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56 papers · 1 filter
Quantum Magnets with Anisotropic Infinite Range Random Interactions
Liliana Arrachea, Marcelo J. Rozenberg
Using exact diagonalization techniques we study the dynamical response of the anisotropic disordered Heisenberg model for systems of S=1/2 spins with infinite range random exchange…
Computing communities in large networks using random walks
Matthieu Latapy, Pascal Pons
Dense subgraphs of sparse graphs (communities), which appear in most real-world complex networks, play an important role in many contexts. Computing them however is generally expen…
Ion backflow in the Micromegas TPC for the future linear collider
P. Colas, I. Giomataris, V. Lepeltier
We present ion backflow measurements in a Micromegas (MICRO-MEsh GASeous detector) TPC device developed for the next high energy electron-positron linear collider under study and a…
Large deviations for rough paths of the fractional Brownian motion
Annie Millet, Marta Sanz-Solé
Starting from the construction of a geometric rough path associated with a fractional Brownian motion with Hurst parameter given by Coutin and Qian (2002), we…
Radiodetection of Cosmic Ray Extensive Air Showers
D. Ardouin, A. Belletoile, D. Charrier +12
We present the characteristics and performance of a demonstration experiment devoted to the observation of ultra high- energy cosmic ray extensive air showers using a radiodetectio…
Measurement of the Radiative Ke3 Branching Ratio
NA48 collaboration
We present a measurement of the relative branching ratio of the decay KL -> pi e nu gamma (Ke3gamma) with respect to KL-> pi e nu (gamma) (Ke3+Ke3gamma) decay. The result is based…