Unintegrated parton distributions and inclusive jet productionat HERA

G. Watt, A. D. Martin, M. G. Ryskin
2003 European Physical Journal C: Particles and Fields  
We describe how unintegrated parton distributions can be calculated from conventional integrated distributions. We extend and improve the 'last-step' evolution approach, and explain why doubly-unintegrated parton distributions are necessary. We generalise k_t-factorisation to (z,k_t)-factorisation. We apply the formalism to inclusive jet production in deep-inelastic scattering, mainly at leading-order, but we also study the extension to next-to-leading order. We compare the predictions with
more » ... redictions with recent HERA data.
doi:10.1140/epjc/s2003-01320-4 fatcat:ouhcgmrft5dclalzofrhn6g7oy