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Journals and Conferences
Over the past several years, substantial research effort has gone into measuring the efficiency of financial institutions. Many studimhave found that inefficiencies are quite huge, on the order of 20% or more of total banking industry cosu and about hal.fof the indmtry’s potential profi~. There is no consensus on the sources of the differences in measured… (More)
We consider the simple random walk on the (unique) infinite cluster of super-critical percolation in Z with d ≥ 2. We prove that, for almost every percolation configuration, the path distribution of the walk converges weakly to that of non-degenerate Brownian motion.
Bounds for the diameter and expansion of the graphs created by long-range percolation on the cycle Z/NZ, are given.
We analyze the contact process on random graphs generated according to the preferential attachment scheme as a model for the spread of viruses in the Internet. We show that any virus with a positive rate of spread from a node to its neighbors has a non-vanishing chance of becoming epidemic. Quantitatively, we discover an interesting dichotomy: for a virus… (More)
We study the behavior of the random walk on the infinite cluster of independent long range percolation in dimensions d = 1, 2, where x and y are connected with probability ∼ β/‖x − y‖−s. We show that when d < s < 2d the walk is transient, and when s ≥ 2d, the walk is recurrent. The proof of transience is based on a renormalization argument. As a corollary… (More)
ABSTRACT. We prove that every nearest neighbor random walk in i.i.d. environment in dimension greater than or equal to 4 that has an almost sure positive speed in a certain direction, an annealed invariance principle and some mild integrability condition for regeneration times also satisfies a quenched invariance principle. The argument is based on… (More)
A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the H→γγ and H→ZZ→4ℓ decay channels. The results are obtained from a simultaneous fit to the reconstructed invariant mass peaks in the two channels and for the two experiments. The measured masses from the individual… (More)
A search is presented for direct top squark pair production in final states with one isolated electron or muon, jets, and missing transverse momentum in proton-proton collisions at sqrt[s] = 7 TeV. The measurement is based on 4.7 fb(-1) of data collected with the ATLAS detector at the LHC. Each top squark is assumed to decay to a top quark and the lightest… (More)
A detailed analysis is presented of the diffractive deep-inelastic scattering process ep → eXY , where Y is a proton or a low mass proton excitation carrying a fraction 1−x IP > 0.95 of the incident proton longitudinal momentum and the squared four-momentum transfer at the proton vertex satisfies |t| < 1 GeV2. Using data taken by the H1 experiment, the… (More)