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130 papers · 1 filter
Evidence for a Mass Dependent Forward-Backward Asymmetry in Top Quark Pair Production
The CDF Collaboration, T. Aaltonen
We present a new measurement of the inclusive forward-backward t-tbar production asymmetry and its rapidity and mass dependence. The measurements are performed with 5.3 fb^{-1} of…
Barrier Lowering and Backscattering Extraction in Short-Channel MOSFETs
Gino Giusi, Giuseppe Iannaccone, Debrabata Maji +1
In this work we propose a fully experimental method to extract the barrier lowering in short-channel saturated MOSFETs using the Lundstrom backscattering transport model in a one s…
On the Existence of the Fundamental Eigenvalue of an Elliptic Problem in R^N
Jacopo Bellazzini, Vieri Benci, Marco G. Ghimenti +1
We study an eigenvalue problem for functions in R^N and we find sufficient conditions for the existence of the fundamental eigenvalue. This result can be applied to the study of th…
Semiclassical limit for the nonlinear Klein Gordon equation in bounded domains
Marco G. Ghimenti, Carlo R. Grisanti
We are interested to the existence of standing waves for the nonlinear Klein Gordon equation ε^2{\box}ψ + W'(ψ) = 0 in a bounded domain D. The main result of this paper is that, un…
Periodic orbits of a one dimensional non autonomous Hamiltonian system
Jacopo Bellazzini, Vieri Benci, Marco G. Ghimenti
In this paper we study the properties of the periodic orbits of x + V'_x(t, x) = 0 with x \in S1 and V(t, x) a T0 periodic potential. Called ρ \in (1/T0)Q the frequency of windings…
Morse Theory for Geodesics in Conical Manifolds
Marco G. Ghimenti
The aim of this paper is to extend the Morse theory for geodesics to the conical manifolds. We define these manifolds as submanifolds of with a finite number of conical sing…