English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The production of D*+-(2010) mesons in deep inelastic scattering has beenmeasured in the ZEUS detector at HERA using an integrated luminosity of 37pb^-1. The decay channels D*+ -> D0 pi+(+c.c.), with D0 -> K- pi+ or D0 ->K-pi- pi+ pi+, have been used to identify the D mesons. The e+p cross section forinclusive D*+- production with 1<Q^2<600 GeV^2 and 0.02<y<0.7 is 8.31 +-0.31(stat.) +0.30-0.50(syst.) nb in the kinematic region 1.5< pT(D*+-)<15 GeVand |eta(D*+-)|<1.5. Differential cross sections are consistent with anext-to-leading-order perturbative-QCD calculation when usingcharm-fragmentation models which take into account the interaction of the charmquark with the proton remnant.  The observed cross section is extrapolated to the full kinematic region inpT(D*+-) and eta(D*+-) in order to determine the charm contribution,F^ccbar_2(x,Q^2), to the proton structure function. The ratio  F^ccbar_2/F_2 rises from ~10% at Q^2 ~1.8 GeV^2 to ~30% at Q^2 ~130 GeV^2 forx values in the range 10^-4 to 10-3.Comment: 35 pages, 9 figures. Correction 7/10/99: Figure 9 has been updated.  Correction 3/04/00: Miss-prints in tables (1,2,3) and in Figure 5 have been  correcte

Measurement of $D^{\ast \pm}$ production and the charm contribution to $F_2$ in deep inelastic scattering at HERA