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A search for excited electron (e) production is described in which the electroweak decays e → eγ , e → eZ and e → νW are considered. The data used correspond to an integrated luminosity of 120 pb taken in ep collisions from 1994 to 2000 with the H1 detector at HERA at centre-of-mass energies of 300 and 318 GeV. No evidence for a signal is found. Mass(More)
The inclusive e+p single and double differential cross sections for neutral and charged current processes are measured with the H1 detector at HERA. The data were taken in 1999 and 2000 at a centre-of-mass energy of √ s = 319GeV and correspond to an integrated luminosity of 65.2 pb−1. The cross sections are measured in the range of four-momentum transfer(More)
The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q2 between 150 and 30 000 GeV2 and with Bjorken x between 0:0032 and 0:65 are measured in e+p collisions. The data were taken with the H1 detector at HERA between 1994 and 1997, and they correspond to an integrated(More)
A detailed analysis is presented of the diffractive deep-inelastic scattering process ep → eXY , where Y is a proton or a low mass proton excitation carrying a fraction 1−x IP > 0.95 of the incident proton longitudinal momentum and the squared four-momentum transfer at the proton vertex satisfies |t| < 1 GeV2. Using data taken by the H1 experiment, the(More)
A new measurement of the proton structure function F2(x,Q ) is reported for momentum transfers squared Q between 1.5 GeV and 5000 GeV and for Bjorken x between 3 · 10 and 0.32 using data collected by the HERA experiment H1 in 1994. The data represent an increase in statistics by a factor of ten with respect to the analysis of the 1993 data. Substantial(More)
Jet production is studied in the Breit frame in deep-inelastic positron-proton scattering over a large range of four-momentum transfers 5 < Q2 < 15 000GeV and transverse jet energies 7 < ET < 60GeV. The analysis is based on data corresponding to an integrated luminosity of Lint ≃ 33 pb taken in the years 1995–1997 with the H1 detector at HERA at a(More)
The diffractive photoproduction of J/ψ mesons is measured with the H1 detector at the ep collider HERA using an integrated luminosity of 78 pb−1. The differential cross section dσ(γp → J/ψY )/dt is studied in the range 2 < |t| < 30 GeV2, where t is the square of the four-momentum transferred at the proton vertex. The cross section is also presented as a(More)
A search for single top quark production is performed in ep collisions at HERA. The search exploits data corresponding to an integrated luminosity of 118.3 pb. A model for the anomalous production of top quarks in a flavour changing neutral current process involving a tuγ coupling is investigated. Decays of top quarks into a b quark and a W boson are(More)
A search for events with a high energy isolated electron or muon and missing transverse momentum has been performed at the electron–proton collider HERA using an integrated luminosity of 13.6 pb in ep scattering and 104.7 pb in ep scattering. Within the Standard Model such events are expected to be mainly due to W boson production with subsequent leptonic(More)
A measurement is made of the cross section for the process ep → eXY in deepinelastic scattering with the H1 detector at HERA. The cross section is presented in terms of a differential structure function F D(3) 2 (xIP , β,Q 2) of the proton over the kinematic range 4.5 < Q2 < 75GeV. The dependence of F D(3) 2 on xIP is found to vary with β, demonstrating(More)