Production of Z0 bosons in elastic and quasi-elastic ep collisions at HERA
(2012)
Measurement of isolated photons accompanied by jets in deep inelastic ep scattering
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 715:1-3 (2012) 88-97
Abstract:
The production of isolated high-energy photons accompanied by jets has been measured in deep inelastic ep scattering with the ZEUS detector at HERA, using an integrated luminosity of 326pb -1. Measurements were made for exchanged photon virtualities, Q 2, in the range 10 to 350GeV 2. The photons were measured in the transverse-energy and pseudorapidity ranges 4Search for first-generation leptoquarks at HERA
Physical Review D - Particles, Fields, Gravitation and Cosmology 86:1 (2012)
Abstract:
A search for first-generation leptoquarks was performed in electron-proton and positron-proton collisions recorded with the ZEUS detector at HERA in 2003-2007 using an integrated luminosity of 366pb-1. Final states with an electron and jets or with missing transverse momentum and jets were analyzed, searching for resonances or other deviations from the standard model predictions. No evidence for any leptoquark signal was found. The data were combined with data previously taken at HERA, resulting in a total integrated luminosity of 498pb-1. Limits on the Yukawa coupling, λ, of leptoquarks were set as a function of the leptoquark mass for different leptoquark types within the Buchmüller-Rückl-Wyler model. Leptoquarks with a coupling λ=0.3 are excluded for masses up to 699 GeV. © 2012 American Physical Society.Optical rotation quasi-phase-matching for circularly polarized high harmonic generation
Optics Letters 37:12 (2012) 167066
Inclusive-jet photoproduction at HERA and determination of alphas
(2012)