Measurement of d Mmesons production in deep inelastic scattering at HERA

Charm production in deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb{sup -1}. Charm has been tagged by reconstructing D*+, D{sup 0}, D{sup +} and D{sup +}{sub s} (+ c.c.) charm mesons. The charm hadrons were measured in the kinematic range p{sub T}(D*+,D{sup 0}0, D{sup +}) > 3 GeV, p{sub T}(D{sup +}{sub s}) > 2 GeV and |{eta}(D)| < 1.6 for 1.5 < Q{sup 2} < 1000 GeV{sup 2} and 0.02 < y < 0.7. The production cross sections were used to extract charm fragmentation ratios and the fraction of c quarks hadronising into a particular charm meson in the kinematic range considered. The cross sections were compared to the predictions of next-to-leading-order QCD, and extrapolated to the full kinematic region in p{sub T}(D) and {eta}(D) in order to determine the open-charm contribution, F{sub 2}{sup c}{anti c}(x, Q{sup 2}), to the proton structure function F{sub 2}.