26-30 March 2012
University of Bonn
Europe/Berlin timezone

Measurement of Inclusive D* Meson and D* Meson Dijet Cross Sections in Photoproduction at HERA

27 Mar 2012, 11:54
18m
Drawing Room, Mathematical Institute (University of Bonn)

Drawing Room, Mathematical Institute

University of Bonn

Heavy flavours Heavy flavours

Speaker

Zlatka Georgieva Staykova (University of Antwerp (BE))

Description

The inclusive photoproduction of D* mesons and of D*-tagged dijets is investigated with the H1 detector at the $ep$ collider HERA. The kinematic region covers small photon virtualities $Q^{2} < 2\ {\rm GeV}^2$ and photon-proton centre-of-mass energies of $100 < W_{\gamma p} < 285\ {\rm GeV}$. Inclusive \dstar\ meson differential cross sections are measured for central rapidities $|\eta(D*)| < 1.5$ and transverse momenta $p_{T}(D*) >1.8\ {\rm GeV}$. The heavy quark production process is further investigated in events with at least two jets with transverse momentum $\ptj > 3.5\ {\rm GeV}$ each, one containing the \dstar\ meson. Differential cross sections for D*-tagged dijet production and for correlations between the jets are measured in the range $|\eta(D*)| < 1.5$ and $p_{T}(D*) >2.1\ {\rm GeV}$. The results are compared with predictions from Monte Carlo simulations and next-to-leading order perturbative QCD calculations.

Primary author

Karin Daum (University of Wuppertal/DESY)

Presentation materials