Measurement of d* Photoproduction at three different centre-of-mass energies at Hera

The ZEUS collaboration

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2 Scopus citations


The photoproduction of D∗± mesons has been measured with the ZEUS detector at HERA at three different ep centre-of-mass energies, √s, of 318, 251 and 225GeV. For each data set, D∗± mesons were required to have transverse momentum, pD T , and pseudorapidity, ηD , in the ranges 1.9 < pD T < 20GeV and |ηD∗ | < 1.6. The events were required to have a virtuality of the incoming photon, Q2, of less than 1GeV2. The dependence on √s was studied by normalising to the high-statistics measurement at √s = 318GeV. This led to the cancellation of a number of systematic effects both in data and theory.

Original languageEnglish
Article number3
JournalJournal of High Energy Physics
Issue number10
StatePublished - Oct 2014


FundersFunder number
Not addedST/K001426/1
Science and Technology Facilities CouncilST/M001415/1, ST/H001026/1, ST/H001026/2
Science and Technology Facilities Council


    • Charm physics
    • Heavy quark production
    • Lepton-Nucleon Scattering
    • QCD


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