25 research outputs found
Recent results from the H1 experiment at HERA
A review is presented of recent results from the H1 Experiment at the electron-proton collider HERA. The summary comprises new results on the quark and gluon structure of the proton, on the strong coupling s, on the production of jets and hadrons and on hard diffractive scatterin
Measurement of Feynman-x Spectra of Photons and Neutrons in the Very Forward Direction in Deep-Inelastic Scattering at HERA
Measurements of normalised cross sections for the production of photons and neutrons at very small angles with respect to the proton beam direction in deep-inelastic ep scattering at HERA are presented as a function of the Feynman variable xF and of the centre-of-mass energy of the virtual photon-proton system W. The data are taken with the H1 detector in the years 2006 and 2007 and correspond to an integrated luminosity of 131 pb−1. The measurement is restricted to photons and neutrons in the pseudorapidity range η > 7.9 and covers the range of negative four momentum transfer squared at the positron vertex 6 < Q2 < 100 GeV2, of inelasticity 0.05 < y < 0.6 and of 70 < W < 245 GeV. To test the Feynman scaling hypothesis the W dependence of the xF dependent cross sections is investigated. Predictions of deep-inelastic scattering models and of models for hadronic interactions of high energy cosmic rays are compared to the measured cross sections
Recent Results from the H1 Experiment at HERA
A review is presented of recent results from the H1 Experiment at the electron-proton collider HERA. The summary comprises new results on the quark and gluon structure of the proton, on the strong coupling s, on the production of jets and hadrons and on hard diffractive scatterin
Leading Hadron Production at HERA
Data from the recent measurements of very forward baryon and photon production with the H1 andZEUS detectors at electron-proton collider HERA are presented and compared to the theoretical calculationsand Monte Carlo models.Results are presented of the production of leading protons, neutrons and photons in deep inelastic scattering(ep→e′pX,ep→e′nX,ep→e′γX) as well as the leading neutron production in the photoproduction of dijets (ep→ejjXn). The forward baryon and photon results from the H1 and ZEUS Experiments are compared also with the models of the hadronic interactions of high energy Cosmic Rays. The sensitivity of the HERA data to the differences between the models is demonstrated