Running coupling effects for the singlet structure function g_1 at small x
| dc.creator | Ermolaev, B. I. | |
| dc.creator | Greco, M. | |
| dc.creator | Troyan, S. I. | |
| dc.date | 2003-07-09 | |
| dc.date | 2003-11-18 | |
| dc.date.accessioned | 2026-07-07T11:47:38Z | |
| dc.date.available | 2026-07-07T11:47:38Z | |
| dc.description | The running of the QCD coupling is incorporated into the infrared evolution equations for the flavour structure function g_1. The explicit expressions for g_1 including the total resummation of the double-logarithmic contributions and accounting for the running coupling are obtained. We predict that asymptotically g_1 ~ x^{- Δ_S}, with the intercept Δ_S = 0.86, which is more than twice larger than the non-singlet intercept. The impact of the initial quark (δq) and gluon (δg) densities on the sign of g_1 at x << 1 is discussed and explicit expressions relating δq and δg are obtained. | |
| dc.description | The sign of g_1 at small x is discussed in more details, 3 refs are added | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0307128 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0307128 | |
| dc.identifier | Phys.Lett.B579:321-330,2004 | |
| dc.identifier | doi:10.1016/j.physletb.2003.11.016 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/202638 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Running coupling effects for the singlet structure function g_1 at small x | |
| dc.type | text |