Color dipole cross section and inelastic structure function

Yu Seon Jeong, C. S. Kim, Minh Vu Luu, Mary Hall Reno

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Instead of starting from a theoretically motivated form of the color dipole cross section in the dipole picture of deep inelastic scattering, we start with a parametrization of the deep inelastic structure function for electromagnetic scattering with protons, and then extract the color dipole cross section. Using the parametrizations of F2(ξ = x or W2, Q2) by Donnachie-Landshoff and Block et al., we find the dipole cross section from an approximate form of the presumed dipole cross section convoluted with the perturbative photon wave function for virtual photon splitting into a color dipole with massless quarks. The color dipole cross section determined this way reproduces the original structure function within about 10% for 0.1 GeV2 ≤ Q2 ≤10 GeV2. We discuss the dipole cross section at large and small dipole sizes and compare our results with other parametrizations.

Original languageEnglish
Article number25
JournalJournal of High Energy Physics
Volume2014
Issue number11
DOIs
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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