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Measurement of charm production in DIS with inclusive secondary vertices and determination of F cc̄ 2 with the ZEUS detector at HERA

Charm production in deep inelastic scattering has been measured with the ZEUS detector using the full HERA II data set. The charm content in events with a jet has been extracted using the decay length significance and invariant mass of secondary vertices. Differential cross sections as a function of the photon virtuality Q, Bjorken x, jet transverse energy E T and jet pseudorapidity η jet were measured and compared to theoretical predictions. The open charm contribution to the proton structure function F2 was extracted from double differential cross sections.