Dissociation of virtual photons in events with a leading proton at HERA
EUROPEAN PHYSICAL JOURNAL C 38:1 (2004) 43-67
Exclusive electroproduction of J/ψ mesons at HERA
NUCLEAR PHYSICS B 695:1-2 (2004) 3-37
Measurement of high-Q2 charged current cross sections in e +p deep inelastic scattering at HERA
European Physical Journal C 32:1 (2003) 1-16
Abstract:
Cross sections for e+p charged current deep inelastic scattering at a centre-of-mass energy of 318 GeV have been determined with an integrated luminosity of 60.9 pb-1 collected with the ZEUS detector at HERA. The differential cross sections dσ/dQ2, dσ/dx and dσ/dy for Q2 > 200 GeV2 are presented. In addition, d2σ/dxdQ2 has been measured in the kinematic range 280 GeV2 < Q2 < 17 000 GeV2 and 0.008 < x < 0.42. The predictions of the Standard Model agree well with the measured cross sections. The mass of the W boson propagator is determined to be MW = 78.9 ± 2.0 (stat.) ± 1.8 (syst.) -1.8+2.0 (PDF) GeV from a fit to dσ/dQ2. The chiral structure of the Standard Model is also investigated in terms of the (1-y)2 dependence of the double-differential cross section. The structure-function F2CC has been extracted by combining the measurements presented here with previous ZEUS results from e-p scattering, extending the measurement obtained in a neutrino-nucleus scattering experiment to a significantly higher Q2 region.Measurement of the open-charm contribution to the diffractive proton structure function
Nuclear Physics B 672:1-2 (2003) 3-35
Abstract:
Production of D*±(2010) mesons in diffractive deep inelastic scattering has been measured with the ZEUS detector at HERA using an integrated luminosity of 82 pb-1. Diffractive events were identified by the presence of a large rapidity gap in the final state. Differential cross sections have been measured in the kinematic region 1.5Jet production in charged current deep inelastic e+p scattering at HERA
European Physical Journal C 31:2 (2003) 149-164