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97 papers · 1 filter
Measurement of the top quark pair production cross section in the lepton+jets channel in proton-antiproton collisions at =1.96 TeV
D0 Collaboration, V. Abazov
We present a measurement of the inclusive top quark pair production cross section in \ppbar collisions at (\sqrt{s}=1.96) TeV utilizing data corresponding to an integrated luminosi…
H.E.S.S. constraints on Dark Matter annihilations towards the Sculptor and Carina Dwarf Galaxies
HESS Collaboration, A. Abramowski, F. Acero +192
The Sculptor and Carina Dwarf spheroidal galaxies were observed with the H.E.S.S. Cherenkov telescope array between January 2008 and December 2009. The data sets consist of a total…
Simulations of astrophysical dynamos
Axel Brandenburg
Numerical aspects of dynamos in periodic domains are discussed. Modifications of the solutions by numerically motivated alterations of the equations are being reviewed using the ex…
How can vorticity be produced in irrotationally forced flows?
Fabio Del Sordo, Axel Brandenburg
A spherical hydrodynamical expansion flow can be described as the gradient of a potential. In that case no vorticity should be produced, but several additional mechanisms can drive…
Magnetocrystalline anisotropy and uniaxiality of MnAs/GaAs(100) films
J. Magnus Wikberg, Ronny Knut, Sumanta Bhandary +9
We present an investigation of the magnetic behavior of epitaxial MnAs films grown on GaAs(100). We address the dependence of the magnetic moment, ferromagnetic transition temperat…
On the speed of biased random walk in translation invariant percolation
Maria Deijfen, Olle Häggström
For biased random walk on the infinite cluster in supercritical i.i.d.\ percolation on , where the bias of the walk is quantified by a parameter , it has been conjecture…