Bonn 2010 – scientific programme

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T: Fachverband Teilchenphysik

T 30: QCD III

T 30.2: Talk

Wednesday, March 17, 2010, 14:15–14:30, HG VIII

Measurement of the D*(2010) mesons in photoproduction with ZEUS data — •Olena Bachynska — DESY,Hamburg,Germany

This study is based on the data taken by ZEUS detector in 2003-2007 when HERA 920 GeV protons were collided with 27.5 GeV electrons. D*(2010)→ (K,π)π_s mesons were reconstructed in photoproduction with 130<W<285 GeV. D*s were required to have p_T^D*>1.9 GeV and |η(D^*)|<1.6 The full HERAII statistics allows to increase the precision with respect to earlier results and to provide better QCD tests. Differential cross sections were calculated and compared with QCD predictions and HERAI preliminary results.