A global analysis of diffractive events at HERA

We extract diffractive parton distribution functions (DPDFs) and diffractive structure functions from the most recent H1 and ZEUS diffractive deep inelastic scattering data obtained by various methods. We consider the Pomeron as an object with PDF, evolving according to the next-to-leading order DGLAP equations within the framework of the 'fixed flavour number scheme'. Having performed a global fit analysis, we achieve a very good description of all available measurements by introducing a new set of quark distribution forms for the Pomeron. We predict longitudinal and charm proton diffractive structure function as well. Our results are compared with other analyses from the literature.