Self - similar Properties of the Proton Structure at low x

Self-similar properties of proton structure in the kinematic region of low Bjorken x are introduced and studied numerically. A description of the proton structure function F 2 (x, Q 2) reflecting self-similarity is proposed with a few parameters which are fitted to recent HERA data. The specific parameterisation provides an excellent description of the data which cover a region of four momentum transfer squared, 0.045 ≤ Q 2 ≤ 120 GeV 2 , and of Bjorken x, 6.2 · 10 −7 ≤ x ≤ 0.01 .