We derive a modified form of the BFKL equation which enables the structure of the gluon emissions to be studied in small $x$ deep-inelastic scattering. The equation incorporates the resummation of the virtual and unresolved real gluon emissions. We solve the equation to calculate the number of small $x$ deep-inelastic events containing 0,1,2,... resolved gluon jets, that is, jets with transverse momenta $q_T>\mu$, We study the jet decomposition for different choices of the jet resolution parameter $\mu$.

• Received 19 June 1996

DOI:https://doi.org/10.1103/PhysRevD.54.6664