2006/10/23 by M. M. Block, E. L. Berger, Edmond L. Berger +2
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevlett.97.252003
published as Phys.Rev.Lett.97:252003,2006 · 10 pages, 2 figures
arxiv created 2006/10/23 · openalex publication_date 2006/12/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
We fit the reduced cross section for deep-inelastic electron scattering data to a three parameter ln2s fit, A+\ensuremathβln2(s/s0), where s=\fracQ2x(1\ensuremath-x)+m2, and Q2 is the virtuality of the exchanged photon. Over a wide range in Q2 (0.11\ensuremath≤Q2\ensuremath≤1200 GeV2) all of the fits satisfy the logarithmic energy dependence of the Froissart bound. We can use these results to extrapolate to very large energies and hence to very small values of Bjorken x---well beyond the range accessible experimentally. As Q2\ensuremath→\ensuremath∞, the structure function F2p(x,Q2) exhibits Bjorken scaling, within experimental errors. We obtain new constraints on the behavior of quark and antiquark distribution functions at small x.