Role of the singular factors in the standard fits for initial parton densities
| dc.creator | Ermolaev, B. I. | |
| dc.creator | Greco, M. | |
| dc.creator | Troyan, S. I. | |
| dc.date | 2005-11-30 | |
| dc.date.accessioned | 2026-07-07T06:50:12Z | |
| dc.date.available | 2026-07-07T06:50:12Z | |
| dc.description | Total resummation of double- and single- logarithms of x contributing to the spin-dependent structure function g_1 ensures its steep rise at small $x$. In the asymptotic limit x ->0, the resummation leads to the Regge behavior of g_1 and allows to calculate the non-singlet and singlet intercepts of g_1. DGLAP lacks such a resummation but suggests special phenomenological fits for the initial parton densities such that the singular factors x^{-α} in the fits mimic the resummation and also provide g_1 with the steep (power-like) rise at the small-x region. Accounting for the total resummaton of logarithms of x allows to drop the singular factors in the fits and leads to remarkable simplifications of the fits. | |
| dc.description | Invited talk at the XI Workshop on High Energy Spin Physics, Dubna, Russia, September 27 - October 1, 2005, 4 pages, LaTeX | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0511343 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0511343 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/104605 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Role of the singular factors in the standard fits for initial parton densities | |
| dc.type | text |