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45 papers · 1 filter
Thermally Pulsing AGB Models of Intermediate Mass Stars
O. Straniero, M. Limongi, A. Chieffi +3
We present a set of models of AGB stars with initial mass larger than 5 Mo as obtained with the FRANEC code. It includes models of Z=0.02 and Z=0.001, with and without mass loss.
The chemical composition of the rare J-type carbon stars
Carlos Abia, Jordi Isern
Abundances of lithium, heavy elements and carbon isotope ratios have been derived in 12 J-type galactic carbon stars. The abundance analysis shows that in these stars the abundance…
Scheme Dependence of Weak Matrix Elements in the Expansion
Johan Bijnens, Joaquim Prades
We show how the scheme- and scale-dependence of the short-distance operator product expansion with four-quark operators can be correctly accounted for in the framework of the $1/N_…
Quark mixing: determination of top couplings
F. del Aguila
The top flavour-changing neutral couplings can be large in extended models with vector-like quarks. In the next decade(s) the CERN Large Hadron Collider will allow to measure (boun…
Computation of confidence intervals for Poisson processes
J. A. Aguilar-Saavedra
We present an algorithm which allows a fast numerical computation of Feldman-Cousins confidence intervals for Poisson processes, even when the number of background events is relati…
Structure Constants for New Infinite-Dimensional Lie Algebras of U(N+,N-) Tensor Operators and Applications
M. Calixto
The structure constants for Moyal brackets of an infinite basis of functions on the algebraic manifolds M of pseudo-unitary groups U(N_+,N_-) are provided. They generalize the Vira…