Measurement of the t dependence in exclusive photoproduction of ϒ(1S) mesons at HERA
Physics Letters B Elsevier 708:1-2 (2012) 14-20
Abstract:
The exclusive photoproduction reaction γp→ϒ(1S)p has been studied with the ZEUS detector in ep collisions at HERA using an integrated luminosity of 468 pb−1. The measurement covers the kinematic range 60Combined inclusive diffractive cross sections measured with forward proton spectrometers in deep inelastic ep scattering at HERA
European Physical Journal C 72:10 (2012) 1-17
Abstract:
A combination of the inclusive diffractive cross section measurements made by the H1 and ZEUS Collaborations at HERA is presented. The analysis uses samples of diffractive deep inelastic ep scattering data at a centre-of-mass energy √s= 318 Gev where leading protons are detected by dedicated spectrometers. Correlations of systematic uncertainties are taken into account, resulting in an improved precision of the cross section measurement which reaches 6 % for the most precise points. The combined data cover the range 2.5 < Q2 < 200 GeV2 in photon virtuality, 0.00035 < xP < 0.09 in proton fractional momentum loss, 0.09 <{pipe}t{pipe}< 0.55 GeV2 in squared four-momentum transfer at the proton vertex and 0.0018 < β <0.816 in β=x/xP, where x is the Bjorken scaling variable. © 2012 The Author(s).Exclusive electroproduction of two pions at HERA
European Physical Journal C 72:1 (2012) 1-12
Abstract:
The exclusive electroproduction of two pions in the mass range 0.4Production of Z 0 bosons in elastic and quasi-elastic ep collisions at HERA
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics (2012)
Scaled momentum distributions for KS0 and Λ/(Λ)over-bar in DIS at HERA
JOURNAL OF HIGH ENERGY PHYSICS (2012) ARTN 020