Scaling and asymptotic behavior of the $γ^* p$ total cross section at low x
| dc.creator | Schildknecht, D. | |
| dc.date | 2001-09-19 | |
| dc.date.accessioned | 2026-07-07T03:45:18Z | |
| dc.date.available | 2026-07-07T03:45:18Z | |
| dc.description | The scaling in $σ_{γ^*p}$ cross sections (for $Q^2/W^2 << 1$) in terms of the scaling variable $η= (Q^2 + m^2_0)/Λ^2 (W^2)$ is interpreted in the generalized vector dominance/color-dipole picture (GVD/CDP). The quantity $Λ^2 (W^2)$ is identified as the average gluon transverse momentum absorbed by the $q \bar q$ state, $<\vec l^{~2}> = (1/6) Λ^2 (W^2)$. At any $Q^2$, for $W^2 \to \infty$, the cross sections for virtual and real photons become universal, $σ_{γ^*p}(W^2,Q^2)/σ_{γp}(W^2) \to 1$. The gluon density corresponding to the color-dipole cross section in the appropriate limit is found to be consistent with the results from QCD fits. | |
| dc.description | 8 pages, Latex using psfig, 5 figures, documentclass elsart. Presented at IX Blois Workshop on Elastic and Diffractive Scattering, Pruhonice near Prague, Czech Republic, June 9-15, 2001 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0109171 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0109171 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/40883 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Scaling and asymptotic behavior of the $γ^* p$ total cross section at low x | |
| dc.type | text |