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Multi-leptons with high transverse momentum at HERA
(2009)Journal of High Energy PhysicsJournal Article -
Measurement of the charm and beauty structure functions using the H1 vertex detector at HERA
(2010)The European Physical Journal CInclusive charm and beauty cross sections are measured in e − p and e + p neutral current collisions at HERA in the kinematic region of photon virtuality 5≤Q 2≤2000 GeV2 and Bjorken scaling variable 0.0002≤x≤0.05. The data were collected with the H1 detector in the years 2006 and 2007 corresponding to an integrated luminosity of 189 pb−1. The numbers of charm and beauty events are determined using variables reconstructed by the H1 vertex ...Journal Article -
Multi-lepton production at high transverse momenta in ep collisions at HERA
(2008)Physics Letters BProcesses leading to a final state with at least two high transverse momentum leptons (electrons or muons) are studied using the full e ± p data sample collected by the H1 experiment at HERA. The data correspond to an integrated luminosity of 463 pb -1. Di-lepton and tri-lepton event classes are investigated. Cross sections of the production of e + e - and μ + μ - pairs are derived in a restricted phase space dominated by photon-photon ...Journal Article -
Measurement of deeply virtual Compton scattering and its t-dependence at HERA
(2008)Physics Letters BA measurement of elastic deeply virtual Compton scattering γ * p → γ p using e - p collision data recorded with the H1 detector at HERA is presented. The analysed data sample corresponds to an integrated luminosity of 145 pb -1. The cross section is measured as a function of the virtuality Q 2 of the exchanged photon and the centre-of-mass energy W of the γ * p system in the kinematic domain 6.5 < Q 2 < 80 GeV 2, 30 < W < 140 GeV and | t ...Journal Article