An Observation on F_2 at Low x

Abstract

A simple parametrisation of H1 and ZEUS data at HERA is given for the ranges in x and Q^2 of 10^{-4} - 5.10^{-2} and 5 - 250 GeV^2, respectively. This empirical expression is based on a strikingly similar dependence of the average charged particle multiplicity <n> on the centre of mass system energy sqrt{s} in e+e- collisions on the one hand, and the x dependence of the proton structure function F_2 as measured at small x on the other hand. To the best of our knowledge, this similarity has not been noted before.

10 pages, latex, 5 Figures

References in corpus (6)

• Measurement of the proton and the deuteron structure functions F2p and F2d
• A Measurement and QCD Analysis of the Proton Structure Function $F_2(x,Q^2)$ at HERA
• Proton structure function at small Q^2
• Double Asymptotic Scaling at HERA
• Measurement of the Proton Structure Function $F_2$ at low $x$ and low $Q^2$ at HERA
• Testing the running of the QCD coupling in particle energy spectra

Cited by in corpus (5)

• Structure Functions of the Nucleon and their Interpretation
• Small x behaviour of parton distributions with soft initial conditions
• Ultra-high energy neutrino-nucleon interactions
• How fast do small x structure function rise ? A comparative analysis
• Parametrising the proton structure function