Measurement of azimuthal asymmetries in neutral current deep inelastic scattering at HERA
European Physical Journal C 51:2 (2007) 289-299
Abstract:
The distribution of the azimuthal angle of charged and neutral hadrons relative to the lepton plane has been studied for neutral current deep inelastic ep scattering using an integrated luminosity of 45 pb-1 taken with the ZEUS detector. The kinematic range is 100Bose-Einstein Correlations of Charged and Neutral Kaons in Deep Inelastic Scattering at HERA
ArXiv 0706.2538 (2007)
Measurement of K0S , Λ and Λ production at HERA
European Physical Journal C 51:1 (2007) 1-23
Abstract:
The production of the neutral strange hadrons K0S, Λ and Λ has been measured in ep collisions at HERA using the ZEUS detector. Cross sections, baryon-to-meson ratios, relative yields of strange and charged light hadrons, Λ (Λ) asymmetry and polarization have been measured in three kinematic regions: Q2 > 25 GeV2; 5 < Q2 < 25 GeV2; and in photoproduction (Q 2 0). In photoproduction the presence of two hadronic jets, each with at least 5 GeV transverse energy, was required. The measurements agree in general with Monte Carlo models and are consistent with measurements made at e+e- colliders, except for an enhancement of baryon relative to meson production in photoproduction. © Springer-Verlag / Società Italiana di Fisica 2007.Measurement of D* ± meson production in e± p scattering at low Q2
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 649:2-3 (2007) 111-121