F_2^A/F_2^{\rm D}$. We also take into account modifications to the DGLAP evolution by including gluon fusion terms and see that the effect is small at present energies, and, in any case, a strong gluon shadowing is not favored. The region studied ($x \sim 0.01$) is the most relevant for RHIC multiplicities. | |
| dc.description | 4 pages, 3 postscript figures. Contributed to 37th Rencontres de Moriond on QCD and Hadronic Interactions, Les Arcs, France, 16-23 Mar 2002 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0205231 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0205231 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/41542 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Constraints for nuclear gluon densities from DIS data | |
| dc.type | text |