Phenomenology of next-leading BFKL
| dc.creator | Schoeffel, L. | |
| dc.date | 2005-05-13 | |
| dc.date.accessioned | 2026-07-07T03:54:53Z | |
| dc.date.available | 2026-07-07T03:54:53Z | |
| dc.description | We propose a phenomenological study of the Balitsky-Fadin-Kuraev-Lipatov (BFKL) approach applied to the data on the proton structure function $F_2$ measured at HERA in the small-$x_{Bj}$ region ($x_{Bj}<0.01$) and $Q^2$ in the range 5 to 120 GeV$^2$. With a simplified ``effective kernel'' approximation, we present a comparison between leading-logs (LO) and next-to-leading logs (NLO) BFKL approaches in the saddle-point approximation, using known resummed NLO-BFKL kernels. The LO result gives a very good description of the data with a three parameters fit of $F_2$ but an unphysical value of the strong coupling constant, whereas the NLO two parameters fit leads to a qualitatively satisfactory account of the running coupling constant effect but quantitatively, for $Q^2 < 10$ GeV$^2$, it fails to reproduce properly the data. | |
| dc.description | 4 pages, 2 figures ; contribution to the XXXXth Rencontres de Moriond QCD and High Energy Hadronic Interactions, La Thuile, March 2005 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0505114 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0505114 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/44367 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Phenomenology of next-leading BFKL | |
| dc.type | text |