An approach to fast fits of the unintegrated gluon density
  An approach to fast fits of the unintegrated gluon density has been developed and used to determine the unintegrated gluon density by fits to deep inelastic scatting di-jet data from HERA. The fitting method is based on the determination of the parameter dependence by help of interpolating between grid points in the parameter-observable space before the actual fit is performed. 
A. Knutsson, A. Bacchetta, H. Jung, K. Kutak