Karlin M Danielsen

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This paper describes the silicon microstrip modules in the barrel section of the SemiConductor Tracker (SCT) of the ATLAS experiment at the CERN Large Hadron Collider (LHC). The module requirements, components and assembly techniques are given, as well as first results of the module performance on the fully-assembled barrels that make up the detector being(More)
Magnetite is precipitated by dissimilatory iron-reducing bacteria or forms through corrosion of zero-valent iron (ZVI) in permeable reactive barriers. Reduction of carbon tetrachloride (CCl4) by synthetic magnetite was examined in batch reactors to evaluate the pH dependence of the reaction rates and product distributions. This work presents the first data(More)
A partial wave analysis of the centrally produced π + π − system in pp interactions at 450 GeV/c Abstract A partial wave analysis of the centrally produced π + π − channel has been performed in pp collisions using an incident beam momentum of 450 GeV/c. An unambiguous physical solution has been found. Evidence is found for the f 0 (980), f 0 (1300), f 0(More)
Measurements of the kinematic distributions of J/ψ mesons produced in p−C, p−Ti and p−W collisions at √ s = 41.6 GeV in the Feynman-x region −0.34 < xF < 0.14 and for transverse momentum up to pT = 5.4 GeV/c are presented. The xF and pT dependencies of the nuclear suppression parameter, α, are also given. The results are based on 2.4 · 10 J/ψ mesons in both(More)
A study of the angular distributions of leptons from decays of J/ψ’s produced in p-C and p-W collisions at √ s = 41.6 GeV has been performed in the J/ψ Feynman-x region −0.34 < xF < 0.14 and for J/ψ transverse momenta up to 5.4 GeV/c. The data were collected by the HERA-B experiment at the HERA proton ring of the DESY laboratory. The results, based on a(More)
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Evidence is presented that the Pomeron act as a non-conserved vector current. A study has been made of the azimuthal angle φ, which is defined as the angle between the p T vectors of the two outgoing protons, in the reaction pp → pp(X 0) for those resonances (X 0) which are compatible with being produced by double Pomeron exchange. These distributions have(More)