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54 papers · 1 filter
Local Ramsey theory. An abstract approach
José Mijares, Jesús Nieto
It is shown that the known notion of selective coideal can be extended to a family of subsets of , where is a topological Ramsey s…
Wigner Surmise For Domain Systems
Diego Luis Gonzalez, Gabriel Tellez
In random matrix theory, the spacing distribution functions are well fitted by the Wigner surmise and its generalizations. In this approximation the spacing functions…
Comment on "Hadronic He production near threshold"
K. P. Khemchandani, N. G. Kelkar, B. K. Jain
Measurements of the differential and total cross sections for the He reaction at five energies were recently reported [Phys. Rev. C {\bf 75}, 014004 (2007)] and com…
Model-independent measurement of the W boson helicity in top quark decays
D0 Collaboration, V. M. Abazov
We present the first model-independent measurement of the helicity of bosons produced in top quark decays, based on a 1 fb sample of candidate events in the d…
On the realization of Symmetries in Quantum Mechanics
Kai Johannes Keller, Nikolaos A. Papadopoulos, Andrés F. Reyes-Lega
The aim of this paper is to give a simple, geometric proof of Wigner's theorem on the realization of symmetries in quantum mechanics that clarifies its relation to projective geome…
First measurement of the forward-backward charge asymmetry in top quark pair production
D0 Collaboration, V. M. Abazov
We present the first measurement of the integrated forward-backward charge asymmetry in top-antitop quark pair (ttbar) production in proton-antiproton collisions in the lepton plus…