Now showing items 71-80 of 89
Fast ignitor concept with light ions
(Nauka/Interperiodica; MAIK "Nauka/Interperiodica" ; Springer Science+Business Media, 2001-12)
A short-laser-pulse driven ion flux is examined as a fast ignitor candidate for inertial confinement fusion. Ion ranges in a hot precompressed fuel are studied. The ion energy and the corresponding intensity of a short ...
Symmetry energies and the curvature of the nuclear mass surface
(Società Italiana di Fisica; Società Italiana di Fisica and Springer-Verlag, 2005-09)
A global study of the symmetry energies reflects upon the curvature of the mass surface. Special attention is given to the region from 56 Ni to 100 Sn. Isospin inversion is indicated for odd-odd self-conjugate nuclei. ...
High-energy ion generation in interaction. of short laser pulse with high-density plasma
(Springer-Verlag, 2002-03)
Multi-MeV ion production from the interaction of a short laser pulse with a high-density plasma, accompanied by an underdense preplasma, has been studied with a particle-in-cell simulation and good agreement is found with ...
Symbolic dynamics and periodic orbits of the Lorenz attractor*
(IOP Publishing Ltd, 2003-05-01)
The butterfly-like Lorenz attractor is one of the best known images of chaos. The computations in this paper exploit symbolic dynamics and other basic notions of hyperbolicity theory to take apart the Lorenz attractor using ...
Cosmology with a Shock-Wave
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2000-03)
We construct the simplest solution of the Einstein equations that incorporates a shock-wave into a standard Friedmann–Robertson–Walker metric whose equation of state accounts for the Hubble constant and the microwave ...
Gerbes over Orbifolds and Twisted K-Theory
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2004-03)
In this paper we construct an explicit geometric model for the group of gerbes over an orbifold X . We show how from its curvature we can obtain its characteristic class in H 3 ( X ) via Chern-Weil theory. For an arbitrary ...
Isobaric analog states of neutron-rich nuclei. Doppler shift as a measurement tool for resonance excitation functions
(Società Italiana di Fisica; Società Italiana di Fisica and Springer-Verlag, 2005-09)
We present a new approach for the measurement of resonance excitation functions of neutron-rich nuclei using Doppler shift information. Preliminary data from the first application of the method is presented in the spectroscopy ...
Neutrinos in a Vacuum Dominated Cosmology
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 2002-11)
We explore the dynamics of neutrinos in a vacuum dominated cosmology. First we show that such a geometry will induce a phase change in the eigenstates of a massive neutrino and we calculate the phase change. We also calculate ...
New NNLL QCD results on the decay B → X s ℓ + ℓ –
(Springer-Verlag; Società Italiana di Fisica, Springer-Verlag, 2004-07)
We present here new NNLL predictions on the inclusive rare decay B → X s ℓ + ℓ – based on our new two-loop QCD analysis of the four-quark operators.
Single-shot imaging of OH radicals and simultaneous OH radical/acetone imaging with a tunable Nd : YAG laser
(Springer-Verlag, 2004-07)
Single shot imaging capability for OH radical distributions in various atmospheric pressure methane flames upon excitation with a tunable frequency-quadrupled Nd : YAG laser is demonstrated. The laser wavelength can be ...