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The bremsstrahlung energy loss distribution of electrons propagating in matter is highly non Gaussian. Because the Kalman filter relies solely on Gaussian probability density functions, it might not be an optimal reconstruction algorithm for electron tracks. A Gaussian-sum filter (GSF) algorithm for electron track reconstruction in the CMS tracker has(More)
A time-dependent method that allows the modelling of the flow of electrons in a nanoscale device in the presence of open boundaries is presented. This method is applied to the simplest possible device (one atom attached to two leads) to investigate steady-state conduction, and the variation of the electric current in the presence of a rapidly varying(More)
A systematic treatment of the magnetic fluctuations effect on the properties of the normal-to-superconducting phase transition in a zero external magnetic field is given within the self-consistent approximation and the quasi-macroscopic Ginzburg-Landau model. New results for thin superconducting films are presented. Thermo-dynamic quantities having a direct(More)
In an analysis of multihadronic events recorded at LEP by DELPHI in the years 1992 through 1994, charged hadrons are identiied using the measurement of their energy loss and their Cherenkov angle. Rapidity correlations of-, proton-proton, and-proton pairs are compared. The agreement with the string and cluster fragmentation models is tested. For those pairs(More)
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