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Measurement of the Energy Dependence of the Total Photon-proton Cross Section at HERA

  • ZEUS Collaboration

    Research output: Contribution to journal › Article › peer-review

    Abstract

    The energy dependence of the photon-proton total cross section, σ γp/tot , was determined from e+p scattering data collected with the ZEUS detector at HERA at three values of the center-of-mass energy, W, of the γp system in the range 194 < W < 296 GeV. This is the first determination of the W dependence of σ γp/tot from a single experiment at high W. Parameterizing σ γp tot ∝ W2ǫ , ǫ = 0.111 ± 0.009 (stat.) ± 0.036 (syst.) was obtained.
    Original languageAmerican English
    Pages (from-to)184-196
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume697
    Issue number3
    DOIs
    StatePublished - Mar 7 2011

    Keywords

    • Energy dependence
    • Photoproduction
    • Total cross section

    Disciplines

    • Physics

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