5,271 research outputs found
Assessing the accuracy of Hartree-Fock-Bogoliubov calculations by use of mass relations
The accuracy of three different sets of Hartree-Fock-Bogoliubov calculations
of nuclear binding energies is systematically evaluated. To emphasize minor
fluctuations, a second order, four-point mass relation, which almost completely
eliminates smooth aspects of the binding energy, is introduced. Applying this
mass relation yields more scattered results for the calculated binding
energies. By examining the Gaussian distributions of the non-smooth aspects
which remain, structural differences can be detected between measured and
calculated binding energies. Substructures in regions of rapidly changing
deformation, specifically around and , are clearly
seen for the measured values, but are missing from the calculations. A similar
three-point mass relation is used to emphasize odd-even effects. A clear
decrease with neutron excess is seen continuing outside the experimentally
known region for the calculations.Comment: 13 pages, 9 figures, published versio
Effect of Prussian blue (ammonium-iron-hexacyanoferrate) in reducing the accumulation of radiocesium in reindeer
Exploration of the Relationship between Measures of Critical Thinking and Personality
The purpose of this study was to identify a profile of critical thinkers. Two hundred seventy-two university students completed the Watson-Glaser Critical Thinking Appraisal-Form S and the Myers-Briggs Type Indicator-Form G. Statistical analysis revealed the following: Intuitive introverts with a thinking preference scored higher in the total measure of critical thinking skill
Density of states determined from Monte Carlo simulations
We describe method for calculating the density of states by combining several
canonical monte carlo runs. We discuss how critical properties reveal
themselves in and demonstrate this by applying the method several
different phase transitions. We also demonstrate how this can used to calculate
the conformal charge, where the dominating numerical method has traditionally
been transfer matrix.Comment: Major revision of paper, several references added throughout. Current
version accepted for publication in Phys. Rev.
Hausdorff dimension of critical fluctuations in abelian gauge theories
The geometric properties of the critical fluctuations in abelian gauge
theories such as the Ginzburg-Landau model are analyzed in zero background
field. Using a dual description, we obtain scaling relations between exponents
of geometric and thermodynamic nature. In particular we connect the anomalous
scaling dimension of the dual matter field to the Hausdorff dimension
of the critical fluctuations, {\it which are fractal objects}. The
connection between the values of and , and the possibility of
having a thermodynamic transition in finite background field, is discussed.Comment: Accepted for publication in PR
Manifestation of quantum chaos on scattering techniques: application to low-energy and photo-electron diffraction intensities
Intensities of LEED and PED are analyzed from a statistical point of view.
The probability distribution is compared with a Porter-Thomas law,
characteristic of a chaotic quantum system. The agreement obtained is
understood in terms of analogies between simple models and Berry's conjecture
for a typical wavefunction of a chaotic system. The consequences of this
behaviour on surface structural analysis are qualitatively discussed by looking
at the behaviour of standard correlation factors.Comment: 5 pages, 4 postscript figures, Latex, APS,
http://www.icmm.csic.es/Pandres/pedro.ht
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