A traditional Regge model with a Q 2 -independent Pomeron intercept closed (or equal) to one is constructed in order to describe the available data on the proton structure function. A Dipole Pomeron model which does not explicitly violate unitarity is developed and investigated. An excellent agreement with the 1209 data is found (χ 2 /dof = 1.11) in the whole kinematical domain investigated by experiments. A comparison of the model with already existing ones is made. The x−, Q 2 −slopes and the effective intercept are discussed as Q 2 and x functions. †

The standard additive quark model and the ensuing counting rules are modified to take into account the quark-gluonic content of the Pomeron and of the secondary Reggeons. The result is that a much improved description of pp, πp, γp and γγ cross-sections is achieved.