73 research outputs found
Pairing fluctuations and gauge symmetry restoration in rotating superfluid nuclei
Rapidly rotating nuclei provide us good testing grounds to study the pairing
correlations; in fact, the transition from the superfluid to the normal phase
is realized at high-spin states. The role played by the pairing correlations is
quite different in these two phases: The static (BCS like mean-field)
contribution is dominant in the superfluid phase, while the dynamic
fluctuations beyond the mean-field approximation are important in the normal
phase. The influence of the pairing fluctuations on the high-spin rotational
spectra and moments of inertia is discussed.Comment: 14 pages, 5 figures, a contribution to the book "50 Years of Nuclear
BCS", edited by R.A.Broglia and V.Zelevinsk
Magnetic Properties of Precession Modes Built on High-K Multi-quasiparticle States in ^{178}W
We present an example that shows that the random phase approximation
performed on high-K multi-quasiparticle configurations leads to a rotor picture
by calculating excitation energies and magnetic properties of ^{178}W. Then we
deduce the effective g_R of the high-K rotors and compare it with that of the
low-K one.Comment: 6 pages, 3 figures, Prog. Theor. Phys., accepte
Heuristic quantization of the cranking model
We propose a simple and systematic method to quantize the cranking model and
to calculate the matrix elements of intrinsic operators entering the
generalized intensity relations. An example of the application is given to show
the Coriolis coupling effects for B(E3) values of the 3- octupole states in Gd
isotopes.Comment: 2 pages, Latex, using epsf.sty, 1 postscript figure Talk given at the
International School of Nuclear Physics, 18th. Course: "4pi High-Resolution
Gamma Ray Spectroscopy and Nuclear Structure", Erice, Italy, Sep. 16-24, 199
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