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22 papers · 1 filter
Hybrid MSW + VO Solution of the Solar Neutrino Problem in String-Motivated Unified Theories
B. C. Allanach, G. K. Leontaris, S. T. Petcov
It is shown that the hybrid MSW + VO solution of the solar neutrino problem, according to which the solar nu_e undergo matter-enhanced transitions into nu_mu, nu_tau in the Sun fol…
Spin-wave series for quantum one-dimensional ferrimagnets
N. B. Ivanov
Second-order spin-wave expansions are used to compute the ground-state energy and sublattice magnetizations of the quantum one-dimensional Heisenberg ferrimagnet with nearest-neigh…
Information entropy as a measure of the quality of a nuclear density distribution
G. A. Lalazissis, S. E. Massen, C. P. Panos +1
The information entropy of a nuclear density distribution is calculated for a number of nuclei. Various phenomenological models for the density distribution using different geometr…
Comment on "Universal formulas for percolation thresholds. II. Extension to anisotropic and aperiodic lattices"
F. Babalievski
Recently S.Galam and A.Mauger [Phys.Rev.E 56, 322 (1997); cond-mat/9706304 ] proposed an approximant which relates the bond and the site percolation threshold for a particular latt…
Rigidity percolation on aperiodic lattices
A. Losev, F. Babalievski
We studied the rigidity percolation (RP) model for aperiodic (quasi-crystal) lattices. The RP thresholds (for bond dilution) were obtained for several aperiodic lattices via comput…
Three contributions to the "A Half Century of Stellar Pulsation Interpretations" proceedings
M. Catelan, A. V. Sweigart, J. Borissova +2
Paper I: "RR Lyrae Variables in Globular Clusters and the Second-Parameter Phenomenon" Authors: M. Catelan, A. V. Sweigart, J. Borissova Abstract: We propose to use RR Lyrae variab…