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Diffractive photoproduction of ρ mesons with large momentum transfer at HERA
(2006)Physics Letters BThe diffractive photoproduction of ρ mesons, e p → e ρ Y, with large momentum transfer squared at the proton vertex, |t|, is studied with the H1 detector at HERA using an integrated luminosity of 20.1 pb-1. The photon-proton centre of mass energy spans the range 75 < W < 95 GeV, the photon virtuality is restricted to Q2 < 0.01 GeV2 and the mass MY of the proton remnant is below 5 GeV. The t dependence of the cross section is measured ...Journal Article -
Search for doubly-charged Higgs boson production at HERA
(2006)Physics Letters BA search for the single production of doubly-charged Higgs bosons H± ± in ep collisions is presented. The signal is searched for via the Higgs decays into a high mass pair of same charge leptons, one of them being an electron. The analysis uses up to 118 pb-1 of ep data collected by the H1 experiment at HERA. No evidence for doubly-charged Higgs production is observed and mass dependent upper limits are derived on the Yukawa couplings he ...Journal Article -
A determination of electroweak parameters at HERA
(2006)Physics Letters BUsing the deep inelastic e+p and e-p charged and neutral current scattering cross sections previously published, a combined electroweak and QCD analysis is performed to determine electroweak parameters accounting for their correlation with parton distributions. The data used have been collected by the H1 experiment in 1994-2000 and correspond to an integrated luminosity of 117.2 pb-1. A measurement is obtained of the W propagator mass in ...Journal Article