Oliver Thewalt

    Oliver Thewalt

    Theoretical Physics | Quantum Biology | Dark Matter Research | Energy Consulting | Creation of Hydrogen ATOM in the Higgs Field >> Vote for Nobel Prize

    An introduction to Pomerons

    https://arxiv.org/abs/hep-ph/9808486v1

     

    E.Levin (DESY & Tel Aviv Univ.)
    (Submitted on 31 Aug 1998)
    This talk is an attempt to clarify for experimentalists what we (theorists) mean when we are saying "Pomeron". I hope, that in this talk they will find answers to such questions as what is Pomeron, what we have learned about Pomeron, both experimentally and theoretically, what is correct strategy to study Pomeron experimentally and etc. I also hope that this talk could be used as a guide in the zoo of Pomerons: "soft" Pomeron, "hard" Pomeron, the BFKL Pomeron, the Donnachie-Landshoff Pomeron and so on. The large number of different Pomerons just reflects our poor understanding of high energy asymptotics in out microscopic theory -QCD. The motto of my talk, which gives you my opinion on the subject in short is:``Pomeron is still unknown but needed for 25 year to describe experimental data".

    The formal definition of Reggeon is the pole in the partial wave in t-channel of the scattering process. [...] Pomeron is a Reggeon with the intercept close to 1. [...] “Hard” Pomeron is a substitute for the following sentence: the asymptotic for the cross section at high energy for the “hard” processes which occur at small distances of the order of 1/Q where Q is the largest transverse momentum scale in the process.